WO2008105880A3 - Method and apparatus for generating ions for mass analysis - Google Patents

Method and apparatus for generating ions for mass analysis Download PDF

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Publication number
WO2008105880A3
WO2008105880A3 PCT/US2007/063134 US2007063134W WO2008105880A3 WO 2008105880 A3 WO2008105880 A3 WO 2008105880A3 US 2007063134 W US2007063134 W US 2007063134W WO 2008105880 A3 WO2008105880 A3 WO 2008105880A3
Authority
WO
WIPO (PCT)
Prior art keywords
ion source
sample
pressure
laser
generating ions
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.)
Ceased
Application number
PCT/US2007/063134
Other languages
French (fr)
Other versions
WO2008105880A2 (en
Inventor
John J Corr
Jan Hendrikse
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.)
Nordion Inc
Applied Biosystems Inc
Original Assignee
MDS Inc
Applera Corp
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 MDS Inc, Applera Corp filed Critical MDS Inc
Priority to CA002645074A priority Critical patent/CA2645074A1/en
Priority to EP07840132A priority patent/EP2011139A2/en
Priority to JP2009551982A priority patent/JP2010509748A/en
Publication of WO2008105880A2 publication Critical patent/WO2008105880A2/en
Publication of WO2008105880A3 publication Critical patent/WO2008105880A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/10—Ion sources; Ion guns
    • H01J49/16—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission
    • H01J49/161—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission using photoionisation, e.g. by laser
    • H01J49/164—Laser desorption/ionisation, e.g. matrix-assisted laser desorption/ionisation [MALDI]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/06—Electron- or ion-optical arrangements
    • H01J49/067—Ion lenses, apertures, skimmers

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

An apparatus and method is disclosed for reducing contamination in a mass spectrometer instrument system. The system includes an ion source at a first pressure for generating ions by laser desorption/ionization and an inlet aperture to a vacuum chamber at a second, lower pressure than the first pressure of the ion source. A sample plate within the ion source supports a sample deposited thereon and a laser can be configured to generate laser pulses striking at least a portion of the sample at an angle of incidence from about 0 to about 80 degrees to the center line of a first ion optical axis of a mass analyzer, producing a plume. A combination of the angle of incidence of the laser pulses and the distance between the sample plate and the inlet region aperture can reduce neutral contaminants in the plume from being drawn into the inlet aperture.
PCT/US2007/063134 2006-03-07 2007-03-02 Method and apparatus for generating ions for mass analysis Ceased WO2008105880A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002645074A CA2645074A1 (en) 2007-02-28 2007-03-02 Method and apparatus for generating ions for mass analysis
EP07840132A EP2011139A2 (en) 2006-03-07 2007-03-02 Method and apparatus for generating ions for mass analysis
JP2009551982A JP2010509748A (en) 2006-03-07 2007-03-02 Method and apparatus for generating ions for mass spectrometry

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/680,196 2007-02-28
US11/680,196 US7750312B2 (en) 2006-03-07 2007-02-28 Method and apparatus for generating ions for mass analysis

Publications (2)

Publication Number Publication Date
WO2008105880A2 WO2008105880A2 (en) 2008-09-04
WO2008105880A3 true WO2008105880A3 (en) 2008-11-20

Family

ID=39671905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/063134 Ceased WO2008105880A2 (en) 2006-03-07 2007-03-02 Method and apparatus for generating ions for mass analysis

Country Status (3)

Country Link
US (1) US7750312B2 (en)
CA (1) CA2645074A1 (en)
WO (1) WO2008105880A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011013653B4 (en) * 2011-03-11 2024-05-08 Bruker Daltonics GmbH & Co. KG Method for assessing the contamination of a MALDI ion source in a mass spectrometer
WO2013098610A1 (en) * 2011-12-29 2013-07-04 Dh Technologies Development Pte. Ltd. Ionization with femtosecond lasers at elevated pressure
US9105458B2 (en) 2012-05-21 2015-08-11 Sarah Trimpin System and methods for ionizing compounds using matrix-assistance for mass spectrometry and ion mobility spectrometry
US10541122B2 (en) 2017-06-13 2020-01-21 Mks Instruments, Inc. Robust ion source
WO2023031870A1 (en) * 2021-09-03 2023-03-09 Dh Technologies Development Pte. Ltd. Prediction of precursor charge state in dm-swath analysis

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6504150B1 (en) * 1999-06-11 2003-01-07 Perseptive Biosystems, Inc. Method and apparatus for determining molecular weight of labile molecules
EP1465234A2 (en) * 2003-04-04 2004-10-06 Bruker Daltonics, Inc. Ion guide for mass spectrometers
WO2005001879A2 (en) * 2003-02-14 2005-01-06 Mds Sciex Atmospheric pressure charged particle discriminator for mass spectrometry
US20060124846A1 (en) * 2002-03-28 2006-06-15 Mds Sciex Inc. Laser desorption ion source with ion guide coupling for ion mass spectroscopy

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3255469B2 (en) * 1992-11-30 2002-02-12 三菱電機株式会社 Laser thin film forming equipment
US7087898B2 (en) * 2000-06-09 2006-08-08 Willoughby Ross C Laser desorption ion source
CA2477835C (en) * 2002-03-28 2011-11-22 Mds Sciex Method and system for high-throughput quantitation of small molecules using laser desorption and multiple-reaction-monitoring
US6953928B2 (en) * 2003-10-31 2005-10-11 Applera Corporation Ion source and methods for MALDI mass spectrometry

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6504150B1 (en) * 1999-06-11 2003-01-07 Perseptive Biosystems, Inc. Method and apparatus for determining molecular weight of labile molecules
US20060124846A1 (en) * 2002-03-28 2006-06-15 Mds Sciex Inc. Laser desorption ion source with ion guide coupling for ion mass spectroscopy
WO2005001879A2 (en) * 2003-02-14 2005-01-06 Mds Sciex Atmospheric pressure charged particle discriminator for mass spectrometry
EP1465234A2 (en) * 2003-04-04 2004-10-06 Bruker Daltonics, Inc. Ion guide for mass spectrometers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CORR ET AL: "Design Considerations for High Speed Quantitative Mass Spectrometry with MALDI Ionization", JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, ELSEVIER SCIENCE INC, US, vol. 17, no. 8, 1 August 2006 (2006-08-01), pages 1129 - 1141, XP005605748, ISSN: 1044-0305 *

Also Published As

Publication number Publication date
CA2645074A1 (en) 2007-09-04
US20080067409A1 (en) 2008-03-20
WO2008105880A2 (en) 2008-09-04
US7750312B2 (en) 2010-07-06

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