Radiant energy – Ionic separation or analysis – Cyclically varying ion selecting field means
Reexamination Certificate
2004-09-03
2009-08-18
Wells, Nikita (Department: 2881)
Radiant energy
Ionic separation or analysis
Cyclically varying ion selecting field means
C250S281000, C250S282000, C250S283000, C250S397000
Reexamination Certificate
active
07576324
ABSTRACT:
Ion detection methods are provided that can include applying a first voltage between a power source and a dynode, and contacting the dynode with first ions to create a first charged species. After applying the first voltage, a second voltage can be applied between the power source and the dynode, and the dynode can be contacted with second ions to create a second charged species. Mass spectrometry instrument circuitry is also provided that can include a power source coupled to a dynode via at least one switch with the switch being operatively configured in one position to apply a first voltage between the dynode and the power source, and, in another position, configured to apply a second voltage between the dynode and the power source. Mass spectrometry analysis methods are also provided that can include detecting sorted ions using a dynode configured according to an ion detection parameter with the ion detection parameter including first and second dynode values associated with first and second time values. Methods and circuitry for portable instrumentation are also provided.
REFERENCES:
patent: 4423324 (1983-12-01), Stafford
patent: 4766312 (1988-08-01), Fergusson et al.
patent: 4810882 (1989-03-01), Bateman
patent: 4988867 (1991-01-01), Laprade
patent: 4996422 (1991-02-01), Mitsui et al.
patent: 5202561 (1993-04-01), Giessmann et al.
patent: 5401965 (1995-03-01), Kaneko et al.
patent: 5481107 (1996-01-01), Takada et al.
patent: 5773822 (1998-06-01), Kitamura et al.
patent: 5852295 (1998-12-01), Da Silveira et al.
patent: 6025590 (2000-02-01), Itoi
patent: 6737644 (2004-05-01), Itoi
patent: 6861650 (2005-03-01), Kondo et al.
patent: 7026177 (2006-04-01), Laprade
patent: 7047144 (2006-05-01), Steiner
patent: 7294832 (2007-11-01), Wells et al.
patent: 2002/0195556 (2002-12-01), Yoshinari et al.
patent: 2006/0231769 (2006-10-01), Stresau et al.
International Search Report (PCT/US04/29127, filed Sep. 3, 2004).
Written Opinion of International Searching Authority (PCT/US04/29127, filed Sep. 3, 2004).
Grossenbacher John W.
Patterson Garth E.
Griffin Analytical Technologies, L.L.C.
Smith Johnnie L
Wells Nikita
Wells St. John P.S.
LandOfFree
Ion detection methods, mass spectrometry analysis methods,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ion detection methods, mass spectrometry analysis methods,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion detection methods, mass spectrometry analysis methods,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4062546