Microminiature gas chromatograph

Patent · Tue Dec 10 00:00:00 EST 1996

OSTI ID:415726

Yu, C M

A microminiature gas chromatograph ({mu}GC) comprising a least one silicon wafer, a gas injector, a column, and a detector. The gas injector has a normally closed valve for introducing a mobile phase including a sample gas in a carrier gas. The valve is fully disposed in the silicon wafer(s). The column is a microcapillary in silicon crystal with a stationary phase and is mechanically connected to receive the mobile phase from the gas injector for the molecular separation of compounds in the sample gas. The detector is mechanically connected to the column for the analysis of the separated compounds of sample gas with electronic means, e.g., ion cell, field emitter and PIN diode. 7 figs.

• Research Organization: Univ. of California (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5,583,281/A/
• Application Number: PAN: 8-499,625
• OSTI ID: 415726
• Resource Relation: Other Information: PBD: 10 Dec 1996
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
EXTRACTION COLUMNS
DESIGN
GAS CHROMATOGRAPHY
MINIATURIZATION
SEPARATION PROCESSES
GAS ANALYSIS