GDX-104甲烷柱3m*3mm 测定固定污染源废气中非甲烷总烃

测定固定污染源废气中非甲烷总烃，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，6号溶剂残留，裂解进样器...

测定固定污染源废气中非甲烷总烃
测定固定污染源废气中非甲烷总烃 详细信息：

名称：填充柱
固定相：高分子小球
规格：3m*3mm
型号：GDX-104
应用： 测定固定污染源废气中非甲烷总烃

滕州市浩瀚色谱仪器技术服务有限公司，以HJ/T 38-1999为基础,针对气相色谱法测定污染源废气中非甲烷总烃存在的诸多问题进行探讨,在总烃出峰峰形、废气氧峰值测定、高沸点物质干扰等方面做了研究试验。结果表明,1ml定量环容易造成总烃出现平头峰,改成0.25ml定量环能得到好的峰形;非甲烷总烃的检出限为0.04 mg/m^3（以碳计）;氧峰值与氧量具有线性关系,应根据氧量判断氧峰值大小,而不是统一扣除除烃空气氧峰值;废气中存在高沸点组分时,容易吸附于采样容器内壁,将样品加热100℃再测试可提高该组分的检出率。


Determination of non-methane total hydrocarbons in waste gas from stationary sources
Determination of non-methane total hydrocarbons in exhaust gas from stationary sources. Details:

Name: Packed column
Stationary phase: polymer pellets
Specification: 3m*3mm
Model: GDX-104
Application: Determination of non-methane total hydrocarbons in waste gas from stationary sources

Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd., based on HJ/T 38-1999, discusses the many problems in the determination of non-methane total hydrocarbons in the exhaust gas of pollution sources by gas chromatography. The peak shape of total hydrocarbons and the peak oxygen peak Research and experiments have been done in the areas of determination and interference of high-boiling substances. The results show that 1ml quantitative loop is likely to cause flat peaks of total hydrocarbons, and changing to 0.25ml quantitative loop can get a good peak shape; the detection limit of non-methane total hydrocarbons is 0.04 mg/m^3 (calculated by carbon); oxygen peak It has a linear relationship with the amount of oxygen, and the peak value of oxygen should be judged based on the amount of oxygen, rather than uniformly deducting the peak of oxygen in the air except for hydrocarbons; when there are high boiling point components in the exhaust gas, it is easy to adsorb on the inner wall of the sampling container, and the sample is heated to 100°C before testing Can improve the detection rate of this component.


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