气相色谱法测定环境空气中的丙烯酸酯类  

Determination of Acrylic Esters in Air by Gas Chromatography

作　　者：周民锋[1] 朱月芳[1] 秦宏兵[1] 尹燕敏[1] 孙欣阳[1] 

机构地区：[1]苏州市环境监测中心,江苏苏州215004

出　　处：《化学分析计量》2016年第3期37-40,共4页Chemical Analysis And Meterage

基　　金：国家环境保护标准管理项目(编号2013-22)

摘　　要：建立环境空气中7种丙烯酸酯类的气相色谱测定的方法。将活性炭吸附管与大气采样器连接,在0.5L/min流量下采集空气样品20 min,采样后的活性炭用1.0 mL二氯甲烷解吸,以氢火焰离子化为检测器,气相色谱法测定7种丙烯酸酯类的含量。结果表明,7种丙烯酸酯类的质量浓度在1~100μg/mL范围内与色谱峰面积线性关系良好,相关系数均大于0.999 5,当采样体积为10 L时,方法检出限为0.010~0.017 mg/m^3。各组分平均空白加标回收率为84%~120%,测定结果的相对标准偏差为2.2%~15.0%(n=6)。该方法样品处理简单,精密度与准确度高,检出限低,抗干扰,便于在实验室推广和应用。Determination of acrylic esters in air by gas chromatography was developed. Target compounds were sampled by activated carbon tubes and air sampler. After being sampled for 20 min with the flow rate of 0.5 min/L,then activated carbon was desorbed with 1.0 mL methylene chloride, seven acrylic esters were determined by gas chromatography with hydrogen flame ionization detector. The mass concentration of seven compounds and chromatographic peak area had good linear relationship in the range of 1–100 μg/m L with the correlation coefficients of more than 0.999 5. The detection limit ranged from 0.010 to 0.017 mg/m3. The recovery rate of spiked sample ranged from 84% to 120%, and the relative standard deviation of determination results was 2.2%–15.0%(n=6). The method is simple in sample processing, has high precision and accuracy, low detection limit and interference, it is easy to be promoted and applied in the laboratory.

关 键 词：丙烯酸酯类 气相色谱法 环境空气 

分 类 号：O657.7[理学—分析化学]