EP0510025A1 - Procede et appareil d'injection d'echantillons dans des spectrometres de mobilite ionique - Google Patents

Procede et appareil d'injection d'echantillons dans des spectrometres de mobilite ionique

Info

Publication number
EP0510025A1
EP0510025A1 EP91901657A EP91901657A EP0510025A1 EP 0510025 A1 EP0510025 A1 EP 0510025A1 EP 91901657 A EP91901657 A EP 91901657A EP 91901657 A EP91901657 A EP 91901657A EP 0510025 A1 EP0510025 A1 EP 0510025A1
Authority
EP
European Patent Office
Prior art keywords
sample
septum
receptacle
ims
syringe
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Withdrawn
Application number
EP91901657A
Other languages
German (de)
English (en)
Inventor
John Alfred Stone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pylon Electronics Inc
Original Assignee
Pylon Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pylon Electronics Inc filed Critical Pylon Electronics Inc
Publication of EP0510025A1 publication Critical patent/EP0510025A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1079—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices with means for piercing stoppers or septums

Definitions

  • This invention relates to a method and apparatus for injecting a sample of material to be tested into an ion mobility sensor (IMS).
  • IMS ion mobility sensor
  • Various methods are known for injecting a sample into an IMS.
  • One method involves injecting sample material with a syringe by passing the needle of the syringe through a septum covering an opening in a sample receptacle from where it is taken by a carrier gas into the IMS.
  • An arrangement of this type although for a mass spectrometer, is disclosed in Canadian patent No. 1,045,253 of McLafferty, et al, issued December 26, 1978.
  • a method for injecting a sample of material to be tested into an ion mobility sensor comprising arranging an outlet tube projecting from one end of a sample receptacle into a sample inlet of said IMS, said sample receptacle enclosing a portion of said outlet tube and having an open other end opposite said one end and an inlet for a carrier gas, said method further comprising placing a sample of said material into a syringe, said syringe having a hollow needle passing through a septum, placing said septum against the open end of said sample receptacle so that said septum closes the end of said sample receptacle and said needle enters said outlet tube, passing carrier gas into said sample receptacle to thereby convey at least part of said sample into the IMS, and then removing said syringe and septum.
  • IMS ion mobility sensor
  • apparatus for injecting a sample of material to be tested into an ion mobility sensor comprising a sample receptacle having an outlet tube projecting from one end and adapted to be inserted into a sample inlet of an IMS, said receptacle enclosing a portion of said outlet tube and having an open other end opposite said one end and an inlet for a carrier gas, said apparatus further comprising a syringe for injecting sample material into said receptacle, said syringe having a needle projecting through a septum adapted to close said other end of said receptacle whereby said sample receptacle can be closed only long enough for sample injection after which it is open so that it does not receive contaminants from said septum.
  • IMS ion mobility sensor
  • the drawing shows the reaction region 12 of an IMS 10 which is provided with a sample inlet 14.
  • An outlet tube 15 of a sample receptacle 16 is received in the sample inlet 14 of the IMS.
  • the sample receptacle 16 has an open end 18.
  • a syringe 20 having a needle 21 provided with a septum 22 is placed so that the septum covers the end 18 of receptacle 16.
  • the needle 21 of the syringe projects into the outlet tube 15.
  • Sample material is injected into the receptacle using the syringe 20 and is taken by carrier gas introduced at 25 through outlet tube 15 and into IMS 10. The syringe and septum are then removed.
  • the sample receptacle 16 and tube 15 may be made of glass and the receptacle may be heated to, for example, 150°C by any suitable heat source (not shown).
  • the septum may be made of resilient material. Preferably it is made of Teflon (trade mark) or may be a Teflon facing on any suitable backing support member.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

Un procédé et un appareil permettent d'injecter un échantillon d'un matériau à contrôler dans un capteur de mobilité d'ions (IMS). L'aiguille d'une seringue est pourvue d'un septum, de préférence en TeflonR. Pendant son utilisation, le septum ferme l'extrémité ouverte d'un récipinet d'échantillon, le matériau de l'échantillon est injecté et transmis à l'IMS par un gaz porteur, puis la seringue et le septum sont enlevés, ce qui minimise les chances de contamination de l'IMS par des impuretés contenues dans le septum ou situées sur celui-ci.
EP91901657A 1990-01-09 1991-01-08 Procede et appareil d'injection d'echantillons dans des spectrometres de mobilite ionique Withdrawn EP0510025A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002007372A CA2007372A1 (fr) 1990-01-09 1990-01-09 Appareil et methode d'injection d'echantillons dans un spectrometre detecteur de mobilite d'ions
CA2007372 1990-01-09

Publications (1)

Publication Number Publication Date
EP0510025A1 true EP0510025A1 (fr) 1992-10-28

Family

ID=4143968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901657A Withdrawn EP0510025A1 (fr) 1990-01-09 1991-01-08 Procede et appareil d'injection d'echantillons dans des spectrometres de mobilite ionique

Country Status (3)

Country Link
EP (1) EP0510025A1 (fr)
CA (1) CA2007372A1 (fr)
WO (1) WO1991011014A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK172892B1 (da) 1997-10-20 1999-09-13 Hans Degn Doseringsenhed og metode til kontinuerlig indføring af væskeopløsningsprøver i et system
FR2936059B1 (fr) * 2008-09-15 2010-12-17 C & C Ingescience Dispositif et procede d'etalonnage d'un capteur a ionisation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581573A (en) * 1967-12-27 1971-06-01 Perkin Elmer Corp Sample injection arrangement for an analytical instrument
US4239967A (en) * 1979-04-13 1980-12-16 International Business Machines Corporation Trace water measurement
US4839143A (en) * 1985-02-15 1989-06-13 Allied-Signal Inc. Selective ionization of gas constituents using electrolytic reactions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9111014A1 *

Also Published As

Publication number Publication date
CA2007372A1 (fr) 1991-07-09
WO1991011014A1 (fr) 1991-07-25

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