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工作场所空气中甲醇测定石墨化碳黑填充柱
工作场所空气中甲醇测定石墨化碳黑填充柱 详细信息：

名称：填充柱

色谱固定液：5%聚乙二醇
载体：石墨炭黑80-120目

规格：2m*3mm，2m*1/8

型号：5%Carbowax 20M Carbopack B

应用： HJ T33-1999 固定污染源排气中甲醇的测定气相色谱法

浩瀚色谱（山东）应用技术开发有限公司建立空气中甲醇测定的毛细管柱气相色谱法.方法 采用硅胶管吸附空气中甲醇,经水解吸,用5%Carbowax 20M Carbopack B柱气相色谱仪测定.结果 甲醇浓度在0～250 μg/ml范围内线性关系良好,线性方程为y=5.79x+25.67,相关系数r=0.999 7,检出限为0.10 μg/ml,若采集1.5 L空气样品,则低检出浓度为0.07 mg/m3,平均加标回收率91.91％～97.09％.结论 本方法灵敏、准确,适用于工作场所空气中甲醇的测定.

工作场所空气中甲醇测定石墨化碳黑填充柱  测试谱图：



Graphitized carbon black packed column for determination of methanol in the air of workplace
Graphitized Carbon Black Packed Column for Determination of Methanol in Workplace Air Details:

Name: Packed column

Chromatographic stationary liquid: 5% polyethylene glycol
Carrier: Graphite carbon black 80-120 mesh

Specification: 2m*3mm, 2m*1/8

Model: 5% Carbowax 20M Carbopack B

Application: HJ T33-1999 Determination of Methanol in Exhaust from Stationary Pollution Sources Gas Chromatography



Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. established a capillary column gas chromatography method for the determination of methanol in the air. The method uses a silica gel tube to absorb the methanol in the air, after hydrolysis and adsorption, it is determined with a 5% Carbowax 20M Carbopack B column gas chromatograph. Result methanol The concentration has a good linear relationship in the range of 0～250 μg/ml, the linear equation is y=5.79x+25.67, the correlation coefficient is r=0.999 7, and the detection limit is 0.10 μg/ml. If 1.5 L air samples are collected, the lowest detection The concentration was 0.07 mg/m3, and the average recovery rate was 91.91%～97.09%. Conclusion This method is sensitive and accurate, and is suitable for the determination of methanol in the air of workplaces.

Determination of Graphitized Carbon Black Packed Column with Methanol in the Workplace Air Test Spectrum: 



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