Title:
ION TRAP DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/163950
Kind Code:
A1
Abstract:
An ion trap device comprising an ion trap 2 which has a plurality of electrodes; a rectangular wave voltage generation unit 4 which includes voltage sources 41, 42 that generate DC voltage and switching units 43, 44, generates rectangular wave voltage by using the switching units 43, 44 to switch between the DC voltages generated by the voltage sources 41, 42, and applies the voltage to at least one of the plurality of electrodes; and switching unit temperature adjustment means 9, 93, 94, 95 for adjusting the temperature of the switching units 43, 44 so that the temperature of the switching units 43, 44 is kept at a target temperature, which is a temperature higher than the maximum temperature reached by the switching units 43, 44 during operation of the ion trap 2 and lower than the upper limit of the operable temperature of the switching units 43, 44. As a result, high precision mass measurement is made possible, without the influences of time drift during ion discharge and differences in analysis conditions.
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Inventors:
HAZAMA MAKOTO (JP)
Application Number:
PCT/JP2018/007712
Publication Date:
September 13, 2018
Filing Date:
March 01, 2018
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
H01J49/42
Domestic Patent References:
| WO2008129850A1 | 2008-10-30 |
Foreign References:
| JP2009277376A | 2009-11-26 | |||
| JP2011023167A | 2011-02-03 | |||
| JP2013073910A | 2013-04-22 | |||
| JP2007527002A | 2007-09-20 | |||
| JP2008282594A | 2008-11-20 | |||
| JP2011023167A | 2011-02-03 |
Other References:
See also references of EP 3594992A4
FURUHASHITAKESHITAOGAWAIWAMOTODINGGILESSMIRNOV: "Dejitaru Ion Torappu Shitsuryou Bunseki Souchi No Kaihatsu (Development of Digital Ion Trap Mass Spectrometer", SHIMADZU HYOURON (SHIMADZU REVIEW), SHIMADZU HYOURON HENSHUUBU, vol. 62, no. 3-4, 31 March 2006 (2006-03-31), pages 141 - 151
FURUHASHITAKESHITAOGAWAIWAMOTODINGGILESSMIRNOV: "Dejitaru Ion Torappu Shitsuryou Bunseki Souchi No Kaihatsu (Development of Digital Ion Trap Mass Spectrometer", SHIMADZU HYOURON (SHIMADZU REVIEW), SHIMADZU HYOURON HENSHUUBU, vol. 62, no. 3-4, 31 March 2006 (2006-03-31), pages 141 - 151
Attorney, Agent or Firm:
KYOTO INTERNATIONAL PATENT LAW OFFICE (JP)
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