安捷伦GDX502甲烷柱60-80目2m*1/8

非甲烷总烃(NMHC)通常是指除甲烷以外的所有可挥发的碳氢化合物(其中主要是C2~C8)。研究发现NMHC组分十分复杂,它主要来源于汽油燃烧、垃圾焚烧、溶剂蒸发和废物提炼等。大气中非甲烷总烃超过一定浓度,除直接对人体健康有害外,在一定条件下经日光照射还能导致产生光化学.

浩瀚色谱（山东）应用技术开发有限公司用双柱双氢火焰离子化检测器气相色谱法测定环境空气中非甲烷总烃。方法的检出限:总烃为0.02mg/m3,甲烷为0.02 mg/m3,非甲烷总烃为0.02 mg/m3。变异系数:总烃为0.65%,甲烷为0.55%,非甲烷总烃为3.06%。加标回收率:总烃为101.2%~102.7%,甲烷为100.7%~101.8%。该方法可行性良好,适用于环境空气中非甲烷总烃的测定。

名称：甲烷柱
规格：2m*1/8
型号：GDX-502
应用：甲烷，总烃，非甲烷总烃的测定/固定污染源废气/环境空气
 
Non-methane total hydrocarbons (NMHC) generally refer to all volatile hydrocarbons (mainly C2~C8) except methane. The study found that NMHC components are very complex, which mainly come from gasoline combustion, waste incineration, solvent evaporation and waste extraction. When the concentration of non-methane total hydrocarbons in the atmosphere exceeds a certain concentration, in addition to being directly harmful to human health, under certain conditions, sunlight exposure can also lead to photochemical production.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses a dual-column double-hydrogen flame ionization detector gas chromatography method to determine non-methane total hydrocarbons in ambient air. The detection limits of the method were as follows: total hydrocarbons were 0.02 mg/m3, methane was 0.02 mg/m3, and non-methane total hydrocarbons were 0.02 mg/m3. Coefficient of variation: total hydrocarbons were 0.65%, methane was 0.55%, and non-methane total hydrocarbons were 3.06%. The recovery rate of standard addition: the total hydrocarbons are 101.2%~102.7%, and the methane is 100.7%~101.8%. The method is feasible and suitable for the determination of non-methane total hydrocarbons in ambient air.

Name: Methane column
Specifications: 2m*1/8
Model: GDX-502
Application: Determination of methane, total hydrocarbons, non-methane total hydrocarbons/stationary pollution source exhaust gas/ambient air