超声辅助液液微萃取-气相色谱-质谱法测定水中16种多环芳烃
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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R~2≥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 0.1 to 5.0 μg/L,and the correlation coefficient R~2≥0.9901.The detection limit is from 0.001 to 0.05 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.
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 0.1 to 5.0 μg/L,and the correlation coefficient R~2≥0.9901.The detection limit is from 0.001 to 0.05 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.
引文
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[3]武法伟,刘梦,董淑娟,等.液液萃取-气相色谱-质谱法测定水中27种半挥发性有机污染物[J].分析实验室,2017,36(5):551-556.
[4]曹江平,解启龙,周继梅,等.分散液液微萃取技术在食品分析中的应用进展[J].分析测试学报,2015,34(5):616-624.
[5]滕瑞菊,王欢,王雪梅,等.超声辅助分散液液微萃取-高效液相色谱法快速测定水样中的6种农药[J].分析化学,2017,45(2):275-284.
[6]Rezaee M,Assadi Y,Milani-Hosseini M R,et al.Determination of organic compounds in water using dispersive liquid-liquid microextraction[J].J Chromatogr A,2006,1116(1-2):1-9.
[7]Hammad R,Yaghoub A,Mohammad R M ,et al.Dispersive liquid-liquid microextraction combined with gas chromatography-flame photometric detection.Very simple,rapid and sensitive method for the determination of organophosphorus pesticides in water[J].J Choromatogr A,2006,1123(1):1-9.