Journal
MARINE POLLUTION BULLETIN
Volume 64, Issue 12, Pages 2656-2662Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2012.10.011
Keywords
Malachite green; Molecularly imprinted polymer; Solid-phase extraction; Seawater and seafood
Funding
- National Natural Science Foundation of China Fund [41076065]
- Major State Basic Research Development Program of China (973 Program) [2010CB428701]
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In this paper, a highly selective sample cleanup procedure combining molecular imprinting technique (MIT) and solid-phase extraction (SPE) was developed for the isolation of malachite green in seawater and seafood samples. The molecularly imprinted polymer (MIP) was prepared using malachite green as the template molecule, methacrylic acid as the functional monomer and ethylene glycol dimethacrylate as the cross-linking monomer. The imprinted polymer and non-imprinted polymer were characterized by scanning electron microscope and static adsorption experiments. The MIP showed a high adsorption capacity and was used as selective sorbent for the SPE of malachite green. An off-line molecularly imprinted solid-phase extraction (MISPE) method followed by high-performance liquid chromatography with diodearray detection for the analysis of malachite green in seawater and seafood samples was also established. Finally, five samples were determined. The results showed that malachite green concentration in one seawater sample was at 1.30 mu g L-1 and the RSD (n = 3) was 4.15%. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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