福立GDX-104甲烷柱2m*4mm

GDX—104色谱担体作固定相,
名称：GDX-104填充柱
粒度：60-80目
规格：2m*4MM
*高温度：250℃    
编号：20230407001
应用：福立GC-9790II，GC-9790Plus，GC-9720Plus
柱效高，分离好，结果满意。


浩瀚色谱（山东）应用技术开发有限公司建立了罐采样-气相色谱法测定环境空气中非甲烷总烃的分析方法。用罐采集环境空气样品至微负压状态,经除烃空气加压后,用气相色谱仪进行分析。并对氮气空白、除烃空气、样品保存期限、不同压力进样、不同正压压力进样、不同湿度、不同种类物质对总烃的贡献等进行了研究,在*佳实验条件下,非甲烷总烃的方法检出限为0.04μmol/mol,标准曲线相关系数均大于0.999 5,低、中、高浓度水平测定结果相对标准偏差均小于2.0%,低、中、高浓度的质控样品相对误差均小于2.0%。利用该方法对环境空气样品进行了检测分析,该法完全满足国家标准质控的要求,适用于环境空气和污染源无组织废气中非甲烷总烃的准确测定。
 
GDX-104 chromatographic support as stationary phase,

Name: GDX-104 filled column

Particle size: 60-80 mesh

Specification: 2m * 4MM

Maximum temperature: 250 ℃

No.: 20230407001

Application: Fuli GC-9790II, GC-9790Plus, GC-9720Plus

High column efficiency, good separation, and satisfactory results.




Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established an analytical method for the determination of non methane total hydrocarbons in ambient air using tank sampling and gas chromatography. Collect environmental air samples in a tank to a slightly negative pressure state, and then pressurize them with hydrocarbon removal air before analyzing them using a gas chromatograph. And the contribution of nitrogen blank, hydrocarbon removal air, sample shelf life, different pressure injection, different positive pressure injection, different humidity, and different types of substances to total hydrocarbons was studied. Under the optimal experimental conditions, the detection limit of the method for non methane total hydrocarbons was 0.04 μ The correlation coefficients of the standard curve in mol/mol are all greater than 0.999 5. The relative standard deviation of the measurement results at low, medium, and high concentration levels is less than 2.0%, and the relative error of the quality control samples at low, medium, and high concentrations is less than 2.0%. The method was used to detect and analyze environmental air samples, and it fully meets the requirements of national standard quality control. It is suitable for the accurate determination of non methane total hydrocarbons in environmental air and unorganized waste gas from pollution sources.