摘要
建立了气相色谱-电子捕获检测器简便测定矿井示踪气体SF6的分析方法，对影响气相色谱色谱分离条件和灵敏度的操作变量进行了优化。在优化的实验条件下，SF6浓度在5～400ng／L范围内与峰面积具有良好的线性关系，相关系数r=0．9995，检出限为1ng／L，整个分析时间不超过5min。重复测定5次的相对标准偏差〈5％。采用建立的方法，对河南鹤壁煤矿作为示踪气体的SF6样品对实际样品进行分析，结果令人满意。
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.
出处
《煤矿安全》
CAS
北大核心
2008年第2期12-14,共3页
Safety in Coal Mines
基金
国家"十一五"科技支撑计划项目子课题(2006BAJ10B06-04)
关键词
气相色谱法
电子捕获检测器
SF6
示踪气体
gas chromatography
electron capture detector
sulfur hexafluoride
tracer gas
