PMID- 31980260
OWN - NLM
STAT- MEDLINE
DCOM- 20200605
LR  - 20200605
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1617
DP  - 2020 Apr 26
TI  - Molecularly imprinted polymer thin-film as a micro-extraction adsorbent for 
      selective determination of trace concentrations of polycyclic aromatic sulfur 
      heterocycles in seawater.
PG  - 460824
LID - S0021-9673(19)31295-6 [pii]
LID - 10.1016/j.chroma.2019.460824 [doi]
AB  - A tailor-made porous molecularly imprinted polymer (MIP) thin-film was prepared 
      by in situ photo-radical polymerization on a glass slide and used as a 
      microextraction adsorbent. Detection was carried out using gas 
      chromatography-mass spectrometry (GC-MS) to afford a method suitable for the 
      selective determination of trace concentrations of polycyclic aromatic sulfur 
      heterocycles (PASHs) in seawater. PASHs are one of the most problematic aromatic 
      organic pollutants, as they are considered more persistent and toxic compared to 
      other analogous aromatic compounds in the environment. The optimized thin-film 
      consisted of a 2-thiophenecarboxaldehyde pseudo-template with 1-vinylimidazole 
      (1-Vim) as the functional monomer, bisphenol A dimethacrylate (BPADMA) as the 
      cross-linker, acetonitrile as the porogen, and polyethylene glycol to boost 
      porosity through formation of interpenetrating polymer networks. The adsorption 
      behaviours of the thin-film, including adsorption kinetics, binding isotherms, 
      and selectivity of MIP thin-film were investigated in detail. The highest 
      imprinting factors (2.3-3.0) and adsorption capacity for targeted PASHs were 
      achieved at a template:monomer:cross-linker ratio of 1:4:8. The method with no 
      sample or film pretreatment showed very good reproducibility for the extraction 
      of PASHs from spiked seawater samples (RSDs </= 6.0%, n = 3), was linear 
      (R(2) > 0.9960) over a range of 0.5-40 microg L(-1), and gave limits of detection n 
      the range of 0.029-0.166 microg L(-1).
CI  - Copyright (c) 2019. Published by Elsevier B.V.
FAU - Hijazi, Hassan Y
AU  - Hijazi HY
AD  - Department of Chemistry, Memorial University of Newfoundland, St. John's,A1B 3X7, 
      Canada.
FAU - Bottaro, Christina S
AU  - Bottaro CS
AD  - Department of Chemistry, Memorial University of Newfoundland, St. John's,A1B 3X7, 
      Canada. Electronic address: cbottaro@mun.ca.
LA  - eng
PT  - Journal Article
DEP - 20191224
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Acetonitriles)
RN  - 0 (Benzhydryl Compounds)
RN  - 0 (Imidazoles)
RN  - 0 (Methacrylates)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Polymers)
RN  - 0 (Water Pollutants, Chemical)
RN  - 3WJQ0SDW1A (Polyethylene Glycols)
RN  - 70FD1KFU70 (Sulfur)
RN  - 982O8255NE (2,2-di(4-methacryloxyphenyl)propane)
RN  - ODY9ION63A (N-vinylimidazole)
RN  - Z072SB282N (acetonitrile)
SB  - IM
MH  - Acetonitriles/chemistry
MH  - Adsorption
MH  - Benzhydryl Compounds/chemistry
MH  - Gas Chromatography-Mass Spectrometry
MH  - Imidazoles/chemistry
MH  - Methacrylates/chemistry
MH  - *Molecular Imprinting
MH  - Polycyclic Aromatic Hydrocarbons/*analysis/isolation & purification
MH  - Polyethylene Glycols/chemistry
MH  - Polymerization
MH  - Polymers/chemistry
MH  - Porosity
MH  - Reproducibility of Results
MH  - Seawater/*chemistry
MH  - Solid Phase Microextraction
MH  - Sulfur
MH  - Water Pollutants, Chemical/*analysis/isolation & purification
OTO - NOTNLM
OT  - Interpenetrating polymer networks
OT  - Microextraction
OT  - Molecularly imprinted polymers
OT  - Polyaromatic sulfur heterocycles
OT  - Seawater
OT  - Thin-films
COIS- Declaration of Competing Interest There are no conflicts to declare.
EDAT- 2020/01/26 06:00
MHDA- 2020/06/06 06:00
CRDT- 2020/01/26 06:00
PHST- 2019/10/16 00:00 [received]
PHST- 2019/11/28 00:00 [revised]
PHST- 2019/12/21 00:00 [accepted]
PHST- 2020/01/26 06:00 [pubmed]
PHST- 2020/06/06 06:00 [medline]
PHST- 2020/01/26 06:00 [entrez]
AID - S0021-9673(19)31295-6 [pii]
AID - 10.1016/j.chroma.2019.460824 [doi]
PST - ppublish
SO  - J Chromatogr A. 2020 Apr 26;1617:460824. doi: 10.1016/j.chroma.2019.460824. Epub 
      2019 Dec 24.