Non methane hydrocarbon (NMHC) refers to the general name of hydrocarbons other than methane. Atmospheric non methane hydrocarbons over a certain concentration, in addition to direct harm to human health, the sun exposure under certain conditions can produce photochemical smog, the environment and human harm.
Tengzhou City Xiangying Analysis Technology Co., Ltd. R & D out of glass microsphere filled column, can be measured from the test data of atmospheric CH4, total hydrocarbon and non methane total hydrocarbon (NMHC). At the same time of chromatography FID detector in the oxygen peak initially identified as "interference peaks", in analysis of negligible. The detection limit of the method: CH40.03 mg / m3, total hydrocarbon 0.04 mg / m3, NMHC 0.06 mg / m3. Variation coefficient: CH43.81%, total hydrocarbon 2.07%, the nhmc 5.07%. The recoveries: CH496.1%, the nhmc 96.1% ~ 98%.

非甲烷总烃(NMHC)指除甲烷以外的碳氢化合物的总称。大气中的非甲烷总烃超过一定浓度,除直接危害人体健康,经日光照射在一定条件下还能产生光化学烟雾,对环境和人类造成危害。
滕州市翔鹰分析技术有限公司研发出玻璃微球填充柱，可测得大气中的CH4、总烃及非甲烷总烃(NMHC)的测试数据.同时对色谱中FID检测器中出现的氧峰初步可认定为"干扰峰",在分析中可忽略不计.方法的检出限:CH40.03 mg/m3,总烃0.04 mg/m3,NMHC 0.06 mg/m3.变异系数:CH43.81%,总烃2.07%,NHMC 5.07%.加标回收率:CH496.1%,NHMC 96.1%～98%.