分析化学2012，Vol.40Issue(1)：159-163,5.DOI:10.3724/SP.J.1096.2012.10224
超声辅助乳化液液微萃取-气相色谱-质谱分析水中的人工合成麝香
Determination of Synthetic Musks in Water by Ultrasound-assisted Emulsion Microextraction-Gas Chromatography-Mass Spectrometry
摘要
Abstract
A new analytical method, based on ultrasound-assisted emulsification technique, liquid-liquid microextraction, and gas chromatography/mass spectrometry (GC/MS), was developed for the determination of eight synthetic musks in water samples. The pretreatment conditions, including the kind and volume of extraction solvent, extraction time, extraction temperature and ionic strength were studied. In this method, 50 μL chlorobenzene as extraction solvent was added to 10 mL water sample, then ultrasonic for 10 min (40 MHz), and centrifuged for 10 min (4000 r/min) to remove the organic phase for GC/MS analysis. Under the optimum separation and detection conditions, musks were confirmed and determined with internal standard method. The results show that enrichment factors for the samples were up to 200 times. The standard curves of 8 musks were linear in the concentration range of 0. 005 - 0. 4 μg/L with correlation coefficients of more than 0. 994. The limits of detection were 0. 3 - 0. 5 ng/L, the recoveries were ranged from 96. 2% to 102. 9% and relative standard deviations were ranged from 2. 3% to 4. 1%. The method is rapid, simple, accurate, and was suitable for quanlitative confirmation and quantitative analysis of synthetic musk in environmental water samples.关键词
水环境/人工合成麝香/超声辅助乳化液液微萃取/气相色谱-质谱联用Key words
Water sample/Synthetic musks/Ultrasound-assisted emulsification microextraction/Gas chromatography/mass spectrometry引用本文复制引用
虞锐鹏,车金水,何恩奇,钮伟民,宋启军,王利平..超声辅助乳化液液微萃取-气相色谱-质谱分析水中的人工合成麝香[J].分析化学,2012,40(1):159-163,5.基金项目
本文系国家自然基金(No.20977042)、江苏省卫生厅科研基金项目(No.H200865)和中国水产科学研究院重点开放实验室开放基金(No.YZ2009-05) （No.20977042）
