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| Analysis of Chlorophenols in Seawater Samples by Molecular Imprinted Magnetic Composite-based Dispersive Solid Phase Extraction Coupled with Liquid Chromatography |
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| DOI： |
| KeyWord:amino-functionalized molecular-imprinted magnetic material chlorophenols seawater dispersive solid phase extraction(dMSPE) |
| Author | Institution |
| WANG Xin-xin,YANG Jun,XIE Sheng-yu,CHEN Yang,LIU Fang-ling,SHEN Hao-yu*,XIA Qing-hua |
1.浙江大学宁波理工学院;2.湖北大学有机化工新材料湖北省协同创新中心有机功能分子合成与应用教育部重点实验室 |
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| Abstract: |
| A rapid,sensitive and accurate method for the simultaneous determination of 5 kinds of chlorophenols(CPs) in seawater samples by dispersive magnetic solid phase extraction-liquid chromatography(dMSPE-HPLC) was developed.The seawater samples were firstly enriched with pentachlorophenol-imprinted amino-functionalized nano-Fe3O4-polymer magnetic composite material(nFe3O4@MIPNH2-polymer),then separated on a C8 analytic column(250 mm×4.6 mm×5.0 μm) using methanol-NH4Ac solution(70∶30) as mobile phase and detected at 230 nm via UV detector.The results showed that under the optimal condition,the calibration curves were linear in the range of 1-5000 ng/L with correlation coefficients(r2) higher than 0.9989 for target chlorophenols.The spiked recoveries were between 86.5% and 98.8% with relative standard deviations(RSDs) of 0.8%-8.6%.The limits of detection(LODs) were in the range of 0.18-1.20 ng/L and the limits of quantitation(LOQs) were between 0.6 ng/L and 4.0 ng/L.The developed method could be applied in the routine analysis of chlorophenols in seawater samples. |
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