HH-5毛细管柱 工作场所空气中二乙氧基甲烷测定

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工作场所空气中二乙氧基甲烷测定
工作场所空气中二乙氧基甲烷测定 详细信息：

名称：毛细管柱
规格：30m*0.32mm
型号：HH-5


浩瀚色谱（山东）应用技术开发有限公司建立工作场所空气中二乙氧基甲烷的溶剂解吸-气相色谱测定方法.方法 空气中二乙氧基甲烷经活性炭管采集,二硫化碳解吸,毛细管色谱柱分离,氢火焰离子化检测器检测.结果 本方法二乙氧基甲烷质量浓度在0.87～34 800.00mg/L线性关系良好,相关系数为0.999 7,检出限和定量下限分别为0.25 mg/L和0.90 mg/L,低检出质量浓度和低定量质量浓度分别为0.17、0.60 mg/m3(以采集1.5L空气计).批内、批间精密度相对标准偏差(RSD)分别为2.93％～6.20％和3.67％～6.44％,平均解吸效率为94.22％～97.27％,样品在室温下少可保存7d.结论 本方法可用于监测工作场所空气中二乙氧基甲烷的水平.

工作场所空气中二乙氧基甲烷测定  测试谱图：



Determination of Diethoxymethane in the Air of Workplace
Determination of Diethoxymethane in the Air of Workplace Details:

Name: Capillary Column
Specification: 30m*0.32mm
Model: HH-5


Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. established a solvent desorption-gas chromatography method for the determination of diethoxymethane in the air in the workplace. Method The diethoxymethane in the air is collected by activated carbon tube, carbon disulfide desorbed, and separated by capillary chromatography column. Detection by hydrogen flame ionization detector. Results The mass concentration of diethoxymethane in this method has a good linear relationship between 0.87～34 800.00mg/L, and the correlation coefficient is 0.999 7. The detection limit and the lower limit of quantification are 0.25 mg/L and 0.90, respectively. mg/L, the lowest detected mass concentration and the lowest quantitative mass concentration were 0.17 and 0.60 mg/m3 (based on the collected air of 1.5L). The relative standard deviation (RSD) of precision within and between batches were 2.93%～6.20, respectively % And 3.67% to 6.44%, the average desorption efficiency is 94.22% to 97.27%, and the sample can be stored for at least 7 days at room temperature. Conclusion This method can be used to monitor the level of diethoxymethane in the air in the workplace.

Determination of diethoxymethane in the air of the workplace Test spectrum: