大气中甲烷、总烃及非甲烷总烃测定岛津GDX502甲烷柱+总烃柱
大气中甲烷、总烃及非甲烷总烃测定岛津GDX502甲烷柱+总烃柱 详细信息：
名称：甲烷柱
型号：GDX-502
规格：2m*1/8，60-80目
名称：总烃柱
固定相：硅烷化玻璃微球
规格：2m*1/8，60-80目
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有许多方法，多数国jia采用气相色谱法。
由于直接测定NMHC所用仪器价格昂贵，浩瀚色谱（山东）应用技术开发有限公司采用双柱双氢火焰离子化检ce器气相色谱法分别测出总烃和甲烷的含量，两者之差为NMHC的含量。
大气中甲烷、总烃及非甲烷总烃测定岛津GDX502甲烷柱+总烃柱 测试谱图：
Determination of methane, total hydrocarbons and non-methane total hydrocarbons in the atmosphere Shimadzu GDX502 methane column + total hydrocarbon column
Determination of methane, total hydrocarbons and non-methane total hydrocarbons in the atmosphere Shimadzu GDX502 methane column + total hydrocarbon column Details:
Name: Methane column
Model: GDX-502
Specifications: 2m*1/8, 60-80 mesh
Name: Total Hydrocarbon Column
Stationary Phase: Silanized Glass Microspheres
Specifications: 2m*1/8, 60-80 mesh
Non-methane hydrocarbons (NMHC) usually refer to all volatile hydrocarbons cept methane (mainly C2-C8), also known as non-methane total hydrocarbons. When the concentration of NMHC in the atmosphere exceeds a certain concentration, in addition to being directly harmful to human health, it can also generate photochemical smog after sunlight exposure under certain conditions, causing harm to the environment and humans. There are many methods for monitoring NMHC in ambient air and industrial waste gas, most countries use gas chromatography.
Due to the high price of the instruments used for the direct determination of NMHC, Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used a double-column double-hydrogen flame ionization detector gas chromatography to measure the content of total hydrocarbons and methane respectively, and the difference between the two was the amount of NMHC. content.
Determination of methane, total hydrocarbons and non-methane total hydrocarbons in the atmosphere Shimadzu GDX502 methane column + total hydrocarbon column Test spectrum: