毛细管柱气相色谱法测定工作场所空气中的丙烯腈
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摘要
为了建立采用毛细管柱测定工作场所空气中丙烯腈浓度的方法,使用活性炭管采集工作场所空气中的丙烯腈,二硫化碳溶液解吸,毛细管柱分离后,用氢火焰离子化检测器检测。结果显示:丙烯腈的检出限为0.73μg/ml,相关系数为0.9998,解吸效率94.3%～104.7%,相对标准偏差为0.41%～1.0%。因此,该方法灵敏度高、检测准确、操作性强,可提高丙烯腈的检测效率,适用于工作场所空气中丙烯腈的分析。
Acrylonitrile determination method in workplace atmosphere via capillary column gas chromatograph was established. The sample was first collected by activated carbon tube, and then desorbed by carbon disulfide solution. A capillary column was used for separation and a flame icon detector was applied for the test. The result shows that the detection limit of acrylonitrile was 0.73μg/ml with the correlation coefficient of 0.9999.The desorption efficiency was 94.3%～104.7%, and the relative standard deviation was 0.41%～1.0%.The research proves that this method has high sensitivity, accuracy and operability and can improve the detection efficiency of acrylonitrile, which is suitable for analysis of acrylonitrile in workplace air.
Acrylonitrile determination method in workplace atmosphere via capillary column gas chromatograph was established. The sample was first collected by activated carbon tube, and then desorbed by carbon disulfide solution. A capillary column was used for separation and a flame icon detector was applied for the test. The result shows that the detection limit of acrylonitrile was 0.73μg/ml with the correlation coefficient of 0.9999.The desorption efficiency was 94.3%～104.7%, and the relative standard deviation was 0.41%～1.0%.The research proves that this method has high sensitivity, accuracy and operability and can improve the detection efficiency of acrylonitrile, which is suitable for analysis of acrylonitrile in workplace air.
引文
[1]崔小明.我国丙烯腈生产技术进展及市场分析[J].上海化工,2015,40(11):32-36.
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[3]国家卫生和计划生育委.工作场所空气有毒物质测定第133部分:乙腈、丙烯腈和甲基丙烯腈:GBZ/T 300.133-2017[S].北京:中国标准出版社,2017.
[4]王艳洁,那广水,王震,等.检出限的涵义和计算方法[J].化学分析计量,2012,21(5):85-88.
[5]孙多志,施均,左莹,等.食品包装用丙烯腈-苯乙烯共聚物和橡胶改性树脂及成型品中残留单体和溶剂的测定[J].理化检验(化学分册),2011,47(12):1443-1445.
[6]袁丽凤,邬蓓蕾,崔家玲,等.丙烯腈-丁二烯-苯乙烯(ABS)塑料中残留单体的溶解沉淀-气相色谱法测定[J].分析测试学报,2008,27(10):1095-1098.
[7]周相娟,常宇文,李伟,等.自动顶空毛细管柱气相色谱法测定食品包装中残留丙烯腈单体[J].食品安全与检测2008,60(10):240-242.
[8]王兴民,周延生,李景超,等.毛细管柱气相色谱法测定空气和废气中的丙烯腈[J].现代农业科技,2012,(9):17,20.
[9]黄璐璐,莫达松,苏云鹏,等.气相色谱-质谱联用法测定空气中的丙烯腈[J].化学分析计量,2017,26(5):40-42.
[2]卫生部.工作场所有害因素职业接触限值第1部分:化学有害因素:GBZ 2.1-2007[S].北京:人民卫生出版社,2007.
[3]国家卫生和计划生育委.工作场所空气有毒物质测定第133部分:乙腈、丙烯腈和甲基丙烯腈:GBZ/T 300.133-2017[S].北京:中国标准出版社,2017.
[4]王艳洁,那广水,王震,等.检出限的涵义和计算方法[J].化学分析计量,2012,21(5):85-88.
[5]孙多志,施均,左莹,等.食品包装用丙烯腈-苯乙烯共聚物和橡胶改性树脂及成型品中残留单体和溶剂的测定[J].理化检验(化学分册),2011,47(12):1443-1445.
[6]袁丽凤,邬蓓蕾,崔家玲,等.丙烯腈-丁二烯-苯乙烯(ABS)塑料中残留单体的溶解沉淀-气相色谱法测定[J].分析测试学报,2008,27(10):1095-1098.
[7]周相娟,常宇文,李伟,等.自动顶空毛细管柱气相色谱法测定食品包装中残留丙烯腈单体[J].食品安全与检测2008,60(10):240-242.
[8]王兴民,周延生,李景超,等.毛细管柱气相色谱法测定空气和废气中的丙烯腈[J].现代农业科技,2012,(9):17,20.
[9]黄璐璐,莫达松,苏云鹏,等.气相色谱-质谱联用法测定空气中的丙烯腈[J].化学分析计量,2017,26(5):40-42.