论文部分内容阅读
介绍一种改进型的气相色谱仪,应用十通阀双管定体积进样系统,可一次进样分析检测污染源排气中总烃/非甲烷总烃,重复性好、准确度高,相对标准偏差小于3%。该分析方法采用双柱并联单FID检测的流程优化方案,消除双FID因FID的灵敏度的差异性引起的误差,满足总烃和非甲烷总烃的检测要求。同时,双柱色谱仪还具有操作简单,工作效率高,准确性好的优点。
An improved gas chromatograph is introduced. The two-pipe fixed-volume injection system of ten-way valve can be used to detect the total hydrocarbon / non-methane total hydrocarbons in the exhaust of the pollution source through one-time injection analysis. The repeatability is good and the accuracy is high. Less than 3% deviation. The analysis method uses a two-column parallel single-FID detection process optimization program to eliminate the double FID error caused by the sensitivity of the FID error, to meet the total hydrocarbon and non-methane hydrocarbon detection requirements. At the same time, double-column chromatography also has the advantages of simple operation, high efficiency, good accuracy.