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Title: Portable gas chromatograph-mass spectrometer

A gas chromatograph-mass spectrometer (GC-MS) is described for use as a field portable organic chemical analysis instrument. The GC-MS is designed to be contained in a standard size suitcase, weighs less than 70 pounds, and requires less than 600 watts of electrical power at peak power (all systems on). The GC-MS includes: a conduction heated, forced air cooled small bore capillary gas chromatograph, a small injector assembly, a self-contained ion/sorption pump vacuum system, a hydrogen supply, a dual computer system used to control the hardware and acquire spectrum data, and operational software used to control the pumping system and the gas chromatograph. This instrument incorporates a modified commercial quadrupole mass spectrometer to achieve the instrument sensitivity and mass resolution characteristic of laboratory bench top units. 4 figs.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
242573
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 400102; PA: EDB-96:094280; SN: 96001600383
Patent Number(s):
US 5,525,799/A/
Application Number:
PAN: 8-225,111
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 11 Jun 1996
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; MASS SPECTROMETERS; DESIGN; EXTRACTION COLUMNS; PORTABLE EQUIPMENT; ORGANIC COMPOUNDS; COMPUTERIZED CONTROL SYSTEMS; ACCURACY