Gas Chromatography

A gas chromatograph (GC) is an analytical instrument that measures the content of various components in a sample. The analysis performed by a gas chromatograph is called gas chromatography. 

Principle of gas chromatography: The sample solution injected into the instrument enters a gas stream which transports the sample into a separation tube known as the "column." (Helium or nitrogen is used as the so-called carrier gas.) The various components are separated inside the column. The detector measures the quantity of the components that exit the column. To measure a sample with an unknown concentration, a standard sample with known concentration is injected into the instrument. The standard sample peak retention time (appearance time) and area are compared to the test sample to calculate the concentration. 

Product Lineup

Nexis GC-2030

Designed with the Analyst in Mind Analysts will benefit...


Versatile standard Capillary and Packed Gas Chromatograph...


GC-2025 Energy-Saving Gas Chromatograph ...


The MDGC-2010 System uses the new and innovative technique of Multiple-heart-...

Nexis SCD-2030

The Nexis™ SCD-2030 is a next-generation sulfur chemiluminescence detection system.

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