工作場(chǎng)所空氣中二乙氧基甲烷測(cè)定，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦?fàn)t煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，氨水，氨氣

工作場(chǎng)所空氣中二乙氧基甲烷測(cè)定
工作場(chǎng)所空氣中二乙氧基甲烷測(cè)定 詳細(xì)信息：

名稱：毛細(xì)管柱
規(guī)格：30m*0.32mm
型號(hào)：HH-5


浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司建立工作場(chǎng)所空氣中二乙氧基甲烷的溶劑解吸-氣相色譜測(cè)定方法.方法 空氣中二乙氧基甲烷經(jīng)活性炭管采集,二硫化碳解吸,毛細(xì)管色譜柱分離,氫火焰離子化檢測(cè)器檢測(cè).結(jié)果 本方法二乙氧基甲烷質(zhì)量濃度在0.87～34 800.00mg/L線性關(guān)系良好,相關(guān)系數(shù)為0.999 7,檢出限和定量下限分別為0.25 mg/L和0.90 mg/L,低檢出質(zhì)量濃度和低定量質(zhì)量濃度分別為0.17、0.60 mg/m3(以采集1.5L空氣計(jì)).批內(nèi)、批間精密度相對(duì)標(biāo)準(zhǔn)偏差(RSD)分別為2.93％～6.20％和3.67％～6.44％,平均解吸效率為94.22％～97.27％,樣品在室溫下少可保存7d.結(jié)論 本方法可用于監(jiān)測(cè)工作場(chǎng)所空氣中二乙氧基甲烷的水平.

工作場(chǎng)所空氣中二乙氧基甲烷測(cè)定  測(cè)試譜圖：



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: