溶剂解吸-气相色谱法测定工作场所空气中甲基丙烯酸缩水甘油酯

发布时间：2018-03-12 16:54

本文选题：工作场所　切入点：空气　出处：《中国职业医学》2015年01期 　论文类型：期刊论文

【摘要】：目的建立工作场所空气中甲基丙烯酸缩水甘油酯(GMA)的活性炭管采集溶剂解吸-气相色谱测定方法。方法采用活性炭管采集空气样品,二甲基甲酰胺-二硫化碳(1∶1,V/V)溶液解吸,经毛细管气相色谱柱分离,火焰离子化检测器检测。结果 GMA质量浓度在3.78~151.00 mg/L呈线性关系,相关系数为0.999 8,检出限为0.06 mg/L,定量下限为0.20 mg/L,最低检出浓度和最低定量浓度分别为0.02和0.07 mg/m3(以采集3.00 L空气计);平均解吸效率为94.00%~99.10%,批内、批间精密度分别为1.34%~2.46%和2.30%~4.11%。空气样品在-20℃冰箱中至少可保存7 d。结论本方法灵敏度高,精密度和准确度好,操作方法简单,适用于工作场所空气中GMA的采样与检测。
[Abstract]:Objective to establish in the air of workplace glycidyl methacrylate (GMA) method for the determination of collection solvent desorption gas chromatography. The activated carbon tube method using activated carbon tube to collect air samples, two methyl formamide - carbon disulfide (1: 1, V/V) solution desorption, by capillary gas chromatography column and flame ionization detector detection of GMA concentration. The results showed a linear relationship in 3.78~151.00 mg/L, the correlation coefficient was 0.9998, the detection limit was 0.06 mg/L, the lower limit of quantification was 0.20 mg/L, the minimum detectable concentration and lowest quantitative concentration were 0.02 and 0.07 mg/m3 (3 L to collect the air meter); the average desorption efficiency was 94.00%~99.10%, the intra batch and inter batch precision were 1.34%~2.46% and 2.30%~4.11%. air samples at -20 DEG C in the refrigerator can be stored for at least 7 d. conclusion the method has high sensitivity, good precision and accuracy, simple operation, suitable for the air of workplace Sampling and testing of GMA.

【作者单位】：广东省职业病防治院广东省职业病防治重点实验室;广州市第十二人民医院;
【基金】：广东省职业病防治重点实验室(2012A061400007) 广东省医学科研基金(B2013028,A2014072)
【分类号】：R134.4;O657.71

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