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| Determination of Organophosphate Esters in Polar Waters by Liquid Chromatography-Mass Spectrometry with C18 Membrane Disk Extraction |
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| DOI： |
| KeyWord:organophosphate esters C18membrane disk extraction LC-MS/MS polar water |
| Author | Institution |
| GAO Yu-hang,NA Guang-shui,LI Rui-jing,GAO Hui,LIU Dan,CAO Sheng-kai |
1.上海海洋大学海洋科学学院;2.国家海洋环境监测中心国家海洋局近海岸海域生态环境重点实验室;3.辽宁师范大学化学化工学院 |
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| Abstract: |
| A rapid method was developed for the determination of 10 organophosphate esters(OPEs) in the Arctic waters by liquid chromatography-mass spectrometry(LC-MS/MS) combined with C18membrane disk extraction.By the optimized pretreatment and instrumental methods,10 OPEs were collected with C18membrane disk from 4 L water,and extracted with dichloromethane in ultrasonic extraction apparatus.After purification and concentration,the OPEs were analyzed by LC-MS/MS under positive electrospray ionization in selective reaction monitoring(SRM) mode.The linear correlation coefficients are in the range of 0.994 4-0.999 9.The recoveries of 10 OPEs in water samples ranged from 64.1% to 115% with the method detection limits of 0.08-0.55 ng/L.Furthermore,10 OPEs compounds in the Arctic waters samples were analyzed by this method,and the OPEs concentrations in the river and seawater were in the ranges of 0.64-6.64 ng/L and 0.09-2.03 ng/L,respectively. |
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