HH-NMHC1754吸附管 预增浓法测环境和厂界空气中非甲烷烃

预增浓法测环境和厂界空气中非甲烷烃，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，增塑剂，塑化剂，消毒剂，乙缩醛

预增浓法测环境和厂界空气中非甲烷烃
预增浓法测环境和厂界空气中非甲烷烃 详细信息：

固定相：混合

粒度：60-80目

规格：HH-NMHC1754，其他规格可定制

材质：玻璃，不锈钢

形状：直通型，U型

应用：环境空气/固定污染源废气中非甲烷总烃的富集

浩瀚色谱（山东）应用技术开发有限公司研究了采用一种电子制冷预增浓法,结合FID定量技术,在线监测环境及厂界空气中的非甲烷总烃和甲烷.本研究基于美国EPA TO-12的实验室非甲烷总烃测定方法,对预增浓技术加以改进,采用电子制冷技术和吸附技术相结合,用电子制冷代替液氮制冷,用低温吸附增浓技术代替深度冷冻增浓技术.从而为在线分析创造条件研究获得的在线分析技术的大优点是把大气环境空气和厂界环境空气中的非甲烷总烃的检测下限降低到一个新水平,使仪器检测下限可以达到亞ppb级·,从而解决了环境空气中非甲烷总烃(TVOC)的低浓度定性定量在线测试问题.并可以同时分离分析甲烷.研究确定了在线分析仪器的性和实用性.对甲烷,非甲烷总烃进行了定性,定量的研究,给出了方法的标定线性,重现性,小检出限等数据,并对对环境空气和厂界空气进行了实测.结果表明,使用这种在线分析技术和仪器,分析实用性强,准确度高,分析检测极限可以达到亚ppb级.用于连续在线监测取得比较满意的结果.

预增浓法测环境和厂界空气中非甲烷烃 测试谱图：


Pre-enrichment method for measuring non-methane hydrocarbons in the environment and the air at the plant boundary
Pre-enrichment method for measuring non-methane hydrocarbons in the environment and the air at the plant boundary Details:

Stationary phase: mixed

Granularity: 60-80 mesh

Specification: HH-NMHC1754, other specifications can be customized

Material: glass, stainless steel

Shape: straight type, U type

Application: Enrichment of non-methane total hydrocarbons in ambient air/stationary pollution source exhaust gas



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has studied the use of an electronic refrigeration pre-enrichment method, combined with FID quantitative technology, online monitoring of non-methane total hydrocarbons and methane in the environment and the air at the factory boundary. This research is based on the US EPA TO- The 12 laboratory non-methane total hydrocarbon determination method improves the pre-enrichment technology, uses a combination of electronic refrigeration technology and adsorption technology, uses electronic refrigeration to replace liquid nitrogen refrigeration, and uses low-temperature adsorption enrichment technology to replace deep freezing enrichment technology. Therefore, the greatest advantage of the online analysis technology obtained by the research is to reduce the detection limit of non-methane total hydrocarbons in the atmospheric ambient air and the ambient air of the plant to a new level, so that the lower detection limit of the instrument can reach the sub-ppb level. , Thus solving the problem of qualitative and quantitative online testing of low concentrations of non-methane total hydrocarbons (TVOC) in ambient air. And can separate and analyze methane at the same time. This study determines the reliability and practicability of online analytical instruments. For methane, non-methane total Hydrocarbon has been studied qualitatively and quantitatively, and the calibration linearity, reproducibility, minimum detection limit and other data of the method are given, and the ambient air and plant boundary air have been measured. The results show that the use of this online analysis technology With the instrument, the analysis is practical, the accuracy is high, and the analysis detection limit can reach the sub-ppb level. It is used for continuous online monitoring to obtain relatively satisfactory results.

Pre-enrichment method for measuring non-methane hydrocarbons in the environment and the air at the plant boundary Test spectrum: