溶剂解吸-气相色谱法同时测定工作场所空气中乙酸乙烯酯和甲基丙烯酸甲酯

发布时间：2018-01-16 14:38

  本文关键词：溶剂解吸-气相色谱法同时测定工作场所空气中乙酸乙烯酯和甲基丙烯酸甲酯　出处：《中国职业医学》2015年03期 　论文类型：期刊论文

  更多相关文章： 乙酸乙烯酯 甲基丙烯酸甲酯 工作场所 空气 气相色谱法 溶剂解吸

【摘要】：目的建立同时测定工作场所空气中乙酸乙烯酯(VA)和甲基丙烯酸甲酯(MMA)的溶剂解吸-气相色谱方法。方法工作场所空气中的VA和MMA用对苯二酚浸渍活性炭吸附管采集,二硫化碳解吸,DB-FFAP毛细管气相色谱柱分离,火焰离子化检测器检测。结果本方法 VA和MMA分别在18.6~186.2和187.2~1 872.0 mg/L范围内线性关系良好,相关系数分别为0.999 97和0.999 98,最低检出浓度分别为0.7和0.8 mg/m3(以采集1.5 L空气样品计),平均解吸效率分别为92.6%~97.8%和95.9%~99.1%,批间相对标准偏差分别为1.8%~2.6%和0.5%~2.2%,采样效率均为100.0%,样品在4℃冰箱中可保存7 d。结论本方法操作简便,灵敏度高,精密度和准确度好,适用于工作场所空气中VA和MMA的同时检测。
[Abstract]:Objective to establish a simultaneous determination of vinyl acetate (VA) and methyl methacrylate (MMA) in the air of workplace. Methods VA and MMA in workplace air were collected by hydroquinone impregnated activated carbon adsorption tube. Separation of carbon disulfide by DB-FFAP Capillary Gas Chromatography. Results the linear range of VA and MMA was 186.2 and 187.2 mg/L, respectively. The correlation coefficients were 0.999 97 and 0.999 98, and the lowest detectable concentrations were 0.7 and 0.8 mg / m ~ (3), respectively. The average desorption efficiency was 92.8% and 95.9%, and the relative standard deviation between batches was 1.8% and 2.2%, respectively. The sample can be stored in refrigerator at 4 鈩，

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