CN101819179B - Single-pipe double-chamber suction test paper dual-sampling cation and anion mobility spectrum dual measuring pipe - Google Patents
Single-pipe double-chamber suction test paper dual-sampling cation and anion mobility spectrum dual measuring pipe Download PDFInfo
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- CN101819179B CN101819179B CN201010137871.XA CN201010137871A CN101819179B CN 101819179 B CN101819179 B CN 101819179B CN 201010137871 A CN201010137871 A CN 201010137871A CN 101819179 B CN101819179 B CN 101819179B
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Abstract
The invention aims to provide a single-pipe double-chamber suction test paper dual-sampling cation and anion mobility spectrum dual measuring pipe. A sample injector has a slit-shaped flat injection port, and the injection port generates a negative pressure under the action of a sampling pump so that air in the front can be absorbed into the sample injector and a piece of analysis test paper can be inserted into the sample injector to extract substances adhered to the test paper after the test paper is scrubbed. A first ionic emigration area and a second ionic emigration area are arranged in a mobility spectrum measuring tube body, so the dual measurement of the cations and anions of different substances such as poisons and explosives can be completed with high sensitivity in real time, a plurality of mixed substances can be analyzed and a large number of contraband wares can be compared simultaneously. The single-pipe double-chamber suction test paper dual-feeding cation and anion mobility spectrum dual measuring pipe has novel design, a rational structure and multiple functions and realizes the aim of the invention.
Description
Technical field
The present invention relates to a kind of ion mobility and measure pipe; Be particularly related to the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum that a kind of negative ions that the drugs explosive is adhered to separately carries out the ion mobility spectrometry species analysis simultaneously, belong to the species analysis technical field.
Background technology
Existing ion mobility is measured pipe, and great majority are mensuration pipes that the list of monomer is surveyed positive ion or negative ion mobility, processes negative ion was only surveyed or only be directed against to instrument to the drugs of positive ion explosive detection, and function all is single; If desired suspicious specimen is surveyed positive ion and negative ion mobility simultaneously; When whether judgement sample is drugs or explosive; Need two different instruments to carry out positive ion and the test of negative ion mobility respectively; Trouble very meets the sample that needs to detect seldom the time, also can not accomplish to carry out respectively positive ion and negative ion mobility and test; In addition; Adopted in addition to add positive high voltage in turn on the monomer pipe and negative high voltage time switching mode alternately surveys the mobility of positive ion and negative ion,, added the positive negative pulse stuffing high pressure at a same migration area of measuring pipe though can accomplish to survey drugs and explosive at the separate unit instrument; The negative ions motion interferes with each other serious; Different primary standard substances are demarcated difficulty, and noise is big, and is influential to trace measurement sensitivity; Also have the measured ion mass-to-charge ratio drift tube of a kind of DMS of being called in the electric field of pulse upset, to add the drift characteristic that different bias voltages can be surveyed negative ions; But mechanism has not been to survey the migration spectral property of substance ion, and can not survey so much drugs or explosive owing to can not arrange too much bias voltage in the one-period.
At present; Existing analytical instrument injector is most forms complicated multiple component system with testing sensor; Injector that can the heating and gasifying sample does not comprise analysis by absorption of gases and the test paper analysis is accomplished through an injection port; And air-breathing carrier gas is fed back to injection port be made of one, lacks compact efficiently one suction test paper pair injectors with the absorption that increases sample; The test component that other places also do not have material negative ions mobility to detect and the two sample introductions of reaction type suction test paper are made of one.
Summary of the invention
The object of the present invention is to provide the two pipes of surveying of a kind of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum, overcome above-mentioned shortcoming of the prior art, realize drugs explosive continuous probe simultaneously.
The technical matters that the present invention solved can adopt following technical scheme to realize:
The two pipes of surveying of a kind of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum; It comprises a migration spectrometry body; It is characterized in that; The front end of said migration spectrometry body is provided with the injector that can realize that sample analysis by absorption of gases and test paper wiping are analyzed; Be provided with the first ion migration area and the second ion migration area that are respectively applied for positive ion and the detection of negative ion mobility in the said migration spectrometry body; The rear end of said injector is communicated with the front end of the said first ion migration area and the second ion migration area through a bilateral trunnion; Be provided with first ionization chamber between the rear end of the front end of the said first ion migration area and said bilateral trunnion; Be provided with second ionization chamber between the rear end of the front end of the said second ion migration area and said bilateral trunnion, the front end of the said first ion migration area and the second ion migration area is provided with electromotive force migration door, and the rear end of the said first ion migration area and the second ion migration area is provided with the ion collection dish; Said ion collection dish is communicated with the signal output part that is arranged on said migration spectrometry body rear end through the ion flow detecting device; The said first ionization chamber travel district and the second ionization chamber travel district respectively are provided with one group of electrode needle, and an end of said electrode needle is arranged in the said first ionization chamber travel district and the second ionization chamber travel district, and the other end of said electrode needle is communicated with the voltage of electric field of test positive ion and test negative ion through contact conductor.
In one embodiment of the invention, the front end of said injector is provided with the flat injection port of a single narrow slit, said injector be provided with one with the valve that is connected of end of bleeding of sampling pump; When sampling pump is worked; Be negative pressure in the injection port of said injector; Gas gets into the analysis by absorption of gases that narrow slit is realized sample before extracting injection port, and with the narrow slit that inserts injection port after the suitable big or small test paper wipe samples, realizes that injector extracts the sample introduction analysis that test paper adheres to sample.
Further, in said injector, also be provided with a feedback tracheae, the rear end of said feedback tracheae is connected with the exhaust end of said sampling pump, and the front end of said feedback tracheae is provided with and brushes mouth, and the said mouth that brushes is arranged on said injection port below; Provide remaining sample gas secondary to suck and brush object surface to help to draw particulate samples, improve sample introduction efficiency.
In one embodiment of the invention, said injector adopts metal or high thermal conduc tivity ceramics to make, and the outer setting of said injector is wound with the constantan heating plate and wraps up in applies high-temperature-resistant thermal-insulation material heating heat-insulation layer; Energising is heated to the high temperature that can resolve air atom and gasification test paper sample and forms sample air when analyzing, and carries out the ionization analysis.
In one embodiment of the invention, be provided with the filtering membrane that is used to deaden dust steam between said injector rear end and the said bilateral trunnion; The injector air motion can be oppressed filtering membrane to carry sample gas and to get into the first ion migration area and the second ion migration area through filtering membrane from the bilateral trunnion, and the bilateral trunnion makes the sample air even entering first ion migration area and the second ion migration area carry out ion mobility and detects.
In one embodiment of the invention, said injector is fixed on the front end of said migration spectrometry body through a set collar.
In one embodiment of the invention, the external packets at said migration spectrometry body is covered with the heat tracing cover.
In one embodiment of the invention, said contact conductor is communicated with the voltage of electric field of test positive ion and test negative ion through the electric field high-voltage plug.
The two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum of the present invention; Injector has the flat injection port of slit injection port under the sampling pump effect to produce negative pressure, can draw front gas and get in the injector, can insert analysis test paper again and extract the attachment material on the test paper after the wiping, is provided with the first ion migration area and the second ion migration area in the migration spectrometry body; Accomplish the dual test of dissimilar material negative ions such as drugs explosive in real time; Highly sensitive, can analyze many materials, the comparison big quantity contraband goods storehouse of mixing simultaneously, novel in design, rational in infrastructure; Multiple functional, realize the object of the invention.
Characteristics of the present invention can consult this case graphic and below better embodiment detailed description and obtain to be well understood to.
Description of drawings
Fig. 1 is the two structural representations of surveying pipe of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum of the present invention;
Fig. 2 is the two inner structure synoptic diagram of surveying pipe of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum of the present invention;
Fig. 3 is the two front schematic view of surveying pipe of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Like Fig. 1, shown in Figure 2; The two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum of the present invention; It comprises a migration spectrometry body 100, and the front end of migration spectrometry body 100 is provided with injector 200, is provided with signal output part 300 in migration spectrometry body 100 rear ends.
In the present embodiment, the front end of injector 200 is provided with the flat injection port 210 of a single narrow slit, and the slit of injection port 210 is convenient to insert analysis test paper, injector 200 be provided with one with the valve 220 that is connected of end of bleeding of sampling pump; When sampling pump is worked; Make through the injector air gap channel 230 that communicates with injection port 210 in the injection port 210 of injector 200 and be negative pressure; Reach the effect that injection port 210 preceding air suck the entering narrow slit of extracting; Realize the analysis by absorption of gases of sample, and, realize that injector 200 extracts the sample introduction analysis that test paper adheres to sample with the narrow slit that inserts injection port 210 after the suitable big or small test paper wipe samples.
Simultaneously, in injector 200, also be provided with a feedback tracheae 240, the rear end of feedback tracheae 240 is connected with the exhaust end of sampling pump; The front end of feedback tracheae 240 is provided with and brushes mouth 241; Brush mouthfuls 241 and be arranged on injection port 210 belows (referring to Fig. 3), make the feedback thermal current blow out and feedback air-flow secondary is sucked and brush object surface brushing mouthful 241 places, help to draw particulate samples; Analysis by absorption of gases improves sample introduction efficiency.
In an embodiment, injector 200 adopts metal or high thermal conduc tivity ceramics to make, and the outer setting of injector 200 is wound with the constantan heating plate and wraps up in applies high-temperature-resistant thermal-insulation material heating heat-insulation layer 250; Energising is heated to the high temperature that can resolve air atom and gasification test paper sample and forms sample air when analyzing, and carries out the ionization analysis.
In the present embodiment, injector 200 is fixed on the front end of migration spectrometry body 100 through a set collar 260.
Be provided with the first ion migration area 110 and the second ion migration area 120 that is respectively applied for positive ion and the detection of negative ion mobility in the migration spectrometry body 100; The rear end of injector 200 is communicated with the front end of the first ion migration area 110 and the second ion migration area 120 through a bilateral trunnion 400; Be provided with first ionization chamber 130 between the rear end of the front end of the first ion migration area 110 and bilateral trunnion 400; Be provided with second ionization chamber 140 between the rear end of the front end of the second ion migration area 120 and bilateral trunnion 400; The front end of the first ion migration area 110 also is provided with first electromotive force migration door 111; The rear end of the first ion migration area 110 is provided with ion collection dish 112; The front end of the second ion migration area 120 also is provided with electromotive force migration door 121; The rear end of the second ion migration area 120 is provided with ion collection dish 122, and ion collection dish 112 is communicated with the signal output part 300 that is arranged on migration spectrometry body 100 rear ends through ion flow detecting device 150, and ion collection dish 122 is communicated with the signal output part 300 that is arranged on migration spectrometry body 100 rear ends through ion flow detecting device 160; Realize the ion migration; Detection of positive ions needs ionization chamber 130, electromotive force migration door 111, the first ion migration area 110 and ion collection dish 112 are added voltage from high to low, and detecting negative ion needs ionization chamber 140, electromotive force migration door 121, the second ion migration area 120 and ion collection dish 122 are added voltage from low to high, makes the ion migration of under electric field force, moving.
Be provided with one group of electrode needle 131 in first ionization chamber 130 and the first ion migration area 110; One end of electrode needle 131 is arranged on first ionization chamber, 130 electrodes such as grade; The other end of electrode needle 131 is communicated with the test positive ion through contact conductor 500 or tests the voltage of electric field of negative ion; Be provided with one group of electrode needle 141 in second ionization chamber 140 and the second ion migration area 120; One end of electrode needle 141 is arranged on second ionization chamber, 140 electrodes such as grade; The other end of electrode needle 141 is through the voltage of electric field of contact conductor 500 connection negative ions or positive ion, and in the present embodiment, contact conductor 500 is communicated with test positive ions and the voltage of electric field of testing negative ion through electric field high-voltage plug 600; Electrode needle 131 is fixed on the migration spectrometry body 100 through electrode cap 132, and electrode needle 141 is fixed on the migration spectrometry body 100 through electrode cap 142.
In the present embodiment, be provided with the filtering membrane 270 that is used to deaden dust steam between injector 200 rear ends and the bilateral trunnion 400; Dust is with the sample particulate, perhaps inserting wiping crosses the test paper that contains the sample particulate in sucking air; At high temperature form sample air; Filtering membrane 270 after the synthetic air compressing is positioned at injector 200 under the sampling pump effect; Make sample air pass through filtering membrane 270 and get into the first ion migration area 110 and the second ion migration area 120 from the bilateral trunnion, bilateral trunnion 400 makes the sample air even entering first ion migration area 110 and the second ion migration area 120 carry out ion mobility and detects.
The sample molecule that bilateral trunnion 400 attracts is ionized into ion through first ionization chamber 130 and second ionization chamber 140; It is positive ion that drugs lose electronics; It is negative ion that explosive adheres to electronics; The first ion migration area 110 that gets into the positive ion migration in electromotive force migration door 111 and electromotive force migration door 121 and electric field force effect down moves towards ion collection dish 122 towards the second ion migration area 120 of 112 motions of ion collection dish or negative ion migration; According to moment benchmark open the door time and migration area length; The corresponding ion of ionic spectrum signal that the signal output part 300 of migration spectrometry body 100 rear ends obtains is gone to the time of migration area terminal point, just can test and calculate the ion mobility of corresponding sample material, compares some material (like the drugs explosive) ion mobility standard value and determines whether drugs and explosive with regard to accomplishing.
In the present embodiment, the external packets at migration spectrometry body 100 is covered with heat tracing cover 170.Reach temperature constant state, make the internal gas flow of migration spectrometry body 100 be in constant current and be convenient to test correctly with pressure constant state with air pressure;
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; These variations and improvement all fall in the scope of the invention that requires protection, and the present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (8)
1. two survey of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum managed; It comprises a migration spectrometry body; It is characterized in that; The front end of said migration spectrometry body is provided with the injector that can realize that sample analysis by absorption of gases and test paper wiping are analyzed; Be provided with the first ion migration area and the second ion migration area that are respectively applied for positive ion and the detection of negative ion mobility in the said migration spectrometry body; The rear end of said injector is communicated with the front end of the said first ion migration area and the second ion migration area through a bilateral trunnion; Be provided with first ionization chamber between the rear end of the front end of the said first ion migration area and said bilateral trunnion; Be provided with second ionization chamber between the rear end of the front end of the said second ion migration area and said bilateral trunnion, the front end of the said first ion migration area and the second ion migration area is provided with electromotive force migration door, and the rear end of the said first ion migration area and the second ion migration area is provided with the ion collection dish; Said ion collection dish is communicated with the signal output part that is arranged on said migration spectrometry body rear end through the ion flow detecting device; The said first ionization chamber travel district and the second ionization chamber travel district respectively are provided with one group of electrode needle, and an end of said electrode needle is arranged in the said first ionization chamber travel district and the second ionization chamber travel district, and the other end of said electrode needle is communicated with the voltage of electric field of test positive ion or test negative ion respectively through contact conductor.
2. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 1; It is characterized in that; The front end of said injector is provided with the flat injection port of a single narrow slit, said injector be provided with one with the valve that is connected of end of bleeding of sampling pump.
3. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 2; It is characterized in that; In said injector, also be provided with a feedback tracheae; The rear end of said feedback tracheae is connected with the exhaust end of said sampling pump, and the front end of said feedback tracheae is provided with and brushes mouth, and the said mouth that brushes is arranged on said injection port below.
4. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 1; It is characterized in that; Said injector adopts metal or high thermal conduc tivity ceramics to make, and the outer setting of said injector is wound with the constantan heating plate and wraps up in applies high-temperature-resistant thermal-insulation material heating heat-insulation layer.
5. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 1 is characterized in that, are provided with the filtering membrane that is used to deaden dust steam between said injector rear end and the said bilateral trunnion; The injector air motion can be oppressed filtering membrane to carry sample air and to get into the first ion migration area and the second ion migration area through filtering membrane from the bilateral trunnion, and the bilateral trunnion makes the sample air even entering first ion migration area and the second ion migration area carry out ion mobility and detects.
6. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 1 is characterized in that said injector is fixed on the front end of said migration spectrometry body through a set collar.
7. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 1 is characterized in that, are covered with one group of heat tracing cover in the external packets of said migration spectrometry body.
8. the two pipes of surveying of single tube double-chamber suction test paper dual-sampling cation and anion mobility spectrum as claimed in claim 1 is characterized in that said contact conductor is communicated with the voltage of electric field of test positive ion and test negative ion through the electric field high-voltage plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010137871.XA CN101819179B (en) | 2010-04-01 | 2010-04-01 | Single-pipe double-chamber suction test paper dual-sampling cation and anion mobility spectrum dual measuring pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010137871.XA CN101819179B (en) | 2010-04-01 | 2010-04-01 | Single-pipe double-chamber suction test paper dual-sampling cation and anion mobility spectrum dual measuring pipe |
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| CN101819179A CN101819179A (en) | 2010-09-01 |
| CN101819179B true CN101819179B (en) | 2012-12-12 |
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Families Citing this family (20)
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| CN102568994B (en) | 2010-12-31 | 2014-08-06 | 同方威视技术股份有限公司 | Sample injection device for ion mobility spectrometer (IMS), use method thereof and IMS |
| CN102565181B (en) * | 2010-12-31 | 2014-04-09 | 同方威视技术股份有限公司 | Sample injection device for ion mobility spectrometer (IMS), use method thereof and IMS |
| CN102751161B (en) * | 2012-07-25 | 2015-08-05 | 公安部第三研究所 | Be applied to the semiconductor heating ion migration tube structure of ionic migration spectrum detector |
| US10026599B2 (en) | 2015-03-06 | 2018-07-17 | Micromass Uk Limited | Rapid evaporative ionisation mass spectrometry (“REIMS”) and desorption electrospray ionisation mass spectrometry (“DESI-MS”) analysis of swabs and biopsy samples |
| CA2977900A1 (en) | 2015-03-06 | 2016-09-15 | Micromass Uk Limited | Collision surface for improved ionisation |
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| WO2016142689A1 (en) | 2015-03-06 | 2016-09-15 | Micromass Uk Limited | Tissue analysis by mass spectrometry or ion mobility spectrometry |
| DE202016008460U1 (en) | 2015-03-06 | 2018-01-22 | Micromass Uk Limited | Cell population analysis |
| KR102092047B1 (en) | 2015-03-06 | 2020-03-24 | 마이크로매스 유케이 리미티드 | In vivo endoscopic tissue identification tool |
| CA2981085A1 (en) | 2015-03-06 | 2016-09-15 | Micromass Uk Limited | Spectrometric analysis |
| GB2553918B (en) | 2015-03-06 | 2022-10-12 | Micromass Ltd | Ambient ionization mass spectrometry imaging platform for direct mapping from bulk tissue |
| CA2978048A1 (en) | 2015-03-06 | 2016-09-15 | Micromass Uk Limited | Liquid trap or separator for electrosurgical applications |
| WO2016142679A1 (en) | 2015-03-06 | 2016-09-15 | Micromass Uk Limited | Chemically guided ambient ionisation mass spectrometry |
| GB2554202B (en) | 2015-03-06 | 2021-08-18 | Micromass Ltd | Imaging guided ambient ionisation mass spectrometry |
| GB2556436B (en) | 2015-03-06 | 2022-01-26 | Micromass Ltd | Cell population analysis |
| CN107667288B (en) | 2015-03-06 | 2022-02-01 | 英国质谱公司 | Spectral analysis of microorganisms |
| GB201517195D0 (en) | 2015-09-29 | 2015-11-11 | Micromass Ltd | Capacitively coupled reims technique and optically transparent counter electrode |
| WO2017178833A1 (en) | 2016-04-14 | 2017-10-19 | Micromass Uk Limited | Spectrometric analysis of plants |
| CN106525523B (en) * | 2017-01-03 | 2023-09-08 | 公安部第一研究所 | Thermal analysis sample injector for ion mobility spectrometer |
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| CN1829911A (en) * | 2003-06-20 | 2006-09-06 | 杨百翰大学 | Single device for ion mobility and ion trap mass spectrometry |
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| US20070158548A1 (en) * | 2006-01-09 | 2007-07-12 | Ge Security, Inc. | Ion trap mobility spectrometer |
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| CN1829911A (en) * | 2003-06-20 | 2006-09-06 | 杨百翰大学 | Single device for ion mobility and ion trap mass spectrometry |
| CN101427130A (en) * | 2006-01-02 | 2009-05-06 | 卓漂仪谱公司 | Multi-dimensional ion mobility spectrometry apparatus and methods |
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