Title:
物質の混合物を分析する質量分析方法
Document Type and Number:
Japanese Patent JP2005526962
Kind Code:
A
Abstract:
The invention relates to a mass spectrometry method for analysing mixtures of substances using a triple quadrupole mass spectrometer, whereby said mixtures of substances are ionised prior to analysis. The invention is characterised in that the method comprises the following steps: a) selection of a mass/charge quotient (m/z) of an ion created by ionisation in a first analytical quadrupole (I) of the mass spectrometer; b) fragmentation of the ion selected in step (a) by applying an acceleration voltage in an additional subsequent quadrupole (II), which is filled with a collision gas and acts as a collision chamber; c) selection of a mass/charge quotient of an ion created by the fragmentation process in step (b) in an additional subsequent quadrupole (III), whereby steps (a) to (c) of the method are carried out at least once; and d) analysis of the mass/charge quotients of all the ions present in the mixture of substances as a result of the ionisation process, whereby the quadrupole (II) is filled with collision gas, but no acceleration voltage is applied during the analysis. Steps (a) to (c) and step (d) can also be carried out in reverse order.
Inventors:
Valk, Tillman, Be.
Martin, Dostler
Martin, Dostler
Application Number:
JP2003572064A
Publication Date:
September 08, 2005
Filing Date:
February 10, 2003
Export Citation:
Assignee:
Metanomics Game Behr und Zeo.
International Classes:
H01J49/10; H01J49/42; G01N27/62; (IPC1-7): G01N27/62; H01J49/10; H01J49/42
Foreign References:
| WO2001015201A2 | 2001-03-01 | |||
| WO2002008767A2 | 2002-01-31 | |||
| WO2000048004A1 | 2000-08-17 | |||
| US6140638A | 2000-10-31 |
Attorney, Agent or Firm:
Yusuke Hiraki
Ishii Teiji
Satoshi Fujita
Ishii Teiji
Satoshi Fujita