haohan居住区大气中三氯甲烷、四氯化碳的测定安捷伦玻璃柱5%SE-30/Chromosorb W AW DMCS M

本标准规定了用气相色谱法测定居住区大气中三氯甲烷、四氯化碳的浓度的方法。
本标准适用于居住区大气中三氯甲烷、四氯化碳浓度的测定。
也适用于公共场所空气中三氯甲烷、四氯化碳的测定。

浩瀚色谱（山东）应用技术开发有限公司建立二硫化碳解吸联合气相色谱测定居住区大气中三氯甲烷和四氯化碳的方法。方法溶剂解吸型活性炭采样管采集居住区大气中三氯甲烷和四氯化碳,二硫化碳解吸后使用毛细管色谱柱分离,氢焰检测器测定,以气相色谱分离图中的峰保留时间定性,以峰面积定量计算。结果进样量为1μl时,三氯甲烷检出限为2.2×10-3μg,四氯化检出限为2.7×10-3μg。使用溶剂解吸型活性炭管采样40 L,用二硫化碳1 ml吸样品,三氯甲烷检出限为0.053 mg/m3,四氯化检出限为0.066 mg/m3;定量限为0.18 mg/m3、0.24 mg/m3,范围为0.18~40.0、0.24~40.0 mg/m3。三氯甲烷3个浓度水平加标回收率为92.7%~93.5%,四氯化碳加标回收率为96.3%~97.9%。结论本实验建立的方法适用于我国居住区大气中三氯甲烷和四氯化碳浓度测定,可推广使用。

 

名称：玻璃柱安捷伦7820A

型号：5%SE-30/Chromosorb W AW DMCS MESH 60-80目

规格：2m*3mm

使用温度：300°C

应用：GB/T 16132-1995居住区大气中三氯甲烷、四氯化碳卫生检验标准方法 气相色谱法
 

This standard specifies the method for determining the concentration of chloroform and carbon tetrachloride in the atmosphere of residential areas by gas chromatography.
This standard applies to the determination of the concentration of chloroform and carbon tetrachloride in the atmosphere of residential areas.
It is also suitable for the determination of chloroform and carbon tetrachloride in the air of public places.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a method for the determination of chloroform and carbon tetrachloride in the atmosphere of residential areas by carbon disulfide desorption combined with gas chromatography. Methods Solvent desorption type activated carbon sampling tube was used to collect chloroform and carbon tetrachloride in the atmosphere of residential area. After desorption of carbon disulfide, capillary chromatographic column was used for separation, and hydrogen flame detector was used for determination. Quantitative calculation of area. Results When the injection volume was 1 μl, the detection limit of chloroform was 2.2×10-3 μg, and the detection limit of tetrachloride was 2.7×10-3 μg. Use solvent desorption type activated carbon tube to sample 40 L, and use 1 ml of carbon disulfide to absorb the sample, the detection limit of chloroform is 0.053 mg/m3, the detection limit of tetrachloride is 0.066 mg/m3; the limit of quantification is 0.18 mg/m3, 0.24 mg/m3, the range is 0.18~40.0, 0.24~40.0 mg/m3. The recoveries of standard addition of chloroform at three concentration levels were 92.7%-93.5%, and the recovery of carbon tetrachloride was 96.3%-97.9%. Conclusion The method established in this experiment is suitable for the determination of the concentrations of chloroform and carbon tetrachloride in the atmosphere of residential areas in my country, and can be widely used.


Name: Glass column Agilent 7820A

Model: 5%SE-30/Chromosorb W AW DMCS MESH 60-80 mesh

Specifications: 2m*3mm

Operating temperature: 300°C

Application: GB/T 16132-1995 Standard method for hygienic inspection of chloroform and carbon tetrachloride in the atmosphere of residential areas-Gas chromatography