Study of Determination of Sulfur Hexafluoride as Mine Tracer Gas by Gas Chromatography with Electron Capture Detector

In this paper,a simple method for determination of SF6 as the mine tracer gas by Gas chromatography-Electron capture detector was developed.The operation parameters that affect separation effect of chromatography were studied.Under the optimized condition,there is good linearity relationship between the peak area and the concentration of SF6 over the range 5~400 ng/L(r=0.9995).The detection limits of 1 ng/L.The RSD were lower than 5%.The developed method had been used for the actual sample analysis.The results were satisfactory.