Liquid purification or separation – With means to add treating material – Chromatography
Reexamination Certificate
2005-09-13
2005-09-13
Therkorn, Ernest G. (Department: 1723)
Liquid purification or separation
With means to add treating material
Chromatography
C210S656000, C210S659000, C210S143000
Reexamination Certificate
active
06942793
ABSTRACT:
A liquid chromatograph mass spectrometer comprises: a pump; a sample injector; a plurality of separation columns, including a first separation column and a second separation column; and mass spectrometer. The liquid chromatograph mass spectrometer further comprises: a plurality of trap columns for retaining a sample component separated by the first separation column; a first switching valve for switching between one of the plurality of trap columns and another one of the plurality of trap columns at regular time intervals in such a way that when the one of the plurality of trap columns is connected to the first separation column, the another one of the plurality of trap columns is connected to the pump, and vice versa; and a second switching valve for, when a trap column is connected to the pump, further connecting the trap column to the second separation column after connecting the trap column to solution discharging means during a predetermined initial time period, the second separation column being connected to the mass spectrometer and capable of separating the sample component in a shorter time than the first separation column.
REFERENCES:
patent: 5135718 (1992-08-01), Kawaguchi et al.
patent: 5958227 (1999-09-01), Uematsu
patent: 6235197 (2001-05-01), Anderson et al.
patent: 6344172 (2002-02-01), Afeyan et al.
patent: 6485642 (2002-11-01), Kaito et al.
patent: 6498040 (2002-12-01), Yokoyama et al.
patent: 6586727 (2003-07-01), Bateman et al.
patent: 6780325 (2004-08-01), Murata et al.
patent: 6802967 (2004-10-01), Masuda et al.
patent: 2002/0011437 (2002-01-01), Kaito et al.
patent: 2002/0146349 (2002-10-01), Gygi et al.
patent: 2003/0168392 (2003-09-01), Masuda et al.
Deguchi Kisaburo
Ito Shinya
LandOfFree
Liquid chromatograph mass spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid chromatograph mass spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid chromatograph mass spectrometer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3376697