PMID- 19690840
OWN - NLM
STAT- MEDLINE
DCOM- 20100120
LR  - 20161125
IS  - 1618-2650 (Electronic)
IS  - 1618-2642 (Linking)
VI  - 395
IP  - 4
DP  - 2009 Oct
TI  - Preparation of magnetic molecularly imprinted polymer for rapid determination of 
      bisphenol A in environmental water and milk samples.
PG  - 1125-33
LID - 10.1007/s00216-009-3020-5 [doi]
AB  - A magnetic molecularly imprinted polymer (M-MIP) of bisphenol A (BPA) was 
      prepared by miniemulsion polymerization. The morphological and magnetic 
      characteristics of the M-MIP were characterized by Fourier-transform infrared 
      spectroscopy, transmission electron microscopy, and vibrating sample 
      magnetometry. The adsorption capacities of the M-MIP and the nonimprinted polymer 
      were investigated using static adsorption tests, and were found to be 390 and 270 
      mg g(-1), respectively. Competitive recognition studies of the M-MIP were 
      performed with BPA and the structurally similar compound DES, and the M-MIP 
      displayed high selectivity for BPA. A method based on molecularly imprinted 
      solid-phase extraction assisted by magnetic separation was developed to extract 
      BPA from environmental water and milk samples. Various parameters such as the 
      mass of sorbent, the pH of the sample, the extraction time, and desorption 
      conditions were optimized. Under selected conditions, extraction was completed in 
      15 min. High-performance liquid chromatography with UV detection was employed to 
      determine BPA after the extraction. For water samples, the developed method 
      exhibited a limit of detection (LOD) of 14 ng L(-1), a relative standard 
      deviation of 2.7% (intraday), and spiked recoveries ranging from 89% to 106%. For 
      milk samples, the LOD was 0.16 microg L(-1), recoveries ranged from 95% to 101%, 
      and BPA was found in four samples at levels of 0.45-0.94 microg L(-1). The 
      proposed method not only provides a rapid and reliable analysis but it also 
      overcomes problems with conventional solid-phase extraction (SPE), such as the 
      packing of the SPE column and the time-consuming nature of the process of loading 
      large-volume samples.
FAU - Ji, Yongsheng
AU  - Ji Y
AD  - State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 
      730000, China.
FAU - Yin, Juanjuan
AU  - Yin J
FAU - Xu, Zhigang
AU  - Xu Z
FAU - Zhao, Chuande
AU  - Zhao C
FAU - Huang, Huayu
AU  - Huang H
FAU - Zhang, Haixia
AU  - Zhang H
FAU - Wang, Chunming
AU  - Wang C
LA  - eng
PT  - Journal Article
DEP - 20090819
PL  - Germany
TA  - Anal Bioanal Chem
JT  - Analytical and bioanalytical chemistry
JID - 101134327
RN  - 0 (Benzhydryl Compounds)
RN  - 0 (Methacrylates)
RN  - 0 (Phenols)
RN  - 0 (Polymers)
RN  - 0 (Pyridines)
RN  - 0 (Water Pollutants, Chemical)
RN  - 7BK5G69305 (ethylene dimethacrylate)
RN  - DT4UV4NNKX (2-vinylpyridine)
RN  - MLT3645I99 (bisphenol A)
SB  - IM
MH  - Adsorption
MH  - Animals
MH  - Benzhydryl Compounds
MH  - Chromatography, High Pressure Liquid
MH  - Hydrogen-Ion Concentration
MH  - *Magnetics
MH  - Methacrylates/chemistry
MH  - Milk/*chemistry
MH  - Molecular Imprinting/*methods
MH  - Phenols/*analysis
MH  - Polymers/*chemical synthesis/chemistry
MH  - Porosity
MH  - Pyridines/chemistry
MH  - Solid Phase Extraction
MH  - Surface Properties
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2009/08/20 09:00
MHDA- 2010/01/21 06:00
CRDT- 2009/08/20 09:00
PHST- 2009/05/07 00:00 [received]
PHST- 2009/07/29 00:00 [accepted]
PHST- 2009/07/16 00:00 [revised]
PHST- 2009/08/20 09:00 [entrez]
PHST- 2009/08/20 09:00 [pubmed]
PHST- 2010/01/21 06:00 [medline]
AID - 10.1007/s00216-009-3020-5 [doi]
PST - ppublish
SO  - Anal Bioanal Chem. 2009 Oct;395(4):1125-33. doi: 10.1007/s00216-009-3020-5. Epub 
      2009 Aug 19.