摘要
本文分析了气相色谱法在测定固定污染源废气中总烃、甲烷和非甲烷总烃的应用,介绍如何利用实验室现有设备对甲烷标准气体进行稀释的具体方法。实验结果显示:甲烷标曲W=1.711611E-004×(A),相关系数0.99932;总烃标曲W=1.635883E-004×(A),相关系数:0.99901;测得甲烷标准偏差为0.7%。自行稀释气体绘制的标准曲线的相关系数和精密度都符合HJ 38-2017新标准中规定。
This paper analyzes the application of gas chromatography in the determination of total hydrocarbon,methane and non methane total hydrocarbon in the fixed pollution source. It introduces how to use the existing laboratory equipment to dilute the methane standard gas. The experimental results show that the standard curve of methane is W=1.711611 E-004 ×（A）,the correlation coefficient is 0.99932,the standard curve of the total hydrocarbon is W=1.635883 E-004×（A）,the correlation coefficient is 0.99901,and the standard deviation of methane is 0.7%.The correlation coefficient and precision of the standard curve drawn from the self diluted gas accord with the HJ 38-2017 new standard.
作者
修锐
孙银艳
张国莹
XIU Rui;SUN Yin-yan;ZHANG Guo-ying(Liaoning Tianyuan Environmental Monitoring Co.,LTD.,Benxi 117021,China;Liaoning Tongzheng Testing Co.,LTD.,Shenyang 110026,China)
关键词
甲烷标气
气相色谱法
标气稀释
methane standard gas
gas chromatography
standard gas dilution
