名称：GDX-502甲烷柱

规格：2m*1/8，60-80目

编号：20220630003

温度：250°C

名称：硅烷化玻璃微球填充柱

规格：2m*1/8，60-80目

型号：HH-THC-2

编号：20220630001

使用温度：300°C

应用：

HJ 38-2017 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

HJ 604-2017HJ 604-2017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


浩瀚色谱（山东）应用技术开发有限公司建立了双阀双柱单氢火焰检测器快速检测非甲烷总烃(NMHCs)的气相色谱分析方法,通过直接检测总烃和甲烷值,以及两者差值计算非甲烷总烃值,同时后切换十通阀将高沸点组分反吹出甲烷柱,有效避免了出峰较晚的高沸点组分对分析结果的影响。方法能准确测量总烃、甲烷和非甲烷总烃,分析时间小于1 min,标准曲线线性达到0.9999。方法精密度优于0.2%,检出限为甲烷0.02 mg/m~3,非甲烷总烃0.026 mg/m~3(以甲烷计),满足HJ/T38-1999性能指标要求。

GDX-502甲烷柱及HH-THC-2总烃柱  测试谱图：



GDX-502 methane column and HH-THC-2 total hydrocarbon column
GDX-502 methane column and HH-THC-2 total hydrocarbon column Details:

Name: GDX-502 Methane Column

Specifications: 2m*1/8, 60-80 mesh

Number: 20220630003

Temperature: 250°C





Name: Silanized Glass Microsphere Packed Column

Specifications: 2m*1/8, 60-80 mesh

Model: HH-THC-2

No.: 20220630001

Operating temperature: 300°C



application:

HJ 38-2017 Waste gas from stationary pollution sources-Determination of total hydrocarbons, methane and non-methane total hydrocarbons-Gas chromatography

HJ 604-2017HJ 604-2017 Ambient air-Determination of total hydrocarbons, methane and non-methane total hydrocarbons-Direct injection-gas chromatography


Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a gas chromatographic analysis method for the rapid detection of non-methane total hydrocarbons (NMHCs) with a double-valve double-column single-hydrogen flame detector. The non-methane total hydrocarbon value was calculated, and finally the ten-way valve was switched to backflush the high-boiling point components out of the methane column, which effectively avoided the influence of the high-boiling point components with late peaks on the analysis results. The method can accurately measure total hydrocarbons, methane and non-methane total hydrocarbons, the analysis time is less than 1 min, and the linearity of the standard curve reaches 0.9999. The precision of the method was better than 0.2%, and the detection limit was 0.02 mg/m~3 for methane and 0.026 mg/m~3 for non-methane total hydrocarbons (calculated as methane), which met the performance requirements of HJ/T38-1999.

Test spectrum of GDX-502 methane column and HH-THC-2 total hydrocarbon column: