Gas chromatograph/mass spectrometer system

Details Gas chromatograph/mass spectrometer system Gas chromatograph/mass spectrometer system

1996-05-29

1997-11-11

Williams, Hezron E.

Measuring and testing

Gas analysis

Gas chromatography

73 2342, 96106, 96104, 250288, 422 89, G01N 3072, G01N 3108, B01D 5944

Patent

active

056866550

ABSTRACT:
Conventionally, the mass spectrometer unit is placed beside the gas chromatograph unit when the gas chromatograph unit is coupled with a mass spectrometer unit, whereas the normal detector is placed on the top of the gas chromatograph unit when it is coupled with a normal detector. This requires different structure of the gas chromatograph unit. In the gas chromatograph/mass spectrometer (GC/MS) system of the present invention that uses a suitably modified and re-designed mass spectrometer, the mass spectrometer unit is mounted on the top of the casing of the gas chromatograph unit. Thus a common gas chromatograph unit can be used whether it is coupled with a normal detector or with a mass spectrometer unit. Another advantage of the GC/MS system of the present invention is that it occupies less table-top or floor space.

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patent: 5437179 (1995-08-01), Wiegand et al.
patent: 5467635 (1995-11-01), Nakagawa et al.

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