CA2250145C - Systeme de filtration a recirculation pour spectrometre de mobilite ionique portable - Google Patents
Systeme de filtration a recirculation pour spectrometre de mobilite ionique portable Download PDFInfo
- Publication number
- CA2250145C CA2250145C CA002250145A CA2250145A CA2250145C CA 2250145 C CA2250145 C CA 2250145C CA 002250145 A CA002250145 A CA 002250145A CA 2250145 A CA2250145 A CA 2250145A CA 2250145 C CA2250145 C CA 2250145C
- Authority
- CA
- Canada
- Prior art keywords
- sample
- flow
- filtration system
- inlet
- fluid
- 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.)
- Expired - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 61
- 230000003134 recirculating effect Effects 0.000 title claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 99
- 239000012491 analyte Substances 0.000 claims abstract description 67
- 239000000126 substance Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 15
- 150000002500 ions Chemical class 0.000 claims description 61
- 238000012546 transfer Methods 0.000 claims description 53
- 238000010438 heat treatment Methods 0.000 claims description 51
- 239000012159 carrier gas Substances 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 18
- 230000005526 G1 to G0 transition Effects 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 claims description 9
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- 239000012535 impurity Substances 0.000 claims description 7
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- 239000012528 membrane Substances 0.000 claims description 5
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- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 3
- 238000013508 migration Methods 0.000 claims 2
- 230000005012 migration Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000356 contaminant Substances 0.000 abstract description 41
- 238000001871 ion mobility spectroscopy Methods 0.000 abstract description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 9
- 238000004817 gas chromatography Methods 0.000 abstract description 6
- 238000009499 grossing Methods 0.000 description 27
- 241000894007 species Species 0.000 description 27
- 238000013461 design Methods 0.000 description 20
- 230000004044 response Effects 0.000 description 20
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000006276 transfer reaction Methods 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000002411 adverse Effects 0.000 description 6
- 239000003570 air Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000012080 ambient air Substances 0.000 description 5
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000003795 desorption Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
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- 239000011521 glass Substances 0.000 description 3
- 239000002808 molecular sieve Substances 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005591 charge neutralization Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
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- 229910052697 platinum Inorganic materials 0.000 description 2
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- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
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- 241000531908 Aramides Species 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 229920004459 Kel-F® PCTFE Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000005513 bias potential Methods 0.000 description 1
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- 238000004364 calculation method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- 239000000806 elastomer Substances 0.000 description 1
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- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000001616 ion spectroscopy Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
De façon générale, l'invention concerne un système de filtration à recirculation destiné à un spectromètre de mobilité ionique (IMS) portable. Un premier mode de réalisation préféré dudit système comprend une pompe reliée par un ensemble de filtres et de capteurs de débit à un capteur IMS. Le flux de sortie du capteur IMS est nettoyé par les filtres et remis en circulation par la pompe, qui le renvoie dans le capteur IMS en tant que flux de courant fluidique support. Une partie du flux de sortie du capteur égale à la quantité de flux qui y a été introduite est évacuée du système de filtration, ce qui permet de maintenir un débit total constant dans l'ensemble du système lorsque l'échantillon est prélevé. Un second mode de réalisation préféré comporte un système de filtration à recirculation portable qui permet de mesurer une concentration inconnue d'une substance contaminante ionisable sélectionnée présente, telle que du benzène, dans laquelle d'autres substances peuvent coexister, et qui emploie un dispositif permettant d'introduire une concentration contrôlée du contaminant ionisable sélectionné dans un capteur d'IMS. La concentration inconnue est calculée par la méthode d'addition standard. Le second mode de réalisation préféré peut également être utilisé pour étalonner le capteur IMS en déterminant quelles sont les structures d'ionogramme obtenues en présence d'un analyte particulier dans le flux d'échantillonnage. Un troisième mode de réalisation préféré est un système de filtration à recirculation destiné à un spectromètre de mobilité ionique portable pour des applications de chromatographie en phase gazeuse. Ledit système comprend une pompe et un ensemble de filtres et de capteurs de débit reliés à un capteur IMS comportant à son entrée une colonne de chromatographie gazeuse.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/627,584 | 1996-04-04 | ||
| US08/628,147 | 1996-04-04 | ||
| US08/627,584 US5763876A (en) | 1996-04-04 | 1996-04-04 | Inlet heating device for ion mobility spectrometer |
| US08/628,147 US5723861A (en) | 1996-04-04 | 1996-04-04 | Recirculating filtration system for use with a transportable ion mobility spectrometer |
| PCT/US1997/005641 WO1997038302A1 (fr) | 1996-04-04 | 1997-04-04 | Systeme de filtration a recirculation pour spectrometre de mobilite ionique portable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2250145A1 CA2250145A1 (fr) | 1997-10-16 |
| CA2250145C true CA2250145C (fr) | 2004-11-23 |
Family
ID=27090461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002250145A Expired - Fee Related CA2250145C (fr) | 1996-04-04 | 1997-04-04 | Systeme de filtration a recirculation pour spectrometre de mobilite ionique portable |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2250145C (fr) |
-
1997
- 1997-04-04 CA CA002250145A patent/CA2250145C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2250145A1 (fr) | 1997-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |