Impurity gas analysis is necessary in industries such as petrochemical, chemical, medical, and foods. Precisely controlled GC enables identification and quantitation of a trace amount of impurities in bulk gas. If the gas resources in a factory consist of multiple lines, a sample line selector can be utilized to switch sample lines automatically, allowing a single GC to analyze all samples.

 

Model: Nexis GC-2030, GC-2014

Standard Analyzer Name Compounds %, ppm Main Component Analysis Time Application Data Sheet
ASTM D2504 TH2 H2 ppm C2 and Lighter Hydrocarbon 5 minutes ADS-063
TNO O2, N2 ppm C2 and Lighter Hydrocarbon 5 minutes ADS-064
TCC CO, CO2, CH4 ppm C3 and Lighter Hydrocarbon 20 minutes ADS-065
HC3 Inorganic gases ppm C4 and Lighter Hydrocarbon 7 minutes ADS-168
UOP 603 CCC6 Trace CO and CO2 in hydrogen/ light gaseous hydrocarbons ppm Light gaseous hydrocarbons 15 minutes ADS-178

Trace Impurity Analysis in He gas

Impurities in He can be measured with a single analysis. This example shows an analysis with BID.

 

Target compounds Concentration
H2 100 ppb
O2 100 ppb
N2 100 ppb
CO 100 ppb
CH4 100 ppb
CO2 100 ppb

Chromatogram (Detector : BID)

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