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| Determination of 16 Herbicides in Seawater by Solid Phase Extraction/Gas Chromatography-Mass Spectrometry |
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| DOI： |
| KeyWord:herbicides seawater gas chromatography-mass spectrometry(GC-MS) solid phase extraction(SPE) |
| Author | Institution |
| HAN Dian-feng,GONG Xiang-hong,LIU Xiao-jing,REN Li-hua,QIAO Dan,LUO Jing-jing,XU Ying-jiang*,XIAO Lei-lei |
1.山东省海洋资源与环境研究院，山东省海洋生态修复重点实验室;2.上海海洋大学食品学院;3.中国科学院烟台海岸带研究所，海岸带生物学与生物资源利用重点实验室 |
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| Abstract: |
| A method was established for the determination of 16 kinds of herbicides in seawater by gas chromatography-mass spectrometry(GC-MS).The samples were concentrated,purified and eluted on an HLB solid phase extraction cartridge,and the elutions were evaporated to near dryness by nitrogen blow.Then the analytes were dissolved with ethyl acetate,determined by GC-MS in selected ion monitoring mode and quantified by the external standard method.The experimental results showed that good linearities for cynazine and pendimethalin existed in the range of 4.0-200 μg/L with their detection limits of 10.0 ng/L.The other 14 herbicides showed good linearities in the range of 2.0-100 μg/L,and their detection limits were all 5.0 ng/L.The average recoveries ranged from 78.3% to 115.0% with relative standard deviations of 4.4%-9.9%.The method is simple and accurate,and is specially suitable for the detection of 16 kinds of herbicides in seawater. |
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