Method Overview:

In high-purity gas analysis, the analysis of trace amounts of CO, CH4, and CO2 plays an important role. This method uses the TDX-01 chromatographic column to complete the separation, and the methane converter converts CO/CO2 into CH4. It responds on a hydrogen flame FID detector and can obtain detection limit concentration indicators better than 0.05 ppm.

Experimental instruments and standards:

Gas chromatograph G51 (FID detector), six way valve+modular methane converter

Data processing workstation 3091

Standard gas 4L: CO (1PPM); CO2 (1PPM)； CH4（1PPM）

N2 purity>99.999%

Air: Oil free air generator (XGA-380A)

Hydrogen: High purity hydrogen generator (XGH-300)