PMID- 23465129
OWN - NLM
STAT- MEDLINE
DCOM- 20130813
LR  - 20130307
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1283
DP  - 2013 Mar 29
TI  - Magnetic molecularly imprinted nanoparticles based on grafting polymerization for 
      selective detection of 4-nitrophenol in aqueous samples.
PG  - 82-8
LID - S0021-9673(13)00215-X [pii]
LID - 10.1016/j.chroma.2013.01.093 [doi]
AB  - In this study, an analytical procedure for the selective extraction and detection 
      of 4-nitrophenol (4-NP) was investigated by using of molecularly imprinted 
      polymer on the surface of magnetic nanoparticles (MNPs). The magnetic 
      nanoparticles were modified by tetraethyl orthosilicate (TEOS) and 
      3-methacryloxypropyl trimethoxysilane (MPTS) before imprinting. The magnetic 
      molecularly imprinted polymer (MMIP) was polymerized at the surface of modified 
      MNPs by using of methacrylic acid (MAA) as functional monomer, 4-NP as template 
      and ethylene glycol dimethacrylate (EGDMA) as cross-linker. Experimental design 
      by the Taguchi method was used for the optimization of synthesis procedure of 
      imprinted polymer. The resulting MMIP showed high adsorption capacity, proper 
      selectivity and fast kinetic binding for the template molecule. It was 
      characterized by Fourier transform infrared (FT-IR) analysis, scanning electron 
      microscopy (SEM) and transmission electron microscopy (TEM) methods. The maximum 
      adsorption capacity of MMIP was obtained as 57.8mgg(-1) and it took about 2h to 
      achieve the equilibrium state. The adsorption curve of MMIP was also fitted with 
      the Freundlich isotherm equation. The assay exhibited a linear range of 
      25-1000mugL(-1) for 4-NP with the correlation coefficient (R(2)) of 0.995. The 
      method was also examined for the analysis of 4-NPs in seawater. For recovery 
      evaluation, the seawater samples were spiked at two concentration levels of 50 
      and 100mugL(-1) of 4-NPs and the recovery values were in the range of 79.3-99.8%. 
      The relative standard deviations (RSD) for the recoveries were less than 5.2%.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Mehdinia, Ali
AU  - Mehdinia A
AD  - Department of Marine Science, Iranian National Institute for Oceanography, 
      Tehran, Iran. mehdinia@inio.ac.ir
FAU - Baradaran Kayyal, Tohid
AU  - Baradaran Kayyal T
FAU - Jabbari, Ali
AU  - Jabbari A
FAU - Aziz-Zanjani, Mohammad Ovais
AU  - Aziz-Zanjani MO
FAU - Ziaei, Ehsan
AU  - Ziaei E
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130129
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Magnetite Nanoparticles)
RN  - 0 (Methacrylates)
RN  - 0 (Nitrophenols)
RN  - 0 (Silanes)
RN  - 0 (Water Pollutants, Chemical)
RN  - Y92ZL45L4R (4-nitrophenol)
SB  - IM
MH  - Adsorption
MH  - Magnetite Nanoparticles/*chemistry
MH  - Methacrylates/chemistry
MH  - Molecular Imprinting/*methods
MH  - Nitrophenols/*analysis
MH  - Reproducibility of Results
MH  - Seawater/*chemistry
MH  - Silanes/chemistry
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2013/03/08 06:00
MHDA- 2013/08/14 06:00
CRDT- 2013/03/08 06:00
PHST- 2012/10/27 00:00 [received]
PHST- 2013/01/17 00:00 [revised]
PHST- 2013/01/22 00:00 [accepted]
PHST- 2013/03/08 06:00 [entrez]
PHST- 2013/03/08 06:00 [pubmed]
PHST- 2013/08/14 06:00 [medline]
AID - S0021-9673(13)00215-X [pii]
AID - 10.1016/j.chroma.2013.01.093 [doi]
PST - ppublish
SO  - J Chromatogr A. 2013 Mar 29;1283:82-8. doi: 10.1016/j.chroma.2013.01.093. Epub 
      2013 Jan 29.