haohan分析固定污染源废气 甲烷、总烃和非甲烷总烃毛细管空柱

Non-methane hydrocarbon (NMHC) generally refers to all volatile hydrocarbons other than methane (mainly the C2 ~ C8), also known as non-methane hydrocarbons. NMHC in the atmosphere above a certain concentration, in addition to direct harmful to human health, but under certain conditions by the sunlight can produce photochemical smog, environmental and human harm. Monitoring of ambient air and industrial emissions of NMHC.
Tengzhou City Technology Co., Ltd. Xiangying analysis using GC7990 gas chromatography capillary column analysis of the gas sample air NMHCs. The detection limit was 0.035mg / m3, measured in the range of verification results 0.12 ~ 8.0mg / m3.5 laboratories showed that the relative standard deviation of 3.4% ~ 9.2%, recovering 88.6% 114%

名称：总烃毛细管柱
编号：20220627001
规格：30m*0.53mm*25um
型号：HH-THC-30
*高使用温度：300°C
  非甲烷烃（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），又称非甲烷总烃。大气中的ＮＭＨＣ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产生光化学烟雾，对环境和人类造成危害。监测环境空气和工业废气中的ＮＭHC.

浩瀚色谱（山东）应用技术开发有限公司采用GC790气相色谱法，毛细管空柱分析气体样品中非甲烷烃。方法的检出限为０．０３５ｍｇ／ｍ３，测定范围为０．１２～８．０ｍｇ／ｍ３。５个实验室的验证实验结果表明，相对标准偏差为３．４％～９．２％，回收率为８８．６％～１１４％