CN2190787Y - Electric ion analyzer - Google Patents
Electric ion analyzer Download PDFInfo
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- CN2190787Y CN2190787Y CN 94227111 CN94227111U CN2190787Y CN 2190787 Y CN2190787 Y CN 2190787Y CN 94227111 CN94227111 CN 94227111 CN 94227111 U CN94227111 U CN 94227111U CN 2190787 Y CN2190787 Y CN 2190787Y
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- separation vessel
- detecting device
- battery lead
- potential gradient
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Abstract
The utility model relates to an electric ion analyzer, comprising a separating system, a detector, an amplifying circuit, and a data processing unit. The utility model is characterized in that the separating system is composed of a program potential gradient generating device, a separator, and a liquid carrying bottle, wherein, the inner cavity of the separator is divided into working rooms through working membranes, and the left side and the right side working rooms are respectively provided with an electrode plate; a positive and a negative output ends of the program potential gradient generating device are respectively connected with the electrode plates; under the action of definite program potential gradient, the sample is carried into the detector to detect by the carrier liquid flowing from the liquid carrying bottle after the sample is separated through ion exchanging membranes. The hardware system of the utility model has the advantages of simple structure, low cost, high reliability, long service life, convenient and accurate detection, and wide applications.
Description
The utility model belongs to the chemical analysis field of analytic instrument, is a kind ofly to utilize difference such as ion-conductance polarity and electric charge, ionic radius and the different and electronic analyser of design of migration sees through in amberplex speed.
In the ion analysis application technology, the instrument that uses mainly contains two kinds at present: a kind of is that capillary ion analysis instrument (CIEA) (is seen " Capillary Electrophoresis application report monograph ", this chromatogram business department of Co., Ltd's water among the Mi Libo, in July, 1993).This analyser is to utilize ion migration velocity difference in kapillary inner high voltage electric field that ion is separated, and detects with detecting device then.Though it is that a kind of application is more extensive, analyser efficiently and fast, this instrument manufacturing cost height costs an arm and a leg, and makes the unable purchase of unit of a lot of needs.Another kind is ion chromatograph (IC) (seeing Mu Shifen, Liu Kailu work, " chromatography of ions ", Science Press, 1985).Ion chromatograph is to adopt the ion exchange resin separating column that ion is carried out adsorptive separation, utilizes detecting device to detect then.This instrument all has manufacturer production both at home and abroad.External this instrumental function of producing is more complete, but costs an arm and a leg, and because an instrument need be equipped with multiple chromatographic column, could analyze multiple different ion, and the life-span of chromatographic column is lacked (having only 1～2 year) in addition, thus on price more apparent costliness.Though domestic production is comparatively cheap on price, belongs to popular instrument, function is few, use to be not so good as external instrument conveniently, and the chromatographic column kind that can Gong select for use is few, can not satisfy each side again and measure needs.
Task of the present utility model is to provide a kind of new ion analyser for chemical analysis analyzing and testing field.This instrument hardware piece-rate system is simple in structure, lowering apparatus cost significantly, separation detection efficient height, convenient, accurately, reliable, widely applicable, can satisfy the demand of every field assay determination.
Task of the present utility model is finished by following technical solution.
The electronic ion analyser that the present technique solution is disclosed comprises piece-rate system, detecting device, amplifying circuit and data processing unit.Piece-rate system is to be made of program electric potential gradient generating means, separation vessel, carrier fluid bottle.The separation vessel inner chamber is divided into the operating room by working masks, the battery lead plate of interior dress is positioned at the operating room of the left and right sides, when the positive and negative output terminal of program electric potential gradient generating means links to each other with the battery lead plate that is positioned at the separation vessel inner chamber respectively, can apply different gradient current potentials according to sample, make battery lead plate produce electric polarity, move by working masks to attract the different ions in the sample.Because parameter differences such as the electric charge of each ion, radius, the speed of migration are also just different, thereby reach the purpose of isolating ions.Be distributed with inlet opening on the chamber wall of separation vessel inner chamber battery lead plate upside, the liquid in the inner chamber operating room adds by this hole, and the carrier fluid bottle links to each other with one of them inlet opening.Correspondence is distributed with fluid hole on the wall of the chamber of battery lead plate downside, and detecting device links to each other with one of them fluid hole.The inlet opening that links to each other with the carrier fluid bottle is positioned at same operating room with the fluid hole that links to each other with detecting device, and with in detachment process, the ion after the feeding carrier fluid will separate is carried in the detecting device and detects.The signal that sends after detecting device detects is amplifying circuit and the data processing unit by linking to each other in turn with detecting device successively, provides testing result.
Description of drawings:
Fig. 1 is each component part of the utility model anion analysis instrument and annexation synoptic diagram thereof; Fig. 2 is each component part of the utility model cation analysis instrument and annexation synoptic diagram thereof; Fig. 3 is the sectional structure synoptic diagram of separation vessel; Fig. 4 is the side-looking structural representation of separation vessel; Fig. 5 is a program electric potential gradient generating means schematic diagram.
Also the utility model is described in further detail to provide embodiment below in conjunction with accompanying drawing.
Embodiment one:
Present embodiment is electronic anion analysis instrument.It comprises piece-rate system, detecting device (24), amplifying circuit (30) and data processing unit (31), and wherein piece-rate system is again to be made of separation vessel (1), program electric potential gradient generating means (18), carrier fluid bottle (23), as shown in Figure 1.
Separation vessel (1) comprises separation vessel body, working masks (9,10) and battery lead plate (15).The separation vessel body is made of main board (2), isolating seal ring plate (3), fastening bolt (4), sees Fig. 3.Isolating seal ring plate (3) is a rectangle, and totally four, correspondence has inlet opening (5) and fluid hole (6) on the ring wall of each piece ring plate (3) two minor face.For convenience of liquid in-out, one end all is housed in each inlet opening (5) and the fluid hole (6) is trumpet-shaped liquid inlet and outlet pipe (7,8), its horn-like end is positioned at separation vessel (1) internal chamber wall that isolating seal ring plate (3) forms, and during use, is unlikely and comes off.During installation, all gripped working masks (9,10) between per two isolating seal ring plates (3).Main board (2) is made of two rectangular slabs, see Fig. 3,4, the both ends up and down of plate respectively have through hole, main board (2) is fixed in the opening two ends of the isolating seal ring plate (3) after the assembling arranged side by side by through hole with fastening bolt (4), also isolating seal ring plate (3) is fixedly clamped wherein simultaneously.Working masks (9,10) has two kinds, and the centre is a kind of to be the membrane stack that anion-exchange membrane (9) is formed, and both sides are auxiliary film (10).Working masks (9,10) is divided into four operating rooms (11,12,13,14) to inner chamber, and battery lead plate (15) is positioned at the operating room (11,14) of the left and right sides, sees Fig. 1,3.Battery lead plate (15) is a rectangular slab, and plate face one middle side part has a stem (16), and column end has screw thread.After stem (16) passes main board (2) middle part through hole in the separation vessel (1), cooperate by nut (17) and post (16) end thread just battery lead plate (15) to be fixed on the internal chamber wall of the interior both sides of separation vessel (1).Battery lead plate (15) is linked to each other respectively by the positive-negative output end of lead with program electric potential gradient generating means (18) by stem (16).
Program electric potential gradient generating means (18) is by D.C. regulated power supply (19), motor (20), machine governor (21), potentiometer R
1, R
2, R
3, and duplex synchronous switch K constitute, see Fig. 5.The positive and negative end of D.C. regulated power supply (19) is connected in the potentiometer R of three parallel connections by duplex synchronous switch K
1, R
2, R
3Two ends, wherein R
1Be rectilinear potentiometer, R
2, R
3Be the curvilinear motion potentiometer, the curvilinear motion potentiometer can be the index variation potentiometer or logarithm changes potentiometer.It is in order to adapt to different samples, so that measure fast, accurately that the different potentiometers that change are set.Motor (20) in the program electric potential gradient generating means (18) is a micromachine, and its input end links to each other with machine governor (21), output terminal potentiometer R in parallel with three
1, R
2, R
3Self-cleaning contact link to each other, and drive it and move to terminal point from initial point, this process required time, i.e. the rotating speed of motor (20) is according to determining the analysis time of sample.With the output terminal of the anodal duplex synchronous switch K that links to each other of D.C. regulated power supply (19) and the lead-out terminal (22) that the self-cleaning contact output terminal forms program electric potential gradient generating means (18) jointly.The positive pole of lead-out terminal (22) links to each other with the battery lead plate (15) on the interior right side of separation vessel (1) among Fig. 1, and negative pole links to each other with the battery lead plate (15) in left side.
Carrier fluid bottle (23) is a high-order bottle, be positioned at separation vessel (1) surface level top 〉=30 centimeters, the feed tube (7) that one of them operating room (13) that forms by conduit and anion exchange membrane stack (9) isolation communicates links to each other, as shown in Figure 1, promptly link to each other with the feed tube (7) that operating room, the right (13) communicate.When the negative ion in the specimen when come by anion exchange membrane stack (9) migration operating room, the left side (12), the carrier fluid that carrier fluid bottle (23) flows out just be carried into it in detecting device (24) so long and detect, to avoid using expensive infusion pump.
Detecting device (24) is an electric conductivity detector, it links to each other with a drain pipe (8) of separation vessel (1) by conduit, this drain pipe (8) all communicates with same operating room (13) with the feed tube (7) that links to each other with carrier fluid bottle (23), and lay respectively at the below or the top of separation vessel (1) chamber wall, see Fig. 1.
Amplifying circuit (30), data processing unit (31) link to each other with electric conductivity detector (24) in turn.Amplifying circuit (30) adopts the digital conductivity meter circuit, and data processing unit (31) adopts chromatographic data processor.Because digital conductivity meter circuit and all commercializations of chromatographic data processor, and all kinds of model is all available, so its circuit omits.
During test, at first should working fluid be added each operating room (11,12,13,14) respectively, then sample be injected operating room (12) by the feed tube (7) on the separation vessel (1).After sample enters operating room (12), negative ion is wherein promptly adsorbed by anion-exchange membrane (9), under by the effect that puts on certain program gradient current potential on the battery lead plate (15), the negative ion that is adsorbed enters operating room (13) by ion-exchange membrane stack (9) migration to the right gradually.Because parameter differences such as various anionic electric charges, radiuses, the speed of its migration also just has difference, separates anionic purpose thereby reach.After the negative ion that separates enters operating room (13), because auxiliary film (10) can stop negative ion to enter operating room (14), detect so promptly brought in the electric conductivity detector (24) that links to each other with below drain pipe (8) by the carrier fluid of carrier fluid bottle (23) inflow operating room (13).The detected signal of electric conductivity detector (24) amplifies through amplifying circuit (30), after data processing unit (31) is handled, and the output measurement result.Negative ion in the sample is then by the auxiliary film (10) in left side in the separation vessel (1), enters operating room (11) and discharges after the minus plate (15) that forms is gone up electrolysis.
Embodiment two:
Present embodiment is the electronic analyser of kation.It also comprises piece-rate system, detecting device (24), amplifying circuit (30) and data processing unit (31).Wherein piece-rate system also is to be made of separation vessel (1), program electric potential gradient generating means (18), carrier fluid bottle (23), as shown in Figure 2.Different with the electronic analyser of negative ion is: all be colourless characteristic according to most of metal cations 1., between the drain pipe (7) of separation vessel (1) and detecting device (24), be provided with a cover Color Appearance System, to detect metal cation and to improve the sensitivity that detects.This Color Appearance System comprises one a section reaction tube (27) and a developer bottle (28).Reaction tube (27) is arranged between drain pipe (8) and the detecting device (24), has passage (29) to link to each other with developer bottle (28) in the joint of reaction tube (27) and drain pipe (8).In order to guarantee chromogenic reaction fully and can reduce the space length of reaction tube (27) again, reaction tube (27) is selected coiled pipe for use.2. detecting device (24) is a photometric detector, in photometric detector (24) both sides monochromatic source (25) and photodiode (26) is housed respectively, and photodiode (26) links to each other with amplifying circuit (30).3. the amberplex in the separation vessel (9) is the membrane stack of cation-exchange membrane composition, and the auxiliary film of both sides (10) can stop kation to enter operating room (14), allows negative ion to enter operating room (11).4. the positive pole of program electric potential gradient generating means (18) lead-out terminal (22) links to each other with the battery lead plate (15) in the interior left side of separation vessel (1) among Fig. 2, and negative pole links to each other with the battery lead plate (15) on right side.5. amplifying circuit (30) adopts ultraviolet---visible spectrophotometer circuit, the most handy 752 types.Data processing unit (31) still adopts chromatographic data processor.Other structure and annexation are not stated so omit owing to identical with embodiment one.
During test, also should by the feed tube (7) on the separation vessel (1) working fluid be added each operating room (11,12,13,14) respectively earlier, then sample be injected operating room (12).After sample injects operating room (12), kation is wherein promptly adsorbed by cation-exchange membrane (9), under by the effect that puts on certain program gradient current potential on the battery lead plate (15), the kation that is adsorbed enters operating room (13) by ion-exchange membrane stack (9) migration to the right gradually.Because parameter differences such as various cationic electric charges, radiuses, the speed of its migration also just has difference, thereby reaches the purpose of separation.After the kation that separates enters operating room (13), because auxiliary film (10) can stop kation to enter operating room (14), so promptly taken out of drain pipe (8) by the carrier fluid of carrier fluid bottle (23) inflow operating room (13), mix with the developer that comes from passage (29) stream, after entering snakelike reaction tube (27) and finishing chromogenic reaction, flow in the photometric detector (24) and detect.Ion difference in the tested liquid, concentration difference, its absorbance difference, the light intensity difference of photodiode (26) impression.Photodiode (26) becomes the light signal of experiencing into electric signal and is defeated by amplifying circuit (30) amplification, data processing unit (31) processing, output measurement result.Negative ion in the sample then enters operating room (11) by the auxiliary film (10) in left side in the separation vessel (1), and discharges after the positive plate (15) that forms is gone up electrolysis.
The utility model is compared its major advantage to be had with prior art: 1. the instrument hardware system is simple, cheap. The price of every instrument be about external production the capillary ion analysis instrument 1/20th, be 1/25th of ion chromatograph (single function), and can be country and save a large amount of foreign exchanges; 2. because the instrument hardware system architecture is simple, so the reliability height of instrument, installation and measuring is convenient; 3. separate the detection efficiency height, measure accurately; 4. full machine does not have moving component, and the instrument life-span is long; 5. widely applicable, can detect dissimilar yin, yang ions, satisfy the needs of every field assay determination.
Claims (8)
1, a kind of electronic ion analyser, comprise piece-rate system, detecting device (24), amplifying circuit (30) and data processing unit (31), it is characterized in that piece-rate system is to be made of program electric potential gradient generating means (18), separation vessel (1), carrier fluid bottle (23).The positive-negative output end of program electric potential gradient generating means (18) links to each other with the battery lead plate (15) that is positioned at separation vessel (1) inner chamber both sides respectively; Separation vessel (1) inner chamber is divided into operating room (11,12,13,14) by working masks (9,10), and battery lead plate (15) is positioned at the operating room (11,14) of the left and right sides; On the chamber wall of inner chamber battery lead plate (15) upside, be distributed with inlet opening (5), carrier fluid bottle (23) links to each other with one of them inlet opening (5), correspondence is distributed with fluid hole (6) on the chamber wall of battery lead plate (15) downside, detecting device (24) links to each other with one of them fluid hole (6), and the inlet opening (5) that links to each other with carrier fluid bottle (23) is positioned at same operating room (13) with the fluid hole (6) that links to each other with detecting device (24); Amplifying circuit (30) links to each other with detecting device (24) in turn with data processing unit (31).
2, electronic ion analyser according to claim 1, it is characterized in that separation vessel (1) body is made of main board (2), isolating seal ring plate (3), fastening bolt (4), isolating seal ring plate (3) is a rectangle, totally four, open respectively on the ring wall of each piece ring plate (3) two minor face in liquid inlet and outlet hole (5,6), grips working masks (9,10) between per two isolating seal ring plates (3); Main board (2) is made of two rectangular slabs, through hole by plate (2) two ends is fixed in isolating seal ring plate (3) opening two ends with fastening bolt (4), and the battery lead plate (15) of separation vessel (1) the inner chamber both sides of formation links to each other with program electric potential gradient generating means (18) by the through hole in the middle part of the main board (2) and be positioned at thus.
3, electronic ion analyser according to claim 2, it is characterized in that battery lead plate (15) is a rectangular slab, plate face one middle side part has a stem (16), column end has screw thread, after stem (16) passes main board (2) middle part through hole, battery lead plate (15) is fixed on the internal chamber wall of the interior both sides of separation vessel (1) by nut (17) and post (16) end thread; Working masks (9), (10) of separation vessel (1) inner chamber have two kinds, and the centre is a kind of to be the membrane stack that amberplex (9) is formed, and both sides are auxiliary film (10); In the liquid inlet and outlet hole of separation vessel (1) (5,6) end is housed and is trumpet-shaped liquid inlet and outlet pipe (7), (8), a horn-like end is positioned at separation vessel (1) internal chamber wall; Carrier fluid bottle (23) links to each other with one of them feed tube (7) by conduit, and is positioned at separation vessel (1) surface level top 〉=30 centimeters.
4,, it is characterized in that program electric potential gradient generating means (18) is by D.C. regulated power supply (19), motor (20) machine governor (21), potentiometer R according to claim 1 or 2 or 3 described electronic ion analysers
1, R
2, R
3And duplex synchronous switch K formation, the positive and negative end of D.C. regulated power supply (19) is connected in the potentiometer R of three parallel connections by duplex synchronous switch K
1, R
2, R
3Two ends, wherein R
1Be rectilinear potentiometer, R
2, R
3Be the curvilinear motion potentiometer, motor (20) input end links to each other with machine governor (21), output terminal potentiometer R in parallel with three
1, R
2, R
3Self-cleaning contact link to each other, and drive it and move, the lead-out terminal (22) that forms program electric potential gradient generating means (18) jointly with anodal K switch output terminal that links to each other of D.C. regulated power supply (19) and self-cleaning contact output terminal.
5,, it is characterized in that detecting device (24) is an electric conductivity detector according to claim 1 or 2 or 3 described electronic ion analysers.
6, electronic ion analyser according to claim 4 is characterized in that detecting device (24) is an electric conductivity detector.
7, according to claim 1 or 2 or 3 described electronic ion analysers, it is characterized in that being provided with reaction tube (27) between separation vessel (1) drain pipe (8) that links to each other with detecting device (24) and the detecting device (24), have passage (29) to link to each other with developer bottle (28) in the joint of reaction tube (27) and drain pipe (8); Detecting device (24) is a photometric detector, in photometric detector (24) both sides monochromatic source (25) and photodiode (26) is housed respectively, and photodiode (26) links to each other with amplifying circuit (30).
8, electronic ion analyser according to claim 4, it is characterized in that being provided with reaction tube (27) between separation vessel (1) drain pipe (8) that links to each other with detecting device (24) and the detecting device (24), have passage (29) to link to each other with developer bottle (28) in the joint of reaction tube (27) and drain pipe (8); Detecting device (24) is a photometric detector, in photometric detector (24) both sides monochromatic source (25) and photodiode (26) is housed respectively, and photodiode (26) links to each other with amplifying circuit (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227111 CN2190787Y (en) | 1994-01-27 | 1994-01-27 | Electric ion analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227111 CN2190787Y (en) | 1994-01-27 | 1994-01-27 | Electric ion analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2190787Y true CN2190787Y (en) | 1995-03-01 |
Family
ID=33839923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94227111 Expired - Fee Related CN2190787Y (en) | 1994-01-27 | 1994-01-27 | Electric ion analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2190787Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326794A (en) * | 2022-08-23 | 2022-11-11 | 浙江西热利华智能传感技术有限公司 | Trace iron ion detection system and method based on electrochemical treatment |
-
1994
- 1994-01-27 CN CN 94227111 patent/CN2190787Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326794A (en) * | 2022-08-23 | 2022-11-11 | 浙江西热利华智能传感技术有限公司 | Trace iron ion detection system and method based on electrochemical treatment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |