
摘要:建立了超声辅助分散液液微萃取结合气相色谱—质谱法测定水中16种多环芳烃的方法。对萃取液种类、体积、分散剂的种类体积、超声时间以及温度等参数进行优化。实验结果表明,方法线性范围为0.1~5.0μg/L,相关系数R2≥0.9901,检出限为0.001~0.05μg/L,加标回收率为83.5~102.3%,相对标准偏差(RSD)为3.8~12.7%。方法适用于水中16种多环芳烃的分析检测。
In this paper,a method of determination of 16 polycyclic aromatic hydrocarbons by ultrasonic assisted DLLME with GC-MS was established. The parameters such as the type, volume of extract, dispersant agent, ultrasonic time and temperature were optimized. The experimental results are as follows: linear range of this method is from 0.1to5.0μg/L,and the correlation coefficient R2≥0.9901. The detection limit is from0.001to0.05 μg/L, the standard recovery is 83.5-102.3%, and the relative standard deviation (RSD) is 3.8-12.7%. The method is suitable for the analysis and detection of 16 polycyclic aromatic hydrocarbons in water.
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