Gas separation: processes – Chromatography
Reexamination Certificate
2004-04-28
2009-06-09
Smith, Duane (Department: 1797)
Gas separation: processes
Chromatography
C096S102000, C096S106000, C073S023360, C073S023400
Reexamination Certificate
active
07544233
ABSTRACT:
The aim of the invention is to optimize the analysis of substances separated by gas chromatography with a gas chromatograph, comprising a separating device and a mass spectrometer situated down there from. To this end, a detector that detects the separated substances in a nondestructive manner is placed in-line between the output of the separating device and a controllable inlet valve of the mass spectrometer. An evaluating device situated down from the detector evaluates the detector signals and, based on the evaluation, controls the inlet valve for introducing predeterminable substances into the mass spectrometer.
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D.B. Kassel, B.D. Musselman, and J.A. Smith, “Primary Structure Determination of Peptides and Enzymatically Digested Proteins Using Capillary Liquid Chromatography/Mass Spectrometry and Rapid Linked-Scan Techniques”, American Clerical Society, Analytical Chemistry, Jun. 1, 1991, pp. 1091-1097, vol. 63, No. 11, Massachusetts, USA.
Diedrich Frank
Müller Friedhelm
Clemente Robert A
Siemens Aktiengesellsachaft
Smith Duane
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