CN209132210U - A kind of enclosed type electric spray extraction ionization source device - Google Patents

Abstract

The utility model provides a kind of enclosed type electric spray extraction ionization source device, adjustment module is sprayed including Complex interface component, electron spray adjustment module, sample, under test gas introduces external member, ion source, camera and cavity for fixing above-mentioned each component, cavity is closed hollow frame structure, electron spray adjustment module and sample are sprayed adjustment module and are separately mounted in the first side and second side of main body frame and are symmetrical arranged, ion source is closed in the chamber of cavity, and mass spectrograph injection port is connected with the chamber of cavity；Camera is separately mounted on the top and electron spray adjustment module of cavity.Utility model device uses enclosed construction, ion source is located in the chamber of seal cavity, the rotary motion of ion source or gas sampling component not will cause the translational head at ion source tip or gas sampling component, realize that the wide-angle of ion source or gas sampling component is adjusted；Influence of the external environment to ionization is small, is particularly suitable for gas componant detection.

Description

A kind of enclosed type electric spray extraction ionization source device

Technical field

The utility model relates to electron spray extract ionization source device, and in particular to one kind can be not only used for conventional substances detection, It can be used for the enclosed type electric spray extraction ionization source device of gas componant detection again.

Background technique

Electron spray extraction ionization (Extractive Electro-Spray Ionization, EESI) mass spectrum (Mass Spectrometry, MS) analytical technology is a kind of modern ionization mass spectrometry technology, has without making complicated pretreatment to sample The characteristics of obtaining the relative molecular mass and structural information of determinand, particularly, the technology can gas to high moisture content it is molten Glue sample is directly analyzed, therefore has unique advantage to the composition detection of the gaseous samples such as air, characteristics of contaminated respiratory droplets gas, closely Become research hotspot over year.The source EESI is the core of EESI-MS technology, mainly by electron spray channel and sample spray channel structure At.Studies have shown that in experiment, between external environment, ionization voltage, gas/liquid flow velocity, the source EESI and mass spectrograph injection port Spatial position and the factors such as angular relationship, have significant impact to mass spectrometric signal.

However, due to the complexity of spatial position and angular adjustment between the source EESI and mass spectrograph injection port, existing dress Generally unenclosed construction is set, closing isolation can not be carried out to entire ionization process, although easy to use, low in cost, The source EESI is affected by larger, and comprehensive performance is poor, when especially being detected to gaseous sample, this external environment Influence it is especially big；And when adjusting the angle in the source EESI, the rotation in the source EESI often will cause existing regulating device The tip translation in the source ESSI deviates scheduled position, thus existing regulating device smaller, the Wu Faman that effectively adjusts angular range The sufficient source the ESSI demand that wide-angle is adjusted in some cases ..；Also the experimental provision having is converted on the basis of commercial apparatus , stability, poor repeatability, or layout are unreasonable, are unfavorable for blowdown, mass spectrograph easy to pollute seriously limits EESI-MS skill Application and the development of art.

Authorization Notice No. provides a kind of for the adjustable of electron spray extraction ionization source for the patent of invention of CN 104008949B Device, the device are provided with the regulating mechanism and rotary part in tri- direction X, Y, Z, can adjust electron spray channel spray head, sample The angle and distance of channel spray head and mass spectrograph injection port, disadvantage is that, which is unenclosed construction, can not be to whole A ionization process carries out closing isolation, and ionization process is influenced by the external world, influences on the detection of gaseous sample especially big；Electron spray Channel spray head is arranged on lower connecting plate with sample channel spray head and left and right arrangement, the not set pollution discharge structure in lower part are unfavorable for When blowdown, mass spectrograph easy to pollute, and electron spray channel spray head and sample channel spray head rotate in the horizontal direction, spray head tip Out of position, angle of regulation range is small.

Utility model content

To solve the above-mentioned problems, it is flexible, easy to use closed to provide a kind of compact layout, configuration for the utility model Electron spray extracts ionization source, can reduce influence of the external environment to ionization process, can be not only used for detection conventional substances, may be used also It is detected for gas componant.

The above-mentioned purpose of the utility model is realized by following technical scheme:

A kind of enclosed type electric spray extraction ionization source device, including for installing mass spectrometric Complex interface component (1), electricity Spraying adjustment module (3) and sample are sprayed adjustment module (4) and one for fixing Complex interface component (1), electron spray adjusting Module (3) and sample are sprayed the cavity (2) of adjustment module (4), and cavity (2) is closed hollow frame structure, including body frame Frame (21) and the upper surface of be separately mounted to main body frame (21), below, front, back, first side, the upper cover of second side Component (22), lower cover component (25), Complex interface component (1), rear case component (26), the first side cover assembly (23) and the second side cover The closed chamber that component (24) is formed, electron spray adjustment module (3) and sample are sprayed adjustment module (4) and are separately mounted to main body It in the first side and second side of frame (21) and is symmetrical arranged, is mounted on electron spray adjustment module (3) and/or sample is spraying Ion source (5) in adjustment module (4) is closed in the chamber of cavity (2), and mass spectrograph injection port is connected with the chamber of cavity (2) It is logical.

In above-mentioned enclosed type electric spray extraction ionization source device, the cover assembly (22) include a upper cover plate (221) with And the vertical lens supporting structure (223) being fixed on upper cover plate (221), upper cover plate (221) are mounted on main body frame (21) The upper surface of, upper cover plate (221) is provided with see-through the first observation window (222), pacifies on the vertical lens supporting structure (223) Equipped with a camera (6), camera (6) is located at the top of the first observation window (222).

In above-mentioned enclosed type electric spray extraction ionization source device, the lower cover component (25) includes lower cover plate (251) and row Dirty sealing plate (253) is provided with a sewage draining exit (252) on lower cover plate (251), and sewage draining exit (252) is connected with the chamber of cavity (2) Logical, blowdown sealing plate (253) covering sewage draining exit (252) is simultaneously connect with lower cover plate (251).

In above-mentioned enclosed type electric spray extraction ionization source device, the first side of main body frame (21) and its first side cover group Part (23) and second side and its second side cover assembly (24) structure are identical and arranged symmetrically, wherein the of main body frame (21) First side plate is installed on one side, the first through hole being connected with the chamber of cavity (2) is provided in first side plate (235), the periphery of first through hole (235) is provided with the first groove (233), is placed with the first sealing plate in the first groove (233) (234), the first shaft hole for installing the rotary shaft that electron spray adjustment module (3) is equipped with is provided on the first sealing plate (234) (236)；First side cover assembly (23) includes the first side cover plate (231), is provided on the first side cover plate (231) and first through hole (235) through-hole to match；The size of first sealing plate (234), and can be with electron spray tune less than the size of the first groove (233) Section module (3) moves freely in the first groove (233), and the first sealing plate (234) covers first through hole (235) always.

In above-mentioned enclosed type electric spray extraction ionization source device, electron spray adjustment module (3) and sample are sprayed adjustment module (4) it is respectively equipped with the identical first ion source fixed frame (37) of structure and the second ion source fixed frame (47), the first ion source is solid Determine frame (37) and the second ion source fixed frame (47) is separately mounted to electron spray adjustment module (3) and sample is sprayed adjustment module (4) in rotary shaft；

First ion source fixed frame (37) includes the first cylindrical drum (371), the first open circles column casing (372) and connection the The first connecting rod (373) of one cylindrical drum (371) and the first open circles column casing (372), first connecting rod (373) and the first circle The central axis of column casing (371) is at an acute angle, and the central axis of the first open circles column casing (372) and the first cylindrical drum (371) Central axis upright intersection, the opening of the first open circles column casing (372) are provided with the hold-fast body for extending vertically through opening both ends； First cylindrical drum (371) is set in the rotary shaft of electron spray adjustment module (3), and the first open circles column casing (372) is set with ion The tip in source (5), ion source (5) is located on the central axes of rotary shaft.

In above-mentioned enclosed type electric spray extraction ionization source device, the rear case component (26) includes a back shroud (261), after Cover board (261) is provided with see-through the second observation window (262) and the first gas path joint (265), the second gas path joint (266), fluid path connector (267), fluid path connector (268) and terminal (2610) are powered on；

Ion source (5) on first ion source fixed frame (37) is located above the chamber of cavity (2), gas circuit pipe (53), Influidic pipe (52) is drawn by the first gas path joint (265) of back shroud (261) top setting, power-up fluid path connector (267) respectively Out, the ion source (5) on the second ion source fixed frame (47) is located at below the chamber of cavity (2), gas circuit pipe (53), influidic pipe (52) the second gas path joint (266), the fluid path connector (268) being arranged respectively by back shroud (261) lower part are drawn；

Or the first ion source (5) on ion source fixed frame (37) is located at below the chamber of cavity (2), gas circuit pipe (53), the first gas path joint (265), power-up fluid path connector that influidic pipe (52) is arranged by back shroud (261) lower part respectively (267) it draws, the ion source (5) on the second ion source fixed frame (47) is located above the chamber of cavity (2), gas circuit pipe (53), influidic pipe (52) is drawn by the second gas path joint (266) of back shroud (261) top setting, fluid path connector (268) respectively Out.

In above-mentioned enclosed type electric spray extraction ionization source device, the lower end of the back shroud (261) is rotated by a word axis Mechanism (269) is fixed on cavity (2), and back shroud (261) can be rotated around a word axis rotating mechanism (269)；Back shroud (261) Upper end be detachably arranged in behind main body frame (21).

In above-mentioned enclosed type electric spray extraction ionization source device, electron spray adjustment module (3) further includes one for horizontal solid Determine the horizontal lens supporting structure (38) of camera (6), the first ion source fixed frame (37) is additionally provided with a Circular glass piece (374), Circular glass piece (374) is placed in the first cylindrical drum (371)；Camera (6) level sequentially passes through horizontal camera and fixes The second camera mounting hole (382) of frame (38) setting and the rotary shaft of hollow electron spray adjustment module (3), and extend to At Circular glass piece (374) in the first cylindrical drum (371) of first ion source fixed frame (37).

In above-mentioned enclosed type electric spray extraction ionization source device, a under test gas is additionally provided on the back shroud (261) It introduces interface (263), introduces external member (7) with a gas and be used cooperatively, to introduce gaseous sample；The gas introduces external member It (7) include gas sampling component (71), the head of gas sampling component (71) introduces interface from the under test gas of back shroud (261) (263) it protrudes into the chamber of cavity (2), and is mounted on the second ion source fixed frame (47) that sample is sprayed adjustment module (4) On.

In above-mentioned enclosed type electric spray extraction ionization source device, gas sampling component (71) includes gas-guide tube (711), connection Gas-guide tube (711) tail end flow controller (716) and be connected to flow controller (716) for introducing gas to be detected Mouthpiece (717), gas-guide tube (711) are successively socketed with outer tube (712), screw head (713) and heating tape from head to tail portion (714), the periphery of heating tape (714) is also socketed with instlated tubular (715)；Gas-guide tube (711), heating tape (714) and instlated tubular It (715) is flexible material or elastic material.

The utility model is using above technical scheme, it can be achieved that following technical effect:

(1) utility model device uses enclosed construction, and ion source is located in the chamber of seal cavity, external environment pair The influence of ion source is small, and the device stability is high, is particularly suitable for gas componant detection；

(2) electron spray adjustment module and sample are sprayed adjustment module and the first ion source fixed frame and the second ion are respectively set Source fixed frame, the ion source tip being mounted on the first fixed frame and the ion source tip being mounted on the second fixed frame or gas The head of sample introduction module is always positioned on the rotary shaft in rotary course, and the rotary motion of ion source or gas sampling component is not It will cause the translational head at ion source tip or gas sampling component, realize the wide-angle tune of ion source or gas sampling component Section；

(3) electron spray adjustment module and sample are sprayed adjustment module and are arranged in the opposite side of cavity, ion source or The Plane of rotation of gas sampling component is fore-and-aft plane, and cavity lower part is provided with sewage draining exit, is convenient for blowdown；

(4) upper cover plate of cavity, lower cover plate are structure easy to disassemble, and back shroud is rotatable opening type structure, are convenient for The chamber interior of cavity is operated, it is easy to use；

(5) by being mounted on the terminal of back shroud, power supply can be introduced in chamber, meet chamber it is indoor heating, The demands such as illumination；The upper cover plate and back shroud of cavity are respectively set the first observation window, the second observation window and in upper cover plates and Camera is respectively arranged in one side cover plate, observes by the naked eye or video, the image of camera acquisition observe ion source or gas in real time The position and angle of sample introduction module and mass spectrograph injection port carry out coarse adjustment, and carry out fine tuning, adjustment according to spectrometer signal power Position, angular values after in place pass through electron spray adjustment module respectively and sample be sprayed differential head scale in adjustment module, Angle index line is read out, and realizes that quantization is adjusted；

(6) the utility model compact layout, each main member simple process, most of accessory are the standard for being easy buying Part, thus cost is relatively low.

Detailed description of the invention

Fig. 1 is the three-dimensional structure diagram of utility model device embodiment；

Fig. 2 is the structural exploded view of each comprising modules in Fig. 1；

Fig. 3 is the structural exploded view of cavity；

Fig. 4 is the structural exploded view of electron spray adjustment module；

Fig. 5 is the structural exploded view that sample is sprayed adjustment module；

Fig. 6 is the three-dimensional structure diagram of ion source；

Fig. 7 is the three-dimensional structure diagram that gas introduces external member；

Fig. 8 is the mounting structure exploded view that gas introduces external member；

Fig. 9 is the structural schematic diagram of Complex interface component；

Figure 10 is the structural schematic diagram of cover assembly；

Figure 11 is the structural decomposition diagram of vertical lens supporting structure；

Figure 12 A is the structural schematic diagram of the first side of main body frame；

Figure 12 B is the structural schematic diagram of the first side cover assembly；

Figure 13 A is the structural schematic diagram of the second side of main body frame

Figure 13 B is the structural schematic diagram of the second side cover assembly；

Figure 14 is the structural schematic diagram of lower cover component；

Figure 15 is the structural schematic diagram of rear case component；

Figure 16 is the structural schematic diagram that the first Y-direction adjusts component；

Figure 17 is the structural schematic diagram that the first rotation adjusts component；

Figure 18 is the structural schematic diagram and its partial enlarged view of the first ion source fixed frame；

Figure 19 is the structural schematic diagram of horizontal lens supporting structure；

Figure 20 is the longitudinal sectional view of gas sampling component；

Figure 21 is the structural schematic diagram of fixing sleeve.

Appended drawing reference indicates in figure are as follows:

1: Complex interface component, 11: through-hole；

2: cavity, 21: main body frame；

22: cover assembly, 221: upper cover plate, 222: the first observation windows, 223: vertical lens supporting structure, 2231: the first Camera mounting hole, 2232: locking screw pit, 224: hand screw；

23: the first side cover assemblies, 231: the first side cover plates, 232: first side observation window, 233: the first grooves, 234: the One sealing plate, 235: first through hole, 236: first shaft hole；

24: the second side cover assemblies, 241: the second side cover plates, 242: second side observation window, 243: the second grooves, 244: Second sealing plate, 245: the second through-holes, 246: the second axis holes；

25: lower cover component, 251: lower cover plate, 252: sewage draining exit, 253: blowdown sealing plate；

26: rear case component, 261: back shroud, 262: the second observation windows, 263: under test gas introducing interface, 264: screw thread Hole, 265: the first gas path joints, 266: the second gas path joints, 267: power-up fluid path connector, 268: fluid path connector, 269: one word axis Rotating mechanism, 2691: one word axis, 2692: rotating cylinder, 2610: terminal；

3: electron spray adjustment module, 31: the first Y-directions adjusting component, 311: fixed block, 312: sliding shoe, 313: driving hand Take turns (differential head), 314: clamping screw, 32: the first Z-directions adjust component, 33: the first connecting plates, 34: the one X to adjust component, 35: the first linking arms, 36: the first rotation adjusting components, 361: dead axle, 3611: zero-bit markings, 362: rotary shaft, 3621: rolling Flower, 3622: angle index line, 363: hand twists lock-screw, 37: the first ion source fixed frames, 371: the first cylindrical drums, and 372: First open circles column casing, 373: first connecting rod, 374: Circular glass piece, 375: combination screw hole one, 376: fastening screw one, 38: Horizontal lens supporting structure, 381: retaining mechanism, 382: second camera mounting hole；

4: sample is sprayed adjustment module, and 41: the second Y-directions adjust component, and 42: the second Z-directions adjust component, 43: the second connections Plate, 44: the two X adjust component, 47: the second ion source fixed frames to component, 45: the second linking arms, 46: the second rotations are adjusted；

5: ion source, 51: tip, 52: influidic pipe, 53: gas circuit pipe；

6: camera

7: gas introducing external member, 71: gas sampling component, 711: gas-guide tube, 712: outer tube, 713: screw head, 714: adding The torrid zone, 715: instlated tubular, 716: flow controller, 717: mouthpiece；72: fixing sleeve, 721: combination screw hole two, 722: fastening spiral shell Nail two, 723: through slot, 724: external screw thread；

8: Screw-thread sealing plug.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model enclosed type electric spray extraction ionization source device is carried out detailed It describes in detail bright, wherein the device of identical structure and function is marked with identical appended drawing reference in attached drawing, and attached drawing is only intended to help Explanation the utility model is helped, the limitation to the scope of the utility model is not represented.

Fig. 1 and Fig. 2 is the three-dimensional structure diagram of utility model device main structure, and Fig. 3 shows the decomposition knot of cavity 2 Structure, Fig. 7 and Fig. 8 show the structure that under test gas introduces external member.As shown in Figure 1, Figure 2, Figure 7 and Figure 8, the utility model is closed Formula electron spray extraction ionization source device is closed cavity body structure, including Complex interface component 1, electron spray adjustment module 3, sample Spraying adjustment module 4, under test gas introduce external member 7, ion source 5, camera 6 and the cavity 2 for fixing above-mentioned each component, Cavity 2 is closed hollow frame structure, and Complex interface component 1 is installed on before cavity 2, for installing mass spectrograph；It is to be measured Gas introduces external member 7 and is mounted on behind cavity 2 by a rear case component 26, and electron spray adjustment module 3 and sample are adjusted by spraying The head of module 4 is each passed through first side component 23 and second side component 24 enters in the chamber of cavity 2, and electron spray is adjusted Module 3 and sample are sprayed adjustment module 4 and are mounted on cavity 2 and are symmetrical arranged；The upper surface of cavity 2 is respectively equipped with below Cover assembly 22 and lower cover component 25, ion source 5 is individually fixed in electron spray adjustment module 3 and sample is sprayed in adjustment module 4 And be located in the chamber of cavity 2, camera 6 is separately mounted on the top and electron spray adjustment module 3 of cavity 2, for shooting The video or image of the chamber interior of cavity 2.

Cavity 2

Fig. 3 shows the decomposition texture of cavity 2, and Fig. 9 to Figure 15 respectively illustrates the structure of each building block of cavity 2. As shown in figure 3, cavity 2 include main body frame 21 and the upper surface of be separately mounted to main body frame 21, below, front, back, the Two side faces (left side shown in Fig. 3), the cover assembly 22 of first side (right side shown in Fig. 3), lower cover component 25, synthesis Interface module 1, rear case component 26, the second side cover assembly 24 and the first side cover assembly 23, in which:

Cover assembly 22 is installed on the top of main body frame 21, and as shown in Figure 10 and Figure 11, cover assembly 22 includes upper cover plate 221 and the vertical lens supporting structure 223 that is fixed on upper cover plate 221, the quadrangle of upper cover plate 221 pass through hand screw 224 It is mounted on the upper surface of main body frame 21, it is easy to disassemble；It is provided with the first observation window 222 in the middle part of upper cover plate 221, passes through the first observation The chamber interior situation of 222 observable cavity 2 of window；Vertical lens supporting structure 223 is L shaped plate, and the short slab of L shaped plate is fixed on 221 side of cover board, the long slab of L shaped plate are located at the top of the first observation window 222, and the first of installation camera 6 is provided on long slab Camera mounting hole 2231, the side of long slab are provided with the locking screw pit 2232 being connected with the camera mounting hole, locking Threaded hole 2232 is provided with externally threaded hand screw, and camera 6 is vertically placed in the first camera mounting hole 2231, and It screws the hand screw being located in locking screw pit 2232 camera 6 is locked.It is smaller that diameter can be used in camera 6 Commercial endoscopic camera.

Lower cover component 25 is installed, as shown in figure 14, lower cover component 25 includes lower cover plate 251 and row below main body frame 21 Dirty sealing plate 253 is provided with a sewage draining exit 252 on lower cover plate 251, and sewage draining exit 252 is connected with the chamber of cavity 2, blowdown sealing plate 253 covering sewage draining exits 252 simultaneously links together with lower cover plate 251, when needing blowdown, blowdown sealing plate 253 is removed change into it is external Sewage pipe.

Complex interface component 1 is installed before main body frame 21, as shown in figure 9, Complex interface component 1 is square structure, Middle part is provided with a through-hole 11, and mass spectrograph injection port is fixed to the through-hole of Complex interface component 1 by positioning pin and retaining mechanism At 11, so that mass spectrograph injection port is connected with the chamber of cavity 2.

Rear case component 26 is installed behind main body frame 21, as shown in figure 15, rear case component 26 includes a back shroud 261, The lower end of back shroud 261 is fixed on cavity 2 by a word axis rotating mechanism 269, and the upper corners of back shroud 261 are provided with two A threaded hole 264, hand screw matches with threaded hole 264 and back shroud 261 is mounted on behind main body frame 21, after being convenient for The disassembly of cover board 261, after the hand screw of 261 upper end of back shroud is unscrewed, back shroud 261 can be around 269 turns of a word axis rotating mechanism It is dynamic；The middle part of back shroud 261 is provided with the second observation window 262, for operator from the chamber interior of external observation cavity 2 Situation；The top of back shroud 261 is provided with multiple through-holes in spacing setting, is respectively used to the first gas path joint 265 of installation, the Two gas path joints 266, power-up fluid path connector 267, fluid path connector 268, in the embodiment as shown in Figure 15, back shroud 261 it is upper Two through-holes of portion's setting install the first gas path joint 265 and power-up fluid path connector 267 respectively, for be mounted on electron spray tune It saves the ion source 5 in module 3 and high pressure nitrogen and extractant is provided, two through-holes of the lower part setting of back shroud 261 are pacified respectively The second gas path joint 266 and fluid path connector 268 are filled, for be mounted on the ion source 5 or gas that sample is sprayed in adjustment module 4 Sample introduction module 71 provides high pressure nitrogen and sample solution；It is additionally provided with a under test gas on back shroud 261 and introduces interface 263, it should It is that threaded hole is sealed threaded hole with a Screw-thread sealing plug 8, when being not used in use, by gas that under test gas, which introduces interface 263, It introduces external member 7 to be mounted under test gas introducing interface 263, can detecte gaseous sample or directly detection characteristics of contaminated respiratory droplets gas； The through-hole for installing terminal 2610 is additionally provided on back shroud 261, electric wire is passed into chamber from terminal 2610 It is lighting device and the heating device power supply of the chamber interior of cavity 2 in the chamber of body 2.

It is located in the chamber of cavity 2 due to ion source 5, external nitrogen, extractant head and the sample of ion source 5 pass through respectively The first gas path joint 265, power-up fluid path connector 267, the second gas path joint 266 and fluid path connector 268 on back shroud 261 draw Enter, the frequency that rear case component 26 is opened is higher, and for the ease of the opening of rear case component 26, rear case component 26 is rotated using a word axis Mechanism 269 and the mode of hand screw cooperation are fixed on behind cavity 2, and back shroud 261 can be beaten around a word axis rotating mechanism 269 It opens.As shown in figure 15, a word axis rotating mechanism 269 includes a word axis 2691 and is sleeved in the middle part of a word axis and there is damping to make The both ends of rotating cylinder 2692, a word axis 2691 are fixed by screws on cavity 2, and rotation is fixed in the lower end of back shroud 261 On rotating cylinder 2692, back shroud 261 can rotate within the scope of 0-90 ° around a word axis 2691, and due to the presence of damping action, Back shroud 261 can open certain angle and stop, and facilitate operation.

The first side of main body frame 21 installs the first side cover assembly 23, and as shown in Figure 12 B, the first side cover assembly 23 includes First side cover plate 231, the first side cover plate 231 are fixed at the first side of cavity 2 by screw, the first side cover plate 231 it is upper End and lower end are respectively arranged with see-through first side observation window 232, the situation of the chamber interior for observing cavity 2；Such as Shown in Figure 12 A, first side plate is installed in the first side of the main body frame 21 of cavity 2, be provided in first side plate with The first through hole 235 that the chamber of cavity 2 is connected, the periphery of first through hole 235 are provided with the first groove 233, the first groove The first sealing plate 234 is placed in 233, the first sealing plate 234 is provided with first to match with the rotary shaft of electron spray adjustment module 3 Axis hole 236 is provided with the through-hole (2B referring to Fig.1) to match with first through hole 235 on first side cover plate 231.In Figure 12 A and figure In embodiment shown in 12B, the first groove 233 is located between two first side observation windows 232 close to Complex interface component 1 Position, the size of the first sealing plate 234 is less than the size of the first groove 233, and the first sealing plate 234 can adjust mould with electron spray Block 3 moves freely in the first groove 233, then it is mobile during, the first sealing plate 234 covers first through hole 235 always；First The position that side panel and the first side cover plate 231 are located between two first side observation windows 232 close to rear case component 26 is provided with Notch, main body frame 21 is being extended with pillar in the indentation, there, for installing fixed electron spray adjustment module 3.

The second side of main body frame 21 installs the second side cover assembly 24, as shown in figures 13 a and 13b, main body frame 21 Second side be oppositely arranged with first side, the second side cover assembly 24 is identical as 23 structure of the first side cover assembly, positional symmetry, Therefore, the second side cover plate 241, second side observation window 242, the second groove 243, the second sealing plate 244,245 and of the second through-hole The structure of the first side of the structural reference main body frame 21 of second axis hole 246 and the first side cover assembly 23.

Electron spray adjustment module 3

Fig. 4 shows the decomposition texture of electron spray adjustment module 3, and Figure 16 to Figure 19 respectively illustrates electron spray module 3 The structure of each building block.Electron spray adjustment module 3 is mounted in the first side of cavity 2, as shown in figure 4, including three-dimensional flat Move regulating mechanism, rotating mechanism and connection D translation regulating mechanism, the connection structure of rotating mechanism and for fixed ion The first ion source fixed frame 37 in source 5, for the horizontal lens supporting structure 38 of horizontal fixing camera 6.

Wherein, D translation regulating mechanism includes that the first Y-direction adjusts component 31, the first Z-direction adjusts component 32 and the first X To component 34 is adjusted, bindiny mechanism includes the first connecting plate 33 and the first linking arm 35.The utility model is with standard triaxial coordinate System define X to, Y-direction, three direction of Z-direction, to referring to that level moves left and right direction (left and right directions shown in FIG. 1), Y-direction refers to perpendicular X Direction directly is moved up and down, Z-direction refers to along mass spectrograph injection port axis moving direction.First Y-direction adjusts component 31, the first Z-direction tune The structure for saving component 32 and the first X to adjusting component 34 is essentially identical, and position and direction when only installing are different, with the first Y To adjust component 31 for, as shown in figure 16, the first Y-direction adjust component 31 include fixed block 311, can be along the cunning of fixed block 311 The sliding shoe 312 of rail sliding, the driving handwheel (differential head) 313 for driving sliding shoe 312 to slide and for by fixed block 311 The clamping screw 314 locked with sliding shoe 312, the specific structure of D translation regulating mechanism please refer to Authorization Notice No. and are The patent of invention of CN104008949B realizes the moving horizontally in three-dimensional of electron spray adjustment module 3, by driving handwheel (differential head) 313, i.e. differential head scale can read moving distance numerical value；First connecting plate 33 and the first linking arm 35 are L Shape folded plate, each plate face middle part are provided with through-hole.

Rotating mechanism is that the rotation of hollow cylinder axle construction adjusts component, including dead axle and rotary shaft.In the embodiment, rotation Rotation mechanism is that the first rotation adjusts component 36, and as shown in figure 17, it is nested hollow cylinder axis knot that the first rotation, which adjusts component 36, Structure, including dead axle 361, rotary shaft 362 and hand twist lock-screw 363,362 inlay card of rotary shaft in dead axle 361, for the ease of Operate and check rotation angle value, the head (the neighbouring position with dead axle 361) of rotary shaft 362 is provided with annular knurl 3621, rotation 362 head of shaft and the adjoining position of dead axle 361 are circumferentially provided with angle index line 3622, dead axle 361 and angle index line 3622 adjacent positions are provided with zero-bit markings 3611, and the first ion source fixed frame 37, ion are installed in the tail portion of rotary shaft 362 Source 5 is fixed on the first ion source fixed frame 37.In use, the annular knurl of rotary shaft 362 is rotated manually, to adjust ion source 5 Tip between and the angle between the tip and mass spectrograph injection port of ion source 5, after being adjusted to proper angle, by hand twist Rotary shaft 362 and the fixed locking of dead axle 361 are passed through observation zero-bit markings 3611 and angle index line by lock-screw 363 3622 relative position can obtain the angle of 5 relative level of ion source.

As shown in figure 18, the first ion source fixed frame 37 is for installing ion source 5, including the first cylindrical drum 371, first opens Mouth cylindrical drum 372 and the first connecting rod 373 for connecting the first cylindrical drum 371 and the first open circles column casing 372, first connecting rod 373 is at an acute angle with the central axis of the first cylindrical drum 371, and the central axis and the first cylindrical drum of the first open circles column casing 372 371 central axis upright intersection, the opening of the first open circles column casing 372 are provided with hold-fast body.It is real shown in Figure 18 It applies in example, hold-fast body is the combination screw hole 1 and fastening screw for extending vertically through the opening both ends of the first open circles column casing 372 One 376.In use, the first cylindrical drum 371, which is loaded to the first rotation, adjusts the tail portion of the rotary shaft 362 of component 36, the first cylinder The central axis of cylinder 371 and the first rotation adjust the rotation axis coincident of component 36, and ion source 5 is set in the first open circles column casing In 372, and the tip for adjusting ion source 5 is located on the central axis of the first cylindrical drum 371, and fastening screw 1 is inserted into It is tightened in combination screw hole 1, the ion source 5 so that the first open circles column casing 372 is fixedly clamped, when the first rotation adjusts component 36 When ion source 5 being driven to rotate, the tip of ion source 5 is remained on rotation axis, not will cause the tip translation of ion source 5 Rotation axis out, to realize the angular adjustment of larger angle.In order to reinforce cavity 2 chamber interior leakproofness, protect simultaneously The burn into that camera is protected from sample reagent destroys, and the first ion source fixed frame 37 is additionally provided with a Circular glass piece 374, circle glass Glass piece 374 is placed in the first cylindrical drum 371.

As shown in figure 19, horizontal lens supporting structure 38 and the first rotation adjust component 36 and are mounted on the first linking arm 35 The middle part of the two sides of same plate face, horizontal lens supporting structure 38 is provided with second camera mounting hole 382, camera installation Hole is connected with the through-hole of the first linking arm 35, hollow axis 361, rotary shaft 362, successively wears in use, camera 6 is horizontal It crosses the mounting hole of horizontal lens supporting structure 38, the through-hole of the first linking arm 35 and the first hollow rotation and adjusts component 36, use In the chamber interior situation for observing cavity 2 from horizontal direction.For fixing camera 6, horizontal lens supporting structure 38 is also set up There is a retaining mechanism 381, which can be the through-hole and locking screw being connected with second camera mounting hole 382 The fit structure of nail.

When electron spray adjustment module 3 is installed, the fixed block 311 that the first Y-direction adjusts component 31 is mounted on the first of cavity 2 On pillar on side, straight down, the sliding shoe 312 that the first Y-direction adjusts component 31 is fixed for driving handwheel (differential head) 313 In on the fixed block that the first Z-direction adjusts component 32, mass spectrograph injection port is arranged in the driving handwheel that the first Z-direction adjusts component 32 Axis direction, the sliding shoe that the first Z-direction adjusts component 32 are fixed in the side plate face of the first connecting plate 33, and the first X is to adjusting The fixed block of component 34 is fixed in another lateral plates of the first connecting plate 33, and the first X is set to the driving handwheel for adjusting component 34 It setting in horizontal left and right directions, the first X is fixed in the side plate face of the first linking arm 35 to the sliding shoe for adjusting component 34, the The dead axle 361 that one rotation adjusts component 36 is fixed in another lateral plates of the first linking arm 35, and horizontal camera is fixed Frame 38 is fixed on the opposite side of the plate face of the first linking arm 35 where the first rotation adjusting component 36, and the first rotation adjusts component 36 362 head of rotary shaft pass through the through-hole of the first sealing plate 244 of the first side cover assembly 23 and protrude into the chamber of cavity 2, and be set with First ion source fixed frame 37 installs ion source 5 on first open circles column casing 372 of the first ion source fixed frame 37, makes ion The tip in source 5 is located on the center line axis of rotary shaft, by fastening screw 1 that ion source 5 is fixed, and camera 6 is worn It crosses the mounting hole of horizontal lens supporting structure 38, the through-hole of the first linking arm 35 and the first hollow rotation and adjusts component 36, and It is using the retaining mechanism 381 of horizontal lens supporting structure 38 that camera 6 is fixed.Component 36 is adjusted by the first rotation of rotation Annular knurl in rotary shaft 362 drives ion source 5 to turn to suitable position, passes through so that rotary shaft 362 is rotated around dead axle 361 Hand twists lock-screw 363 and rotary shaft 362 and dead axle 361 is locked.

Sample is sprayed adjustment module 4

Fig. 5 shows the decomposition texture that sample is sprayed adjustment module 3.Sample is sprayed that adjustment module 4 is mounted on cavity 2 It on two side faces, is symmetrically arranged with electron spray adjustment module 3, including D translation regulating mechanism, rotating mechanism and connection D translation regulating mechanism, the connection structure of rotating mechanism and for fixed ion source 5 or gas sampling component 71 (referring to figure 7) the second ion source fixed frame 47.Wherein, D translation regulating mechanism includes that the second Y-direction adjusts component 41, the second Z-direction tune It includes the second connecting plate 43 and the second linking arm 45 that component 42 and the 2nd X, which are saved, to component 44, bindiny mechanism is adjusted；Rotating mechanism is Second rotation adjusts component 46.Other than sample is sprayed the not set horizontal lens supporting structure component of adjustment module 4, above-mentioned sample Each modular construction and installation method of the structure and electron spray adjustment module 3 of each component of spraying adjustment module 4 are essentially identical, this In repeat no more.

Ion source 5

As shown in fig. 6, ion source 5 includes the influidic pipe 52 and gas circuit pipe 53 positioned at the tip 51 on head and positioned at tail portion, The ion source 5 is universal ion source, both may be used as the spray head in electron spray channel, and had been also used as the spray head of sample channel, Ion product-derived general in the market can be used.When being passed through extractant in influidic pipe 52, it is passed through high pressure nitrogen in gas circuit pipe 53, Electron spray is formed at the tip of ion source 5 51, the ion source 5 is used as electron spray channel spray head at this time.When influidic pipe 52 is logical Enter sample solution, high pressure nitrogen is passed through in gas circuit pipe 53, then the tip 51 of ion source 5 forms sample and is sprayed, and ion source 5 is made at this time For the use of sample channel spray head.

In use, the ion source 5 installed in electron spray adjustment module 3 is usually adjusted to chamber as electron spray channel spray head Above the chamber of body 2, sample is sprayed the ion source 5 installed in adjustment module 4 and is adjusted to cavity 2 as sample channel spray head Chamber lower section, or electron spray channel spray head is adjusted to below the chamber of cavity 2, sample channel spray head is adjusted to cavity 2 (the first gas path joint 265 on back shroud, power-up fluid path connector 267 and the second gas path joint 266, fluid path at this time above chamber The position of connector 268 will also be exchanged), it can be by adjusting so that the tip 51 of two ion sources 5 is respectively positioned on mass spectrograph injection port On central axis, then by 261 Unscrew of back shroud, gas circuit pipe 53, the fluid path of the ion source 5 in electron spray adjustment module 3 Pipe 52 is drawn by the first gas path joint 265 of 261 top of back shroud setting, power-up fluid path connector 267 respectively, and sample is adjusted by spraying Save the gas circuit pipe 53 of the ion source 5 in module 4, the second gas path joint that influidic pipe 52 is arranged by 261 lower part of back shroud respectively 266, fluid path connector 268 is drawn, and after the completion of connection, is closed back shroud 261 and is tightened hand screw and fix, wherein for the ease of Installation, the influidic pipe 52 and gas circuit pipe 53 of ion source 5 are usually hose or elastic tube, are able to bear a degree of bending and become Shape.Optimal positional relationship and angular relationship between ion source 5 and between ion source 5 and mass spectrograph injection port, please refer to Authorization Notice No. is the related content in the patent of invention of CN104008949B.

Ion source 5 and sample in electron spray adjustment module 3 are sprayed optimum bit locating for the ion source 5 in adjustment module 4 It sets, the judgement and adjustment of angle, when coarse adjustment, passes through the first observation window 222 on upper cover plate 221 and second on back shroud 261 Observation window 262 is visually observed or the camera of vertical direction and horizontal reversed camera is connected on display and is carried out The image of the chamber interior of real-time display cavity 2, observation in real time, adjustment, is first adjusted to approximate location for ion source 5；Further according to The mass signal power of acquisition carries out accurate adjustment, when adjusting in place, passes through the angle index line and sample in electron spray adjustment module 3 Product are sprayed the angle index line reading angular value in adjustment module 4.

Under test gas introduces external member 7

Referring to Fig. 7 and Fig. 8, the structure of external member 7 is introduced for gas.Gas introduces the back shroud that external member 7 is mounted on cavity 2 261 under test gas introduces at interface 263 and (backs out the Screw-thread sealing plug 8 that under test gas introduces on interface 263), is used for gas The chamber interior of cavity 2 is introduced, gas componant detection is carried out.

As shown in figure 20, gas introduces external member 7 including gas sampling component 71 and is used for fixed gas sample introduction module 71 Fixing sleeve 72.Gas sampling component 71 includes gas-guide tube 711,716 and of flow controller for being connected to 711 tail end of gas-guide tube It is connected to flow controller 716 and is successively covered for introducing the mouthpiece 717 of gas to be detected, gas-guide tube 711 from head to tail portion It is connected to outer tube 712, screw head 713 and heating tape 714, heating tape 714 is wrapped in the periphery of gas-guide tube 711, for by leading The gas of tracheae 711 heats, and quickly scatters and disappears to be isolated from the outside heating tape 714 to prevent heat, the periphery of heating tape 714 is also It is socketed with instlated tubular 715；Screw head 713 is used cooperatively with outer tube 712, when tightening screw head 713, gas-guide tube 711 and outer tube 712 It is fixed together；Flow controller 716 is used to control the introducing flow of gas to be detected, helps to maintain the steady of detection signal It is fixed.

As shown in figure 21, fixing sleeve 72 is hollow cylinder structure, and the lesser one end of diameter is set as head end, diameter compared with Big one end is set as tail end, and 72 head end of fixing sleeve is provided with external screw thread 724, and the internal screw thread of interface 263 is introduced under test gas It is used cooperatively, avoids influence of the external air flow to the chamber indoor gas of cavity 2 as far as possible；72 tail end of fixing sleeve be provided with it is vertical with it is horizontal To the through slot 723 of connection, the vertical section of through slot 723 is provided with combination screw hole 2 721 and fastening screw 2 722, fastening screw When 2 722 insertions are combined screw holes 2 721 and tightened, the tail end of fixing sleeve can be locked.

Preferably, gas-guide tube 711, heating tape 714 and instlated tubular 715 are set as flexible material or elastic material, Neng Goucheng By certain bending deformation, it is easily installed.When installation, first by 261 Unscrew of back shroud, and will be to be measured on back shroud 261 The Screw-thread sealing plug 8 that gas introduces on interface 263 is removed, then by the head of assembled gas sampling component 71 successively from fixing sleeve 72, under test gas is introduced at interface 263 and is passed into the chamber of cavity 2, and outer tube 712 is fixed on the chamber positioned at cavity 2 On second ion source fixed frame 47 of room lower part, so that the head of gas-guide tube 711 is located at the rotation that the second rotation adjusts component 46 On axis；It is fixed that the head end of fixing sleeve 72 is screwed under test gas introducing interface 263, and fastening screw 2 722 is inserted into combination spiral shell Hole 2 721 is simultaneously tightened, and the tail portion of fixing sleeve 72 is held tightly and fixes instlated tubular 715；After closing fixed back shroud 261, by flow Controller 716 is connected to the tail end of gas sampling component 71, and by 717 access flow controller 716 of mouthpiece.

When carrying out gas detection, characteristics of contaminated respiratory droplets gas is especially directly detected, to prevent cross-infection, mouthpiece 717 is adopted With Dispoable medical grade material, directly jettisoning is as medical waste processing after being finished.

It is assembled into the utility model enclosed type electric spray extraction ionization source device according to above-mentioned connection relationship with upper-part, it should Device uses enclosed construction, and ion source 5 is located in the chamber of seal cavity, shadow of the external environment to 5 ionization process of ion source Sound is small, and the device stability is high, is particularly suitable for gas componant detection；Electron spray adjustment module 3 and sample are sprayed adjustment module 4 The first ion source fixed frame 37 and the second ion source fixed frame 47 is respectively set, the ion source 5 being mounted on the first fixed frame 37 Tip and the head at 5 tip of ion source or gas sampling component 71 that is mounted on the second fixed frame 47 begin in rotary course Final position on the rotary shaft, the rotary motion of ion source 5 or gas sampling component 71 not will cause ion source tip or gas into The translational head of sample component 71 realizes that the wide-angle of ion source or gas sampling component is adjusted；Electron spray adjustment module 3 and sample Spraying adjustment module 4 is arranged in the opposite side of cavity 2, and the Plane of rotation of ion source 5 or gas sampling component 71 is vertical To plane, 2 lower part of cavity is provided with sewage draining exit 252, is convenient for blowdown；Upper cover plate 221, the lower cover plate 251 of cavity are convenient for tearing open Structure is unloaded, back shroud 261 is rotatable opening type structure, and the component convenient for the chamber interior to cavity 2 operates, user Just；By the terminal 2610 on mounting rear cover plate 261, power supply can be introduced in the chamber interior of cavity 2, met in chamber The demands such as heating, illumination；The observation of the first observation window 222, second is respectively set in the upper cover plate 221 and back shroud 261 of cavity 2 Window 262 and in each setting camera 6 of upper cover plate 221 and the first side cover plate 231, observes by the naked eye or camera 6 obtains Video, image observe position and the angle of ion source 5 or gas sampling component 71 and mass spectrograph injection port in real time, carry out coarse adjustment, And fine tuning is carried out according to spectrometer signal power, position, angular values after being adjusted in place pass through electron spray adjustment module 3 respectively Differential head scale, the angle index line being sprayed in adjustment module 4 with sample are read out, and realize that quantization is adjusted；The utility model Compact layout, each main member simple process, most of accessory is the standard component for being easy buying, thus cost is relatively low.

It will be appreciated by those skilled in the art that these embodiments are merely to illustrate the utility model, without limitation, this is practical new The range of type, the various equivalent variations and modification made to the utility model belong to the utility model the open scope.

Claims (10)

1. a kind of enclosed type electric spray extraction ionizes source device, including for installing mass spectrometric Complex interface component (1), EFI Mist adjustment module (3) and sample are sprayed adjustment module (4), which is characterized in that further include one for fixing Complex interface component (1), electron spray adjustment module (3) and sample are sprayed the cavity (2) of adjustment module (4), and cavity (2) is closed hollow frame knot Structure, including main body frame (21) and the upper surface of be separately mounted to main body frame (21), below, front, back, first side, Cover assembly (22), lower cover component (25), Complex interface component (1), the rear case component (26), the first side cover assembly of second side (23) and the second side cover assembly (24) formed closed chamber, electron spray adjustment module (3) and sample are sprayed adjustment module (4) It is separately mounted in the first side and second side of main body frame (21) and is symmetrical arranged, be mounted on electron spray adjustment module (3) and/or the ion source (5) that is sprayed on adjustment module (4) of sample is closed in the chamber of cavity (2), mass spectrograph injection port with The chamber of cavity (2) is connected.

2. enclosed type electric spray extraction according to claim 1 ionizes source device, which is characterized in that the cover assembly (22) the vertical lens supporting structure (223) for including a upper cover plate (221) and being fixed on upper cover plate (221), upper cover plate (221) it is mounted on the upper surface of main body frame (21), upper cover plate (221) is provided with see-through the first observation window (222), described perpendicular It is equipped with a camera (6) on straight lens supporting structure (223), camera (6) is located at the top of the first observation window (222).

3. enclosed type electric spray extraction according to claim 2 ionizes source device, which is characterized in that the lower cover component (25) include lower cover plate (251) and blowdown sealing plate (253), a sewage draining exit (252), sewage draining exit are provided on lower cover plate (251) (252) it is connected with the chamber of cavity (2), blowdown sealing plate (253) covering sewage draining exit (252) is simultaneously connect with lower cover plate (251).

4. enclosed type electric spray extraction according to claim 3 ionizes source device, which is characterized in that main body frame (21) First side and its first side cover assembly (23) and second side and its second side cover assembly (24) structure are identical and arranged symmetrically, Wherein, first side plate is installed in the first side of main body frame (21), is provided in first side plate and the chamber of cavity (2) The first through hole (235) that room is connected, the periphery of first through hole (235) are provided with the first groove (233), the first groove (233) It is inside placed with the first sealing plate (234), the rotation being equipped with for installing electron spray adjustment module (3) is provided on the first sealing plate (234) The first shaft hole (236) of shaft；First side cover assembly (23) includes the first side cover plate (231), and the first side cover plate is arranged on (231) There is the through-hole to match with first through hole (235)；Size of the size of first sealing plate (234) less than the first groove (233), and energy Enough to move freely in the first groove (233) with electron spray adjustment module (3), the first sealing plate (234) covers first through hole always (235)。

5. enclosed type electric spray extraction according to claim 4 ionizes source device, which is characterized in that electron spray adjustment module (3) it is sprayed adjustment module (4) with sample to be respectively equipped with the identical first ion source fixed frame (37) of structure and the second ion source solid Determine frame (47), the first ion source fixed frame (37) and the second ion source fixed frame (47) are separately mounted to electron spray adjustment module (3) it is sprayed in the rotary shaft of adjustment module (4) with sample；

First ion source fixed frame (37) includes the first cylindrical drum (371), the first circle of the first open circles column casing (372) and connection The first connecting rod (373) of column casing (371) and the first open circles column casing (372), first connecting rod (373) and the first cylindrical drum (371) central axis is at an acute angle, and the center of the central axis of the first open circles column casing (372) and the first cylindrical drum (371) Axis intersects vertically, and the opening of the first open circles column casing (372) is provided with the hold-fast body for extending vertically through opening both ends；First Cylindrical drum (371) is set in the rotary shaft of electron spray adjustment module (3), and the first open circles column casing (372) is set with ion source (5), the tip of ion source (5) is located on the central axes of rotary shaft.

6. enclosed type electric spray extraction according to claim 5 ionizes source device, which is characterized in that the rear case component It (26) include a back shroud (261) that back shroud (261) is provided with see-through the second observation window (262) and the first gas circuit and connects Head (265), the second gas path joint (266), power-up fluid path connector (267), fluid path connector (268) and terminal (2610)；

Ion source (5) on first ion source fixed frame (37) is located above the chamber of cavity (2), gas circuit pipe (53), fluid path (52) are managed to draw by the first gas path joint (265) of back shroud (261) top setting, power-up fluid path connector (267) respectively, the Ion source (5) on two ion source fixed frames (47) is located at below the chamber of cavity (2), gas circuit pipe (53), influidic pipe (52) The second gas path joint (266), the fluid path connector (268) being arranged respectively by back shroud (261) lower part are drawn；

Or the first ion source (5) on ion source fixed frame (37) is located at below the chamber of cavity (2), gas circuit pipe (53), Influidic pipe (52) is drawn by the first gas path joint (265) of back shroud (261) lower part setting, power-up fluid path connector (267) respectively Out, the ion source (5) on the second ion source fixed frame (47) is located above the chamber of cavity (2), gas circuit pipe (53), influidic pipe (52) the second gas path joint (266), the fluid path connector (268) being arranged respectively by back shroud (261) top are drawn.

7. enclosed type electric spray extraction according to claim 6 ionizes source device, which is characterized in that the back shroud (261) lower end is fixed on cavity (2) by a word axis rotating mechanism (269), and back shroud (261) can be rotated around a word axis Mechanism (269) rotation；The upper end of back shroud (261) is detachably arranged in behind main body frame (21).

8. enclosed type electric spray extraction according to claim 7 ionizes source device, which is characterized in that electron spray adjustment module It (3) further include a horizontal lens supporting structure (38) for being used for horizontal fixing camera (6), the first ion source fixed frame (37) is also It is provided with a Circular glass piece (374), Circular glass piece (374) is placed in the first cylindrical drum (371)；Camera (6) level is successively worn Cross horizontal lens supporting structure (38) setting second camera mounting hole (382) and hollow electron spray adjustment module (3) Rotary shaft, and extend at the Circular glass piece (374) in the first cylindrical drum (371) of the first ion source fixed frame (37).

9. ionizing source device according to the described in any item enclosed type electric spray extractions of claim 6 to 8, which is characterized in that described It is additionally provided with a under test gas on back shroud (261) and introduces interface (263), introduces external member (7) with a gas and is used cooperatively, to Introduce gaseous sample；It includes gas sampling component (71) that the gas, which introduces external member (7), the head of gas sampling component (71) from The under test gas of back shroud (261) introduces interface (263) and protrudes into the chamber of cavity (2), and is mounted on sample and adjusts mould by spraying On second ion source fixed frame (47) of block (4).

10. enclosed type electric spray extraction according to claim 9 ionizes source device, which is characterized in that gas sampling component (71) include gas-guide tube (711), be connected to the flow controller (716) of gas-guide tube (711) tail end and be connected to flow controller (716) for introducing the mouthpiece (717) of gas to be detected, gas-guide tube (711) is successively socketed with outer tube from head to tail portion (712), screw head (713) and heating tape (714), the periphery of heating tape (714) are also socketed with instlated tubular (715)；Gas-guide tube (711), heating tape (714) and instlated tubular (715) are flexible material or elastic material.