气袋直接进样法测定丙烯腈

采用气袋直接进样法测定环境和污染源空气中的丙烯腈。结果表明:丙烯腈在0.4～99.5 mg/m3浓度范围内具有良好的线性关系,相关系数为0.999 8。在低、中、高3个添加水平回收率为88.9%~100%,相对标准偏差为0.6%~4.7%,均能较好地满足实验室分析要求。

Determination of Acrylonitrile by Direct Injection into Airbag

Acrylonitrile in air environment and air pollution sources was determined by direct injection into airbag. The results showed that calibration curve of acrylonitrile in concentration range of 0.4-99.5 mg/m^3 was linear, and the correlation coefficient was 0.999 8. The recoveries at three levels of low, middle and high were in the range of 88.9%-100%, relative standard deviation were in the range of 0.6%-4.7%, which could met the requirements of lab analysis.