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Title: Portable gas chromatograph-mass spectrometer

A gas chromatograph-mass spectrometer (GC-MS) 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.
Inventors:
 [1];  [1];  [2];  [1]
  1. (Livermore, CA)
  2. (Manteca, CA)
Issue Date:
OSTI Identifier:
870459
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5525799
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
portable; gas; chromatograph-mass; spectrometer; gc-ms; field; organic; chemical; analysis; instrument; designed; contained; standard; size; suitcase; weighs; 70; pounds; requires; 600; watts; electrical; power; peak; systems; conduction; heated; forced; air; cooled; bore; capillary; chromatograph; injector; assembly; self-contained; sorption; pump; vacuum; hydrogen; supply; dual; computer; control; hardware; acquire; spectrum; data; operational; software; pumping; incorporates; modified; commercial; quadrupole; mass; achieve; sensitivity; resolution; characteristic; laboratory; bench; top; units; quadrupole mass; chromatograph-mass spectrometer; forced air; chemical analysis; mass spectrometer; electrical power; gas chromatograph; peak power; spectrum data; air cooled; gas chromatograph-mass; capillary gas; bore capillary; mass resolution; organic chemical; top unit; injector assembly; sorption pump; portable gas; analysis instrument; /250/