Radiant energy – Ionic separation or analysis – With evacuation or sealing means
Reexamination Certificate
2009-05-28
2011-12-27
Berman, Jack (Department: 2881)
Radiant energy
Ionic separation or analysis
With evacuation or sealing means
C250S282000
Reexamination Certificate
active
08084736
ABSTRACT:
A mass spectrometer system including a differential mobility spectrometer and a mass spectrometer at least partially sealed to, and in fluid communication, with, the differential mobility spectrometer, together with a related method, are provided. The mass spectrometer system can be operable to, and method can comprise, a) maintaining the differential mobility spectrometer at an internal operating pressure; b) providing ions to the differential mobility spectrometer; c) maintaining the mass spectrometer at a vacuum pressure lower than the internal operating pressure to draw a gas flow including the ions through the differential mobility spectrometer and into the vacuum chamber; and, d) modifying the gas flow between the differential mobility spectrometer and the mass spectrometer to change a gas flow rate through the differential mobility spectrometer.
REFERENCES:
patent: 4023398 (1977-05-01), French et al.
patent: 5552600 (1996-09-01), Davies et al.
patent: 6504149 (2003-01-01), Guevremont et al.
patent: 6593568 (2003-07-01), Whitehouse et al.
patent: 6703609 (2004-03-01), Guevremont et al.
patent: 6770875 (2004-08-01), Guevremont et al.
patent: 6774360 (2004-08-01), Guevremont et al.
patent: 6799355 (2004-10-01), Guevremont et al.
patent: 6806466 (2004-10-01), Guevremont et al.
patent: 7045778 (2006-05-01), Guevremont et al.
patent: 7399958 (2008-07-01), Miller et al.
patent: 2003/0020012 (2003-01-01), Guevremont
patent: 2006/0255261 (2006-11-01), Whitehouse et al.
patent: 2010/0102222 (2010-04-01), Musselman
patent: 2010/0282966 (2010-11-01), Schneider et al.
“Notification of Transmittal of The International Search Report and The Written Opinion of The International Searching Authority, or the Declaration” for PCT/CA2009/000741, Canadian Intellectual Property Office, Aug. 19, 2009, 14 pages, Gatineau, Quebec, Canada.
Grym, et al., Aerodynamic Mass Spectrometry Interfacing of Microdevices Without Electrospray Tips, 2006, pp. 1306-1314, The Royal Society of Chemistry, 2006.
Verenchikov, et al., Analys of Ionic Compositions of Solutions Using an Ion Gas Analyzer, in Book Chemical Analysis of Environment, 1991, pp. 127-133, Vovsibirsk: Nauka.
Extended European Search Report issued Oct. 31, 2011 in connection with Application No. 09753384.8.
International Search Report and Written Opinion issued Oct. 25, 2011 for Application No. PCT/US2011/037188.
Schneider et al., Planar differential mobility spectrometer as a pre-filter for atmospheric pressure ionization mass spectrometry. International Journal of Mass Spectrometry, Elsevier Science Publishers, Amsterdam, NL. Jan. 21, 2010; 298(1-3):45-54. XP027492682.
Covey Tom
Nazarov Erkin
Schneider Bradley
Berman Jack
MDS Analytical Technologies, a business unit of MDS Inc.
Smith David E
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