Title: Chromatographic attachment for supercritical fluid
Application Number: 90101353 Application Date: 1990.03.17
Publication Number: 1044536 Publication Date: 1990.08.08
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01N30/02
Applicant(s) Name: Sun Yunpeng Address:
Inventor(s) Name: Sun Minghua
Attorney & Agent: ZHANG YAOSHAN
Abstract:
     The accessory comprises a pump unit controlled by a microcomputer, a sample valve, a spectrum column, a damper etc. Step motor controlled by the microcomputer makes the sample carried by flow phase CO2 enter the spectrum column and then be separated and detected. Since the flow phase is super critical fluid CO2 which has definite polarity and wherein there solve many low volatility material which can attatch to the gas phase chromatograph, so the detection range is extended. The accessory can be used in current gas phase chromatograph as well as super critical fluid chromatograph.
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