甲烷柱應用之環(huán)境空氣測定，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯苯，植物油，6號溶劑殘留，裂解進樣器，消毒劑，乙酸

甲烷柱應用之環(huán)境空氣測定
甲烷柱應用之環(huán)境空氣測定 詳細信息：

名稱：甲烷柱
固定相：高分子小球
規(guī)格：3m*1/8
粒度：60-80目
型號：GDX-502
應用：環(huán)境空氣/固定污染源廢氣，總烴，甲烷及非甲烷總烴測定 氣相色譜法

2015年《中國環(huán)境狀況公報》顯示,大部分城市臭氧作為首要污染物的天數有增加趨勢。而大氣中的VOCs是產生臭氧重要的前體物,同時也能對PM2.5產生影響,成為監(jiān)測和控制的重點,被納入總量控制體系。上海、廣州、西安等地方已采用非甲烷總烴作為VOCs的評價指標。結合環(huán)境監(jiān)測分析工作的實際情況,探討了非甲烷總烴的樣品采集、進樣方式、樣品色譜柱,結果表明:與注射器采樣相比,氣袋氣密性和化學惰性好,保存樣品時間長;采用一次進樣,雙色譜柱GDX502/104、玻璃微球同時分離樣品,雙FID同時檢測,節(jié)約時間,避免誤差,更加快速、準確。

此柱柱效高，分離好，氧與甲烷完全分離，無干擾。

甲烷柱應用之環(huán)境空氣測定 測試譜圖及圖片：



Ambient air measurement for methane column application
Ambient air measurement for methane column application Details:

Name: Methane Column
Stationary phase: polymer pellets
Specification: 3m*1/8
Particle size: 60-80 mesh
Model: GDX-502
Application: Determination of ambient air/stationary pollution source exhaust gas, total hydrocarbon, methane and non-methane total hydrocarbon gas chromatography

According to the 2015 China Environmental Bulletin, the number of days when ozone is the primary pollutant in most cities has an increasing trend. VOCs in the atmosphere are the most important precursors for ozone generation, and they can also affect PM2.5. They have become the focus of monitoring and control and are included in the total amount control system. Shanghai, Guangzhou, Xi'an and other places have adopted non-methane total hydrocarbons as the evaluation index of VOCs. Combined with the actual situation of environmental monitoring and analysis work, the sample collection, sampling method, and sample chromatographic column of non-methane total hydrocarbons are discussed. The results show that: compared with syringe sampling, the air bag has good air tightness and chemical inertness, and the sample storage time is long ; Adopting one injection, dual chromatographic column GDX502/104, glass microspheres to separate samples at the same time, dual FID simultaneous detection, saving time, avoiding errors, faster and more accurate.

This column has high efficiency, good separation, and complete separation of oxygen and methane without interference.

Ambient air measurement test spectrum and pictures for methane column application: