双通道双填充柱测定非甲烷总烃的探讨  

Determination of Total Non-Methane Hydrocarbons With Two Channels and Two Packed Columns

作　　者：王雪飞 李振 Wang Xuefei;Li Zhen(Shouguang environmental monitoring station,Shouguang 262700,China)

机构地区：[1]寿光市环境监测站,山东寿光262700

出　　处：《山东化工》2020年第21期106-108,121,共4页Shandong Chemical Industry

摘　　要：参照HJ604—2017和HJ38—2017测定总烃、甲烷和非甲烷总烃。对仪器条件进行优化,对采样容器的影响进行了分析,对校准曲线、精密度、准确度、加标回收率进行了测定,得出总烃精密度为0.4%~1.3%,甲烷精密度为0.3%~1.1%,总烃准确度为-5.5%~1.9%,甲烷准确度为-2.1%~1.9%,总烃加标回收率为94.7%,甲烷加标回收率为92.7%;该实验方法操作简单,分析速度快,结果令人满意。Total hydrocarbon,methane and non-methane total hydrocarbon were determined with reference to HJ604—2017 and HJ38—2017.Optimize the instrument condition,analyzes the influence of sampling container,the calibration curve,precision and accuracy,standard addition recoveries were determined,it is concluded that the total hydrocarbon precision is 0.4%~1.3%,0.3%~1.1%methane precision and accuracy of 5.5%~1.9%,and total hydrocarbon methane accuracy of 2.1%~1.9%,and total hydrocarbon standard addition recovery rate was 94.7%,the methane standard addition recovery rate is 92.7%;The experimental method is simple,fast and satisfactory.

关 键 词：气相色谱法 非甲烷总烃 六通阀 

分 类 号：X831[环境科学与工程—环境工程]