摘要
为掌握实验室检测非甲烷总烃的技术能力,2021年,笔者参加国家环境监测总站环境空气中非甲烷总烃能力考核,考核样按照《环境空气 总烃、甲烷和非甲烷总烃的测定 直接进样-气相色谱法》(HJ 604—2017)测定,能力考核结果满意。结果表明,采用直接进样-气相色谱法配双阀双柱双氢火焰离子化检测器,能同时测定环境空气中总烃、甲烷和非甲烷总烃,测定结果准确度高,精密度和重复性好,分析时间短,总烃、甲烷的校准曲线相关系数均大于0.999,该方法适用于环境空气中非甲烷总烃的日常检测。
In order to master the technical ability of the laboratory to detect non-methane total hydrocarbon,in 2021,the author participated in the assessment of the ability of non-methane total hydrocarbon in the ambient air of the National Environmental Monitoring Station,the test samples were determined in accordance with "Determination of Total Hydrocarbon,Methane and Non-Methane Total Hydrocarbon in Ambient Air by Direct Sampling-Gas Chromatography" (HJ 604—2017),the results of the ability assessment were satisfactory.The results show that the direct sampling-gas chromatography with double-valve double-column double-hydrogen flame ionization detector can simultaneously measure total hydrocarbon,methane and non-methane total hydrocarbon in ambient air,the determination results have high accuracy,good precision and repeatability,and short analysis time,and the correlation coefficients of the calibration curves of total hydrocarbon and methane are all greater than 0.999,this method is suitable for daily detection of non-methane total hydrocarbon in ambient air.
作者
梁有
辛朝
LIANG You;XIN Chao(Pingxiang Ecological Environment Monitoring Center of Jiangxi Province,Pingxiang 337000,China)
出处
《中国资源综合利用》
2022年第4期12-14,共3页
China Resources Comprehensive Utilization
关键词
非甲烷总烃
能力考核
气相色谱法
non-methane total hydrocarbon
capability assessment
gas chromatography
