Home > Explosives Detection > Technology > Chromatography > Gas Chromatography (GC)

Gas chromatography is an instrumental technique for separating components of a mixture based on their boiling point, polarity, and affinity to a gas chromatography column. Since samples must be vaporized prior to analysis by GC, this technique is commonly used for analysis of volatile and semi-volatile organic compounds such as solvents, fuels, most CWAs, pharmaceutical and illicit drugs, and other chemicals that are thermally stable over the temperature range used for the analysis. GC is not generally applicable for materials with boiling points greater than 300ºC or for materials that decompose at high temperatures.

When combined with appropriate detectors, GC is one of the most sensitive analytical techniques available for the separation, detection, and identification of unknown chemicals, with detection limits typically in the ppm-ppt range, depending on the detector used. Some of the most common detectors used in combination with GC are:

  • Mass Selective Detection
  • Flame Photometric Detection
  • Photoionization Detection
  • Electron Capture Detection
  • Flame Ionization Detection
Manufacturer
CDS Analytical, Inc. (1)
Defiant Technologies (1)
Electronic Sensor Technology (1)
FLIR Systems, Inc. (1)
INFICON (1)
Scintrex Trace Corp. (1)
Seacoast Science, Inc. (1)
Transportability
Handheld (2)
Person-Portable (3)
Mounted (2)
Unit Cost
$1,000 - $5,000 (1)
$20,000 - $50,000 (5)
> $100,000 (1)
Sample Introduction
Solid (1)
Other (6)
Sensitivity / Detection Limit
ppm (2)
ppb (2)
ppt (1)
ng (1)
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ACEM 9350

ACEM 9350

CDS Analytical, Inc.

The ACEM 9350 Captures compounds of interest on adsorbent material packed in glass cartridges and th...

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Canary-3

Canary-3

Defiant Technologies

The Canary-3 is a hand-held system to detect semi-volatile compounds in air. In contrast to the Cana...

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EN5000 GC-IMS

EN5000 GC-IMS

Scintrex Trace Corp.

EN5000’s GC/IMS dual detection identifies specific explosives or narcotics traces. Detects military ...

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Griffin 460

Griffin 460

FLIR Systems, Inc.

The Griffin™ 460 is a mobile GC/MS that accepts liquid, solid, and air samples through syringe or so...

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Micro GC Fusion Gas Analyzer

Micro GC Fusion Gas Analyzer

INFICON

Micro GC Fusion offers advanced features in a compact, lightweight chassis that is easily transporta...

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SeaPORT Mini GC

SeaPORT Mini GC

Seacoast Science, Inc.

The SeaPORT Mini-GC features an oven-less heating technology with fast heat up and fast cool down ti...

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zNose (4200, 4300, 4600, 7100)

zNose (4200, 4300, 4600, 7100)

Electronic Sensor Technology

The Model 4300 zNose is a fully portable GC/SAW that can detect and analyze all types of vapors and ...

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