CN207868163U - The wide mass range time of-flight mass spectrometer of dynamic scan - Google Patents
The wide mass range time of-flight mass spectrometer of dynamic scan Download PDFInfo
- Publication number
- CN207868163U CN207868163U CN201721743625.2U CN201721743625U CN207868163U CN 207868163 U CN207868163 U CN 207868163U CN 201721743625 U CN201721743625 U CN 201721743625U CN 207868163 U CN207868163 U CN 207868163U
- Authority
- CN
- China
- Prior art keywords
- faraday
- ion
- electrode
- flight
- dynamic scan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 238000001819 mass spectrum Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 description 56
- 238000001514 detection method Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000010852 klinokinesis Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001269 time-of-flight mass spectrometry Methods 0.000 description 1
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The utility model provides a kind of wide mass range time of-flight mass spectrometer of dynamic scan comprising：Ion Extraction electrode, Ion Extraction lens, flying time mass spectrum analysis device, MCP ion detectors, first faraday's reception device, second faraday's reception device and Lee's Sa such as electrode.The wide mass range time of-flight mass spectrometer of the dynamic scan of utility model improves the range of mass of ion Concentration Testing, and can solve the blind area generated when correction, and can effectively reduce the decaying of MCP.
Description
Technical field
The utility model is related to a kind of flights of the wide mass range of mass spectrum detection field more particularly to dynamic scan
Time mass spectrum instrument.
Background technology
Time of-flight mass spectrometer (time-of-flight mass spectrometer, TOFMS) exists according to different ions
The size of true airborne hours judges its mass-to-charge ratio, and analyze speed is fast, and can carry out the detection of single charge.However, existing
Some time of-flight mass spectrometers cannot be in the same detection cycle, while measuring the identical ion of two mass-to-charge ratioes, therefore
For the big component of concentration, when multiple ions reach detector simultaneously in the very short time, detector may think that only
One ion, this results in the error of prodigious measurement.Therefore, in view of the above-mentioned problems, it is necessary to propose further solution party
Case.
Utility model content
The utility model is intended to provide a kind of wide mass range time of-flight mass spectrometer of dynamic scan, to overcome existing skill
It is insufficient present in art.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of wide mass range time of-flight mass spectrometer of dynamic scan comprising：Ion Extraction electrode, Ion Extraction are saturating
Mirror, flying time mass spectrum analysis device, MCP ion detectors, the mass spectrograph further include：First faraday's reception device, second
Faraday's reception device and Lee's Sa such as electrode；
The flying time mass spectrum analysis device includes：Introduce repulsion electrode, accelerating region, field-free flight area, first method
Reception device is drawn to be set to the downstream position for introducing repulsion electrode, the first faraday reception device has several gold
Belong to substrate, in the field-free flight areas as described in being set to electrode the Li Sa, the Li Sa such as electrodes include：First be oppositely arranged
Pole plate and the second pole plate being oppositely arranged, first pole plate and the second pole plate surround the channel of ion flight, described to set relatively
It is applied with+V respectively on the first pole plate setxcos(w1And-V t)xcos(w1T) voltage, second pole plate being oppositely arranged
It is upper to be applied with+V respectivelyycos(w2T+ φ) and-Vycos(w2T+ φ) voltage, the second faraday reception device includes method
The barrel is drawn, the MCP ion detectors are set in faraday's bucket.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, described first farad
Reception device further includes felt pad, and several metal substrates are equally spaced on the felt pad.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, the felt pad are
Teflon insulation pad.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, the Li Sa such as electricity
Pole further includes shielding shell, and the shielding shell has the inlet and outlet of perforation setting, first pole plate and the second pole plate
It is set on the madial wall of the shielding shell.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, the shielding shell
For rectangular shape, first pole plate is set on two madial walls being oppositely arranged inside the cuboid, and described second
Pole plate is set on other two madial wall being oppositely arranged inside the cuboid.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, the flight time
Mass spectrometer further includes echo area, and the Li Sa such as electrode are located at the side in the field-free flight area, through the echo area
The ion of reflection reaches second faraday's reception device by the Li Sa such as electrodes.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, described second farad
Reception device and MCP ion detectors carry out equivalent relation correction as follows：From ion source sample introduction calibrating gas G10,
So that ion major part is fallen on MCP ion detectors, records the peak area A of corresponding acquisition0, start Lee's Sa such as electrode, make from
Sub- major part is fallen on faraday's bucket, records corresponding quantity of electric charge Q0, obtain equivalent relation G10=KA0=BQ0, wherein A, B be
The equivalent parameters mutually converted.
The improvement of the wide mass range time of-flight mass spectrometer of dynamic scan as the utility model, the mass spectrograph is also
Period corresponding peak intensity for obtaining such as electrode work of Lee's Sa according to the equivalent relation, and peak intensity is modified,
Correction formula is：
Hm'=Hm(1+A/(H0+…+Hn))；
Wherein, Hm' it is revised peak intensity, H0…HnFor the period T of Lee's Sa such as electrode work0、T1。。。TnCorresponding peak
Intensity, the quantity of electric charge that A=Q*B/K, Q are received by Faraday cup in the unit time, K are the peak area of calibrating gas.
Compared with prior art, the utility model has the beneficial effects that：The wide quality model of the dynamic scan of the utility model
It encloses time of-flight mass spectrometer and improves the range of mass of ion detection, and the blind area generated when correction can be solved, and can have
The decaying of MCP when effect reduces ion detection.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments described in the utility model, for those of ordinary skill in the art, is not making the creative labor
Under the premise of, other drawings may also be obtained based on these drawings.
Fig. 1 is the flat of wide one specific implementation mode of mass range time of-flight mass spectrometer of the dynamic scan of the utility model
Face schematic diagram；
Fig. 2 is the stereogram schematic diagram of first faraday's reception device in Fig. 1；
Fig. 3 is the stereogram schematic diagram of Li Sa such as electrodes in Fig. 1；
Fig. 4 is the stereogram schematic diagram of second faraday's reception device in Fig. 1；
The original that Fig. 5 generates for control signal in the wide mass range time of-flight mass spectrometer of the dynamic scan of the utility model
Reason figure；
Fig. 6 is the signal graph that is sequentially generated of the zone of saturation according to the time.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the wide mass range time of-flight mass spectrometer of the dynamic scan of the utility model is based on different Lee
The ratio that Sa Ru figures fall on MCP ion detectors in particle is different, and then realizes that the size at the peak excessively high to abundance is controlled
System.
The wide mass range time of-flight mass spectrometer of the dynamic scan includes：Ion Extraction electrode 1, Ion Extraction lens
2, flying time mass spectrum analysis device, MCP ion detectors, first faraday's reception device 3, second faraday's reception device 4 with
And Lee's Sa such as electrode 5.Wherein, MCP ion detectors are microchannel plate ion detector.
For realizing the introducing of detection ion, the two is set to described for the Ion Extraction electrode 1 and Ion Extraction lens 2
Flying time mass spectrum analysis device inlet.
The flying time mass spectrum analysis device includes：Introduce repulsion electrode 6, accelerating region 7, field-free flight area 8, echo area 9.
The repulsion electrode 6 that introduces receives the detection ion introduced by the Ion Extraction electrode 1 and Ion Extraction lens 2, through institute
The detection ion for stating 6 repulsion of introducing repulsion electrode is arrived through the accelerating region 7, field-free flight area 8, echo area 9, field-free flight area 8
Up to the MCP ion detectors.
As shown in Fig. 2, the first faraday reception device 3 is set to the downstream position of the introducing repulsion electrode 6,
For judging whether charge is parallel to repulsion electrode 6, at the same be additionally operable to the total amount of the ion entered from ion source into
Row judges.Specifically, the first faraday reception device 3 has several metal substrates 31, in one embodiment, described
First faraday's reception device 3 further includes felt pad 32, and several metal substrates 31 are equally spaced in the felt pad
On 32, and it is arranged towards detection ion.Preferably, the felt pad 32 is teflon insulation pad.
Voltage of the Li Sa such as electrodes 5 for applying mechanical periodicity in the x, y direction, so that detection ion is not
Same X, when Y-direction phase difference, the track left on MCP ion detectors is different.Meanwhile more complicated distribution can lead to
Adjustment phase difference is crossed to realize.
Specifically, in the field-free flight areas 8 as described in being set to electrode 5 the Li Sa, the Li Sa such as electrodes 5 include：Phase
To the first pole plate of setting and the second pole plate being oppositely arranged.Wherein, first pole plate and the second pole plate surround ion flight
Channel, be applied with+V respectively on first pole plate being oppositely arrangedxcos(w1And-V t)xcos(w1T) voltage, the phase
To being applied with+V respectively on the second pole plate of settingycos(w2T+ φ) and-Vycos(w2T+ φ) voltage.
As shown in figure 3, in one embodiment, the Li Sa such as electrodes 5 further include shielding shell 51, outside the shielding
There is shell the inlet and outlet of perforation setting, first pole plate, 52 and second pole plate 53 to be set to the interior of the shielding shell 51
On side wall.Preferably, the shielding shell 51 is rectangular shape, and first pole plate 52 is set to phase inside the cuboid
To on two madial walls of setting, second pole plate 53 is set to other two inside being oppositely arranged inside the cuboid
On wall.
Further, in order to enable the detection ion reflected by the echo area 9 enters to the Li Sa such as electrodes 5
In, the Li Sa such as electrode 5 are located at the side in the field-free flight area 8, to, through the accelerating region 7 accelerate detection from
Son, after the reflection by the echo area 9, klinokinesis direction is injected in Lee's Sa such as electrode 5.
As shown in figure 4, the ion reflected through the echo area 9 reaches described second farad by the Li Sa such as electrodes 5
Reception device 4.Wherein, the second faraday reception device 4 includes faraday's bucket 41, the MCP ion detectors setting
In faraday bucket 41.In one embodiment, the first faraday reception device 3 further includes felt pad 42, institute
Faraday's bucket 41 is stated to be set on the felt pad 42.Preferably, the felt pad 42 is teflon insulation pad.
In addition, faraday's bucket 41 is combined due to being counted with PA.Measurement period is the integral of 1S, i.e. on a spectrogram Faraday cup
The particle charging of reception.Above-mentioned charge is abundance is excessively high in spectrogram particle without hitting to the part on MCP, finally by these
Charge distributes to the specific peak for going repulsion according to the ratio of spectrogram.For example, tri- peaks A1, A2, A3 need repulsion, pair of Ai
The peak height answered is Hi.At this point, the charge SF that Faraday cup 1S is integrated.To which the peak of Ai should be adjusted to Hi+SF*Hi/ (H1+H2
+H3)。
When the second faraday reception device 4 and its inside MCP ion detectors work, equivalent relation is carried out first and is rectified
Just.Specifically, from the calibrating gas G of ion source sample introduction 10ppm10；So that ion major part is fallen on MCP ion detectors, remembers
The peak area A of the corresponding acquisition of record0；Start Lee's Sa such as electrode, so that ion major part is fallen on faraday's bucket, record corresponding electricity
Lotus amount Q0.Equivalent relation G is obtained according to three10=KA0=BQ0；Wherein A, B are the equivalent parameters mutually converted.
As shown in figure 5, then generating control signal.Specifically, first spectrogram is acquired, if not finding saturation part
Switching sequence figure is not generated then.Amplifying circuit does not work, and the signal of the generation of Li Saru signal generators cannot be applied to Li Sa
On electrode.
As shown in fig. 6, if it find that saturation, calculates analysis and is believed according to the switch of time being sequentially generated zone of saturation
Number, when wherein signal is high level, amplifying circuit work applies the waveform (wave wherein all the way of Fig. 6 on Lee's Sa such as electrode
Shape).Due to the non-same clock of the clock of Lee's Sa such as signal generator and mass spectrum pulse generator, the two has certain random
Difference, above-mentioned random difference make each part being deflected in the Li Saru periods.
Finally, synthesized spectra.Specifically, as excessively without saturation peak, spectrogram is former spectrogram；If there is saturation peak, pass through
Control process, the charge collected in faraday's bucket unit interval at this time are Q；Corresponding peak face can be calculated according to equivalent relation
Product is A=Q*B/K；By the period T for being saturated such as electrode work of calculated Lee's Sa0、T1。。。TnCorresponding peak intensity H0、
H1……Hn, proportionally distributed.
The mass spectrograph is additionally operable to obtain Lee's Sa such as electrode each working hour corresponding amendment peak according to the equivalent relation
The correction formula of intensity, peak intensity is：
Hm'=Hm(1+A/(H0+…+Hn))；
Wherein, Hm' it is revised peak intensity, H0…HnFor the period T of Lee's Sa such as electrode work0、T1。。。TnCorresponding peak
Intensity, the quantity of electric charge that A=Q*B/K, Q are received by Faraday cup in the unit time, K are the peak area of calibrating gas.
For example, m-th of working hour revised intensity is：
Hm'=Hm(1+A/(H0+…+Hn))
That is TmThe numerical value of period is all modified to original (1+A/ (H0+…+Hn))。
Therefore, because obtain concentration value, MCP collection values and the quantity of electric charge equivalent relation, so as to easily indicate
Go out concentration spectrum, improves mass spectrometric adaptability.
When the wide mass range time of-flight mass spectrometer work of the dynamic scan of the utility model：
Apply voltage on the Ion Extraction electrode, the first faraday reception device is collected draws by the ion
Go out the detection ion of lens；
The detection ion collected through the first faraday reception device passes through behind the accelerating region, field-free flight area
In the Li Sa such as electrodes, the Li Sa such as electrode, it is applied with+V respectively on the first pole plate for being oppositely arrangedxcos(w1T) and-
Vxcos(w1T) voltage is applied with+V on the second pole plate being oppositely arranged respectivelyycos(w2T+ φ) and-Vycos(w2T+ φ)
Voltage；
By the detection ion of the Li Sa such as electrodes, the MCP ions are reached through the second faraday reception device
Detector.
Further, the wide mass range time of-flight mass spectrometer of the dynamic scan of the utility model also sentences kurtosis
It is disconnected, when for undersaturated condition, without processing；When for a small amount of peak saturation state, the position that a small amount of peak occurs is analyzed, and close
At scanning electric field；When for a large amount of peak saturation states, ignore small signal.
To which by the processing of the small signal, the corresponding part in high concentration peak, resolution ratio can be affected to some extent.
The dynamic range that certain resolution ratio obtains bigger is sacrificed at this time, and the service life for extending MCP should be acceptable.Other parts
Due to closing scanning electric field, without the influence of any horizontal component of electric field, resolution ratio will not be had an impact.Due to Lee's Sa such as electrode
Mounted on field-free flight area, and electric field is kept in the horizontal direction, even if in hight-concentration parts, it will not be to the speed of vertical direction
It has an impact.
In addition, the wide mass range time of-flight mass spectrometer of the dynamic scan of the utility model is additionally operable to carry out equivalent relation
Correction.Specifically, from the calibrating gas G of ion source sample introduction 10ppm10；Ion major part is set to fall on MCP ion detectors,
The peak area A of the corresponding acquisition of record0；Start Lee's Sa such as electrode, so that ion major part is fallen on faraday's bucket, record corresponding
Quantity of electric charge Q0.Equivalent relation G is obtained according to three10=KA0=BQ0；Wherein A, B are the equivalent parameters mutually converted.
The wide mass range time of-flight mass spectrometer of the dynamic scan of the utility model is additionally operable to according to the equivalent relation
Lee's Sa such as electrode each working hour corresponding amendment peak intensity is obtained, the correction formula of peak intensity is：
Hm'=Hm(1+A/(H0+…+Hn))；
Wherein, Hm' it is revised peak intensity, H0…HnFor the period T of Lee's Sa such as electrode work0、T1。。。TnCorresponding peak
Intensity, the quantity of electric charge that A=Q*B/K, Q are received by Faraday cup in the unit time, K are the peak area of calibrating gas.
In conclusion the wide mass range time of-flight mass spectrometer of the dynamic scan of the utility model improves mass of ion
The range of detection, and the blind area that generates when correction can be solved, and decaying when can effectively reduce ion detection.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of wide mass range time of-flight mass spectrometer of dynamic scan comprising：Ion Extraction electrode, Ion Extraction are saturating
Mirror, flying time mass spectrum analysis device, MCP ion detectors, which is characterized in that the mass spectrograph further includes：First faraday connects
Receiving apparatus, second faraday's reception device and Lee's Sa such as electrode；
The flying time mass spectrum analysis device includes：Introduce repulsion electrode, accelerating region, field-free flight area, first faraday
Reception device is set to the downstream position for introducing repulsion electrode, and the first faraday reception device has several Metal Substrates
Plate, in the field-free flight areas as described in being set to electrode the Li Sa, the Li Sa such as electrodes include：The first pole plate being oppositely arranged
With the second pole plate being oppositely arranged, first pole plate and the second pole plate surround the channel of ion flight, described to be oppositely arranged
It is applied with+V respectively on first pole platexcos(w1And-V t)xcos(w1T) voltage, on second pole plate being oppositely arranged point
+ V is not applied with itycos(w2T+ φ) and-Vycos(w2T+ φ) voltage, the second faraday reception device includes faraday
Bucket, the MCP ion detectors are set in faraday's bucket.
2. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 1, which is characterized in that described
One faraday's reception device further includes felt pad, and several metal substrates are equally spaced on the felt pad.
3. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 2, which is characterized in that described exhausted
Edge pad is teflon insulation pad.
4. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 1, which is characterized in that Lee
Sa such as electrode further includes shielding shell, and the shielding shell has the inlet and outlet of perforation setting, first pole plate and the
Two pole plates are set on the madial wall of the shielding shell.
5. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 4, which is characterized in that the screen
It is rectangular shape to cover shell, and first pole plate is set on two madial walls being oppositely arranged inside the cuboid, institute
The second pole plate is stated to be set on other two madial wall being oppositely arranged inside the cuboid.
6. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 1, which is characterized in that described to fly
Row time mass spectrum analyzer further includes echo area, and the Li Sa such as electrode are located at the side in the field-free flight area, through described
The ion of echo area reflection reaches second faraday's reception device by the Li Sa such as electrodes.
7. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 1, which is characterized in that described
Two faraday's reception devices and MCP ion detectors carry out equivalent relation correction as follows：From ion source sample introduction standard
Gas G10, so that ion major part is fallen on MCP ion detectors, record the peak area A of corresponding acquisition0, start Lee's Sa such as electricity
Pole makes ion major part fall on faraday's bucket, records corresponding quantity of electric charge Q0, obtain equivalent relation G10=KA0=BQ0,
Middle A, B are the equivalent parameters mutually converted.
8. the wide mass range time of-flight mass spectrometer of dynamic scan according to claim 7, which is characterized in that the matter
Spectrometer is additionally operable to obtain Lee's Sa such as electrode each working hour corresponding amendment peak intensity according to the equivalent relation, and peak intensity is repaiied
Positive formula is：
Hm'=Hm(1+A/(H0+…+Hn))；
Wherein, Hm' it is revised peak intensity, H0…HnFor the period T of Lee's Sa such as electrode work0、T1…TnCorresponding peak intensity,
The quantity of electric charge that A=Q*B/K, Q are received by Faraday cup in the unit time, K are the peak area of calibrating gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721743625.2U CN207868163U (en) | 2017-12-14 | 2017-12-14 | The wide mass range time of-flight mass spectrometer of dynamic scan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721743625.2U CN207868163U (en) | 2017-12-14 | 2017-12-14 | The wide mass range time of-flight mass spectrometer of dynamic scan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207868163U true CN207868163U (en) | 2018-09-14 |
Family
ID=63469035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721743625.2U Withdrawn - After Issue CN207868163U (en) | 2017-12-14 | 2017-12-14 | The wide mass range time of-flight mass spectrometer of dynamic scan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207868163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978508A (en) * | 2017-12-14 | 2018-05-01 | 阜阳师范学院 | The wide mass range time of-flight mass spectrometer and detection method of dynamic scan |
| CN111198306A (en) * | 2020-02-07 | 2020-05-26 | 清华大学 | Solid-liquid friction electrification charge measuring device |
-
2017
- 2017-12-14 CN CN201721743625.2U patent/CN207868163U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978508A (en) * | 2017-12-14 | 2018-05-01 | 阜阳师范学院 | The wide mass range time of-flight mass spectrometer and detection method of dynamic scan |
| CN107978508B (en) * | 2017-12-14 | 2024-04-19 | 阜阳师范学院 | Dynamic scanning wide-mass-range time-of-flight mass spectrometer and detection method |
| CN111198306A (en) * | 2020-02-07 | 2020-05-26 | 清华大学 | Solid-liquid friction electrification charge measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Coates | The origins of afterpulses in photomultipliers | |
| CN101789355B (en) | Time-of-flight mass spectrometer with wide dynamic range, implementation method and application thereof | |
| CN103053005B (en) | Generate the method and apparatus of mass spectrometric data | |
| CN101578684A (en) | Electrostatic ion trap | |
| KR102186789B1 (en) | Secondary ion mass spectrometry and secondary ion mass spectrometry method | |
| JP2012069318A (en) | Tandem time-of-flight mass spectrometry and spectrometer | |
| Kolhinen et al. | Double-β decay Q value of Nd 150 | |
| CN105378891B (en) | Time of-flight mass spectrometer with Cassini reflectors | |
| Schultze et al. | Spatially resolved measurement of ionization yields in the focus of an intense laser pulse | |
| US8653451B2 (en) | Apparatus and method for time-of-flight mass spectrometry | |
| CN207868163U (en) | The wide mass range time of-flight mass spectrometer of dynamic scan | |
| GB2460165A (en) | Fragmentation of ions in Kingdon ion trap mass spectrometers | |
| Stults et al. | Mass spectrometry/mass spectrometry by time-resolved magnetic dispersion | |
| Coles et al. | Resolution limitations from detector pulse width and jitter in a linear orthogonal-acceleration time-of-flight mass spectrometer | |
| Hu et al. | A position-sensitive coincidence spectrometer to image the kinematics of the bimolecular reactions of molecular dications | |
| Borovik et al. | Electron impact ionization of ground-state and metastable Li+ ions | |
| CN109755096B (en) | Screening type time-of-flight mass spectrometer and detection method | |
| CN104237659A (en) | In-situ measurement device and method for space charges of dielectric material under electron irradiation | |
| Swanson et al. | Resonant structure in near-threshold electron excitation of krypton | |
| EP0270232A1 (en) | Apparatus and method for the control and/or analysis of charged particles | |
| CN107978508A (en) | The wide mass range time of-flight mass spectrometer and detection method of dynamic scan | |
| US8525110B2 (en) | Wind ion neutral composition apparatus | |
| Daly et al. | Detector for the metastable ions observed in the mass spectra of organic compounds | |
| GB767527A (en) | Improvements in or relating to mass spectrometer and electron multiplier arrangements | |
| RU2293396C1 (en) | Method and device for separating charged particles by their specific charge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180914 Effective date of abandoning: 20240419 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180914 Effective date of abandoning: 20240419 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |