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Portable gas chromatograph mass spectrometer for on-site chemical analysis

A technology of gas chromatography and gas chromatography, applied in mass spectrometers, portable spectrometers, scientific instruments, etc.

Inactive Publication Date: 2006-02-15
LAWRENCE LIVERMORE NAT SECURITY LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, most industrial GC / MS systems are non-portable laboratory-based systems, or are only portable if the necessary external support equipment (gas supply, vacuum system, computer, etc.) is also shipped

Method used

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  • Portable gas chromatograph mass spectrometer for on-site chemical analysis
  • Portable gas chromatograph mass spectrometer for on-site chemical analysis
  • Portable gas chromatograph mass spectrometer for on-site chemical analysis

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Embodiment Construction

[0035] The invention is a portable gas chromatography mass spectrometer (GC / MS). This instrument is a device that is compact, weighs less than about 55 pounds (25 kg), and enables rapid on-site analysis of known and unknown chemicals. All necessary components, including gas chromatograph and carrier gas system, mass spectrometer, associated vacuum system, heater, electronics and control system, are integrated in one housing. The only accessory is a hand-held (lap-mounted) control computer. If the device includes a standby (standby) state capability, a temporary power source (ie, battery pack) is also required.

[0036] Figures 1A-1B schematically show top and side views of the basic components of the GC / MS system. These components can be arranged in different ways to occupy the volume of the device; Figures 1A-1B show one possible arrangement. The internal volume of the system is less than 4ft 3 or 0.1m 3 . The system is sized to be approximately 24 inches long x 15 inch...

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Abstract

A portable, lightweight (approximately 25 kg) gas chromatograph mass spectrometer, including the entire vacuum system, can perform qualitative and quantitative analyses of all sample types in the field. The GC / MS has a conveniently configured layout of components for ease of serviceability and maintenance. The GC / MS system can be transported under operating or near-operating conditions (i.e., under vacuum and at elevated temperature) to reduce the downtime before samples can be analyzed on-site.

Description

[0001] The U.S. Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the U.S. Department of Energy and the University of California to manage the Lawrance Livermore National Laboratory. technical field [0002] The invention relates to a portable gas chromatograph mass spectrometer which is especially suitable for on-site chemical analysis. Background technique [0003] For safety reasons, it is critical to quickly and highly accurately determine the level and type of contamination from certain environmental, industrial, civilian or military installations with unknown chemicals. Although many quantitative analytical methods exist, the instruments used are usually cumbersome and unsuitable for routine on-site sample analysis. In particular, gas chromatography mass spectrometry (GC / MS) is a powerful tool routinely used in most laboratories throughout the world for the qualitative and quantitative determination of known and unknown chemical spe...

Claims

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Application Information

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IPC IPC(8): G01N30/72G01N27/62G01N30/88H01J49/26
CPCG01N2030/8881H01J49/0022G01N2030/0095G01N30/7206G01N30/72
Inventor 杰弗里·S·豪斯约翰·F·布斯曼道格拉斯·E·霍华德詹姆斯·L·王乔尔·D·俄科尔斯布赖恩.D.安德烈森
Owner LAWRENCE LIVERMORE NAT SECURITY LLC
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