JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (4): 117-123.doi: 10.6040/j.issn.1672-3961.0.2017.002

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Fe3O4 magnetic dispersive solid-phase extraction with graphene for determination of organochlorine pesticides contaminants in water

WANG Mingyu1, SU Liqing2*, ZHANG Shaojun1, WANG Yu3   

  1. 1. Naval Architecture &
    Marine Engineering College, Shandong Jiaotong University, Weihai 264310, Shandong, China;
    2. Department of Endocrinology, Weihai Municipal Hospital, Weihai 264200, Shandong, China;
    3. Iodine Deficiency Disorders, Institute of Endemic Disease Control, Shandong Province, Jinan 250014, Shandong, China
  • Received:2017-01-03 Online:2017-08-20 Published:2017-01-03

Abstract: A novel dispersive solid-phase extraction(DSPE)analysis method was established by combining Fe3O4magnetic nanoparticles modified graphene as absorption material for determination of organochlorine pesticides(OCPs)in water. Magnetic nanoparticles modified graphene(MNG)was prepared by graphene oxide and Fe2+ through redox reaction in one step. Cationic surfactant CTAB was added as micelle forming agent, in which MNG was carrier of mixed micelles extraction system. Mixed micelle modified MNG had higher loading capacity than pure Fe3O4magnetic graphene. This method was applied to detect 29 kinds of OCPs in water. The detection limit was in the range of 1.5~5.0 ng/L. The recovery was ranged from 75.22% to 97.15%. The relative standard deviation(RSD)of repeatability was lower than 9.995%. As compared with ordinary solid-phase extraction, the sensitivity of new method increased 50~113 times. The method was suitable for simultneous determination of OCPs pesticide residues in water with high accuracy, sensitivity and less pre-treatment time, which was suitable for batch analysis of samples.

Key words: micelles extraction, Fe3O4 magnetic nanoparticles, pesticide residues, dispersive solid-phase extraction, organochlorine pesticide, graphene

CLC Number: 

  • X832
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