Microminiature gas chromatograph

Patent · Sun Dec 31 23:00:00 EST 1995

OSTI ID:870731

Yu, Conrad M ^[1]

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1. Antioch, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5583281
• OSTI ID: 870731
• Country of Publication: United States
• Language: English

Related Subjects

/73/
analysis
carrier
carrier gas
cell
chromatograph
closed
closed valve
column
compounds
comprising
connected
crystal
detector
diode
disposed
electronic
electronic means
emitter
field
field emitter
gas
gas chromatograph
gas injector
gc
including
injector
introducing
means
mechanically
mechanically connect
mechanically connected
microcapillary
microminiature
microminiature gas
mobile
mobile phase
molecular
molecular separation
normally
normally close
normally closed
phase
phase including
receive
sample
sample gas
separated
separation
silicon
silicon crystal
silicon wafer
stationary
stationary phase
valve
wafer