环境空气中的甲烷和非甲烷总烃含量是大气环境监测中的重要指标，可以简单直观的表征挥发性有机物（volatile organic compounds，简称vocs）污染状态。
3现有环境空气中甲烷和非甲烷总烃的测定方式有间接法和直接法两种。其中，间接法通过分别测定总烃和甲烷的浓度，计算二者的差值得到非甲烷总烃的浓度。此方法中总烃的测量中会受到氧气的干扰，以及测量系统对总烃和甲烷的测量均会存在不可消除的系统误差，使得总烃和非甲烷总烃浓度会有偏差，从而导致非甲烷总烃的测量浓度与实际浓度存在偏差。
名称：非甲烷总烃富集管
规格：HH-NMHC1754，60-80目
型号：HH-NMHC1754
应用：环境空气/固定污染源废气中非甲烷总烃的富集测定 气相色谱法
吸附技术是利用多孔性固体材料（吸附剂）的表面吸附力，将废气中的非甲烷总烃截留并富集，浩瀚色谱（山东）应用技术开发有限公司,，研制的《非甲烷总烃吸附管应用在岛津GC2014》测定固定污染源废气中的非甲烷总烃，富集效果良好，在热解析仪上取得了不错的效果。
应用：
安捷伦490在线/便携，4890,5890,6890,7820,7890,8860,8890
岛津GC-14C，GC-2010，GC-2014，GC-2030
赛默飞1310,1300,1610,1600
瓦里安3800系列
布鲁克PE580,590,680,690
磐诺A90，福立GC9790，华爱，天瑞，天美，GC7900，川仪，北分瑞利，东西电子，鲁南瑞虹，捷岛/科晓
The methane and non methane total hydrocarbon content in ambient air is an important indicator in atmospheric environmental monitoring, which can easily and intuitively characterize the pollution status of volatile organic compounds (VOCs).
There are two methods for determining methane and non methane total hydrocarbons in the existing ambient air: indirect method and direct method. Among them, the indirect method obtains the concentration of non methane total hydrocarbons by separately measuring the concentrations of total hydrocarbons and methane, and calculating the difference between the two. In this method, the measurement of total hydrocarbons will be affected by oxygen interference, and there will be unavoidable systematic errors in the measurement of total hydrocarbons and methane by the measurement system, resulting in deviations in the concentration of total hydrocarbons and non methane total hydrocarbons, leading to deviations between the measured concentration of non methane total hydrocarbons and the actual concentration.
Name: Non methane Total Hydrocarbon Enrichment Tube
Specification: HH-NMHC1754, 60-80 mesh
Model: HH-NMHC1754
Application: Enrichment determination of non methane total hydrocarbons in ambient air/fixed source exhaust gas by gas chromatography
Adsorption technology utilizes the surface adsorption force of porous solid materials (adsorbents) to intercept and enrich non methane total hydrocarbons in exhaust gas. Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. developed the "Application of Non Methane Total Hydrocarbon Adsorption Tube in Shimadzu GC2014" to determine non methane total hydrocarbons in solid pollution source exhaust gas. The enrichment effect is good and has achieved good results on a thermal analyzer.
Application:
Agilent 490 online/portable, 48905890689088608890
Shimadzu GC-14C, GC-2010, GC-2014, GC-2030
Thermo Fisher Scientific 1310130016101600
Varian 3800 Series
Brooke PE580590680690
Panno A90, Fuli GC9790, Huaai, Tianrui, Tianmei, GC7900， Chuanyi, Beifen Ruili, Dongxi Electronics, Lunan Ruihong, Jiedao/Kexiao
滕州市浩瀚色谱仪器技术服务有限公司
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