Hand-held temperature programmable modular gas chromatograph

Details Hand-held temperature programmable modular gas chromatograph Hand-held temperature programmable modular gas chromatograph

1997-03-21

1999-01-05

Williams, Hezron

Measuring and testing

Gas analysis

Gas chromatography

422 89, G01N 3004, G01N 3002

Patent

active

058566163

ABSTRACT:
A hand-portable, modular and temperature programmable gas chromatography aratus having reduced power consumption requirements is disclosed. The gas chromatography module includes a ring oven for housing a gas chromatography capillary column and programmable means for controlling the temperature of said column within the ring. The gas chromatography capillary column includes a sampling end and an effluent end. The sampling end of the GC capillary column is in fluid communication with a sampling nozzle and a vacuum pulse generating means. The vacuum generating means generates a sample pulse and directs the sample pulse to the sampling end of the gas chromatography capillary column during sample injection mode. During standby mode only clean dry air is directed to the column. The module is also easily interfaced with secondary sample detection or analysis instruments so that additional identification dimensions can added.

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