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mao xi guan qi xiang se pu fa ce ding piao chen zhong duo huan fang ting
Author(s): 
Pages: 13-17
Year: Issue:  2
Journal: Journal of Hygiene Research

Keyword:  多环芳烃气相色谱分析环己烷索氏提取器变异系数空气飘尘石油醚毛细柱二苯并质谱分析;
Abstract: 飘尘中的多环芳烃在索氏提取器中用环己烷提取。提取液浓缩后在硅胶柱上净化。先用石油醚洗脱,再用环己烷-苯(4:1)洗脱,收集此馏份,进行气相色谱分析。一次气相色谱分析可在1小时内完成,主要异构对达到基线分离。3~7环8种多环芳烃10次测定的全程平均回收率在84.5%~101.4%之间。8种多环芳烃10次气相色谱测定的平均变异系数为5.95%。本方法已用于空气飘尘中多环芳烃的测定,可分出210个多环芳烃化合物。并用本系统对上述样品进行了气相色谱/质谱分析。
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