总烃,在相关环保标准《hj604-2017环境空气总烃、甲烷和非甲烷总烃的测定直接进样-气相色谱法》和《hj38-2017固定污染源废气总烃、甲烷和非甲烷总烃的测定气相色谱法》中定义为“氢火焰离子化检测器上有响应的气态有机化合物的总和”。而非甲烷总烃是指“氢火焰离子化检测器上有响应的除甲烷外的其他气态有机化合物的总和”。甲烷一般在空气中含量1ppm左右,性质比较稳定,基本不参与生光化学反应影响环境,因此污染物总量监测项目中主要倾向于监测非甲烷总烃(nmhc)的浓度。但甲烷也是促成大气温室效应的气体之一,研究显示,以单位分子数而言,甲烷的温室效应是二氧化碳的25倍,所以,甲烷在环境特征因子监测上也是十分有必要的。
浩瀚色谱(山东)应用技术开发有限公司,研发多通进样阀、一路载气通道、一路样气通道、两个定量环、两个色谱柱和一个检测器,完成样气中总烃、甲烷、非甲烷总烃含量的检测。
名称:甲烷复合填充柱
规格:1.5m*1/8,60-80目
编号:20230318003
名称:总烃柱
数量:2只
规格:1.5m*1/8,60-80目
*高使用温度:300°C
Total hydrocarbons are defined as "the sum of responsive gaseous organic compounds on a hydrogen flame ionization detector" in relevant environmental standards, "Hj604-2017 Determination of Total Hydrocarbons, Methane, and Non Methane in Ambient Air - Direct Injection Gas Chromatography" and "Hj38-2017 Determination of Total Hydrocarbons, Methane, and Non Methane in Exhaust Gas from Stationary Pollution Sources - Gas Chromatography". "Non methane total hydrocarbons refer to" the total amount of gaseous organic compounds other than methane that respond on the hydrogen flame ionization detector. ". Methane generally contains about 1 ppm in the air, with relatively stable properties, and does not participate in photochemical reactions that affect the environment. Therefore, in total pollutant monitoring projects, the main trend is to monitor the concentration of non methane total hydrocarbons (NMHC). However, methane is also one of the gases that contribute to the greenhouse effect in the atmosphere. Research shows that, in terms of unit molecular number, the greenhouse effect of methane is 25 times that of carbon dioxide. Therefore, methane is also very necessary for monitoring environmental characteristic factors.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed a multi way sampling valve, a carrier gas channel, a sample gas channel, two quantitative rings, two chromatographic columns, and a detector to complete the detection of total hydrocarbon, methane, and non methane total hydrocarbon content in the sample gas.
Name: Methane composite packed column
Specification: 1.5m * 1/8, 60-80 mesh
No.: 20230318003
Name: Total hydrocarbon column
Quantity: 2 pcs
Specification: 1.5m * 1/8, 60-80 mesh
*High service temperature: 300 ° C