GDX-502 应用气相色谱法检测空气中非甲烷总烃

固定相：高分子小球

GDX-502，2m*3mm，2m*4mm，2m*1/8，60-80目

甲烷柱

总烃柱

2m*3mm，2m*4mm，2m*1/8，硅烷化玻璃微球

非甲烷总烃（non methane total hydrocarbon，缩写NMHC）是存在于环境空气中除甲烷之外的所有碳氢化合物的总称。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。
滕州市浩瀚色谱仪器技术服务有限公司，采用气相色谱法检测空气中的非甲烷总烃需扣除会产生正干扰的氧峰,采用填充GDX-502担体的填充柱测甲烷时,可以将氧峰很好的分离出来,且能保持良好的稳定性,以此得出的氧浓度也可参与非甲烷总烃的计算。

应用气相色谱法检测空气中非甲烷总烃 图片：


Determination of non-methane total hydrocarbons in air by gas chromatography
Determination of non-methane total hydrocarbons in air by gas chromatography

Stationary phase: polymer pellet
GDX-502, 2m*3mm, 2m*4mm, 2m*1/8, 60-80 mesh
Methane column

Total hydrocarbon column
2m*3mm, 2m*4mm, 2m*1/8, silanized glass microspheres

Non methane total hydrocarbon (NMHC) is a general term for all hydrocarbons other than methane present in ambient air. The total non-methane hydrocarbons in the atmosphere exceed a certain concentration. In addition to being directly harmful to human health, under certain conditions, photochemical smog can also be generated by sunlight, causing harm to the environment and humans.
Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. uses gas chromatography to detect non-methane total hydrocarbons in the air and deducts the oxygen peak which will produce positive interference. When the methane is filled with a packed column filled with GDX-502, the oxygen peak can be very high. Good separation and good stability, the resulting oxygen concentration can also participate in the calculation of non-methane total hydrocarbons.

Determination of non-methane total hydrocarbons in air by gas chromatography