WO2005013312A3 - Quadrupole mass filter - Google Patents

Quadrupole mass filter Download PDF

Info

Publication number
WO2005013312A3
WO2005013312A3 PCT/GB2004/003340 GB2004003340W WO2005013312A3 WO 2005013312 A3 WO2005013312 A3 WO 2005013312A3 GB 2004003340 W GB2004003340 W GB 2004003340W WO 2005013312 A3 WO2005013312 A3 WO 2005013312A3
Authority
WO
WIPO (PCT)
Prior art keywords
mass filter
quadrupole mass
axis
precursor fault
electrode rods
Prior art date
Application number
PCT/GB2004/003340
Other languages
French (fr)
Other versions
WO2005013312A2 (en
Inventor
Donald Matthew Burns
Stephen Taylor
John Raymond Gibson
Original Assignee
Reliance Gear Company Ltd
Donald Matthew Burns
Stephen Taylor
John Raymond Gibson
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 Reliance Gear Company Ltd, Donald Matthew Burns, Stephen Taylor, John Raymond Gibson filed Critical Reliance Gear Company Ltd
Priority to EP04767964A priority Critical patent/EP1649488A2/en
Publication of WO2005013312A2 publication Critical patent/WO2005013312A2/en
Publication of WO2005013312A3 publication Critical patent/WO2005013312A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/26—Mass spectrometers or separator tubes
    • H01J49/34—Dynamic spectrometers
    • H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
    • H01J49/4205—Device types
    • H01J49/421—Mass filters, i.e. deviating unwanted ions without trapping
    • H01J49/4215—Quadrupole mass filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/0027—Methods for using particle spectrometers
    • H01J49/0031—Step by step routines describing the use of the apparatus

Abstract

Apparatus and method to improve the filtering action of a quadrupole mass filter by reducing a precursor fault caused by au uymmetric electrical fleld between a pair of opposing electrode rods in a y-axis of the quadrupolo mass filter. Processing means for processing detector data determine the filtering action of the quadrupole mass filter by chxking for a precursor fault. If a precursor fault is detected then power supply control means introduce an AC potential differcnce across the electrode rods in the y-axis in order to reduce asymmetry in the electrical field ia the y-axis.
PCT/GB2004/003340 2003-07-31 2004-07-30 Quadrupole mass filter WO2005013312A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04767964A EP1649488A2 (en) 2003-07-31 2004-07-30 Quadrupole mass filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0317953A GB2390222B (en) 2003-07-31 2003-07-31 Quadrupole mass filter
GB0317953.8 2003-07-31

Publications (2)

Publication Number Publication Date
WO2005013312A2 WO2005013312A2 (en) 2005-02-10
WO2005013312A3 true WO2005013312A3 (en) 2006-01-05

Family

ID=27799568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/003340 WO2005013312A2 (en) 2003-07-31 2004-07-30 Quadrupole mass filter

Country Status (3)

Country Link
EP (1) EP1649488A2 (en)
GB (1) GB2390222B (en)
WO (1) WO2005013312A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2583092B (en) * 2019-04-15 2021-09-22 Thermo Fisher Scient Bremen Gmbh Mass spectrometer having improved quadrupole robustness
GB201907332D0 (en) * 2019-05-24 2019-07-10 Micromass Ltd Mass filter having reduced contamination

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06325731A (en) * 1993-05-12 1994-11-25 Hitachi Ltd Quadrupole mass spectrometry device and correction voltage setting method
JPH08102283A (en) * 1994-09-29 1996-04-16 Shimadzu Corp Quadrupole mass filter
US5613294A (en) * 1993-06-14 1997-03-25 Ferran Scientific Method of making a residual gas sensor utilizing a miniature quadrupole array

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725700A (en) * 1971-02-08 1973-04-03 Hewlett Packard Co Multipole mass filter with artifact-reducing electrode structure
US5187365A (en) * 1991-02-28 1993-02-16 Teledyne Mec Mass spectrometry method using time-varying filtered noise

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06325731A (en) * 1993-05-12 1994-11-25 Hitachi Ltd Quadrupole mass spectrometry device and correction voltage setting method
US5613294A (en) * 1993-06-14 1997-03-25 Ferran Scientific Method of making a residual gas sensor utilizing a miniature quadrupole array
JPH08102283A (en) * 1994-09-29 1996-04-16 Shimadzu Corp Quadrupole mass filter

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 02 31 March 1995 (1995-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30) *

Also Published As

Publication number Publication date
EP1649488A2 (en) 2006-04-26
GB0317953D0 (en) 2003-09-03
GB2390222B (en) 2004-05-19
GB2390222A (en) 2003-12-31
WO2005013312A2 (en) 2005-02-10

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