PMID- 29801941
OWN - NLM
STAT- MEDLINE
DCOM- 20181003
LR  - 20190318
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1560
DP  - 2018 Jul 27
TI  - Solid-phase extraction, quantification, and selective determination of 
      microcystins in water with a gold-polypyrrole nanocomposite sorbent material.
PG  - 1-9
LID - S0021-9673(18)30460-6 [pii]
LID - 10.1016/j.chroma.2018.04.027 [doi]
AB  - A novel sorbent material, gold-polypyrrole (Au-PPy) nanocomposite-coated silica, 
      is described for the efficient solid-phase extraction (SPE) of six common 
      microcystins (MCs) well below the recommended United States EPA and World Health 
      Organization (WHO) guidelines. With the optimized SPE protocol, samples spiked 
      with MCs were determined at ng/L concentrations by liquid chromatography-mass 
      spectrometry (LC-MS) in different aqueous sample matrices, including HPLC-grade, 
      tap, and lake water. The average recoveries for all MCs tested in the three water 
      matrices ranged from 94.1-103.2% with relative standard deviations (RSDs) of 
      1.6-5.4%, which indicated excellent extraction efficiency and reproducibility. 
      Limits of detection (LODs) and limits of quantification (LOQs) for all MCs in 
      both tap and lake water samples were determined to be </=1.5 ng/L and 5.0 ng/L, 
      respectively. The Au-PPy nanocomposite-coated sorbent material was reusable for 
      at least three independent MC extractions with a single SPE cartridge in the 
      concentration range of 10-500 ng/L. Importantly, off-column selective separation 
      at the sample preparation and preconcentration stage between more hydrophilic and 
      more hydrophobic MCs was achieved by sequential elution through changes in the 
      solvent composition and SPE bed size. Therefore, the Au-PPy nanocomposite-coated 
      silica sorbent is a promising new material for the quantification of MC variants 
      in water samples.
CI  - Copyright (c) 2018 Elsevier B.V. All rights reserved.
FAU - Devasurendra, Amila M
AU  - Devasurendra AM
AD  - Department of Chemistry and Biochemistry, College of Natural Sciences and 
      Mathematics, University of Toledo, Toledo, OH, 43606, United States; School of 
      Green Chemistry and Engineering, University of Toledo, Toledo, OH, 43606, United 
      States.
FAU - Palagama, Dilrukshika S W
AU  - Palagama DSW
AD  - Department of Chemistry and Biochemistry, College of Natural Sciences and 
      Mathematics, University of Toledo, Toledo, OH, 43606, United States; School of 
      Green Chemistry and Engineering, University of Toledo, Toledo, OH, 43606, United 
      States.
FAU - Rohanifar, Ahmad
AU  - Rohanifar A
AD  - Department of Chemistry and Biochemistry, College of Natural Sciences and 
      Mathematics, University of Toledo, Toledo, OH, 43606, United States; School of 
      Green Chemistry and Engineering, University of Toledo, Toledo, OH, 43606, United 
      States.
FAU - Isailovic, Dragan
AU  - Isailovic D
AD  - Department of Chemistry and Biochemistry, College of Natural Sciences and 
      Mathematics, University of Toledo, Toledo, OH, 43606, United States; School of 
      Green Chemistry and Engineering, University of Toledo, Toledo, OH, 43606, United 
      States. Electronic address: Dragan.Isailovic@utoledo.edu.
FAU - Kirchhoff, Jon R
AU  - Kirchhoff JR
AD  - Department of Chemistry and Biochemistry, College of Natural Sciences and 
      Mathematics, University of Toledo, Toledo, OH, 43606, United States; School of 
      Green Chemistry and Engineering, University of Toledo, Toledo, OH, 43606, United 
      States. Electronic address: Jon.Kirchhoff@utoledo.edu.
FAU - Anderson, Jared L
AU  - Anderson JL
AD  - Department of Chemistry, Iowa State University, Ames, IA, 50011, United States.
LA  - eng
PT  - Journal Article
DEP - 20180413
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Microcystins)
RN  - 0 (Polymers)
RN  - 0 (Pyrroles)
RN  - 0 (Water Pollutants, Chemical)
RN  - 059QF0KO0R (Water)
RN  - 30604-81-0 (polypyrrole)
RN  - 7440-57-5 (Gold)
SB  - IM
MH  - Chromatography, Liquid/methods
MH  - Gold/*chemistry
MH  - Limit of Detection
MH  - Microcystins/*analysis/*isolation & purification
MH  - Nanocomposites/*chemistry
MH  - Polymers/*chemistry
MH  - Pyrroles/*chemistry
MH  - Solid Phase Extraction/*methods
MH  - Tandem Mass Spectrometry/methods
MH  - Water/chemistry
MH  - Water Pollutants, Chemical/*analysis/isolation & purification
OTO - NOTNLM
OT  - Chemical polymerization
OT  - Gold-polypyrrole nanocomposite
OT  - LC-MS
OT  - Microcystins
OT  - Selective separation
OT  - Solid-phase extraction
EDAT- 2018/05/29 06:00
MHDA- 2018/10/04 06:00
CRDT- 2018/05/27 06:00
PHST- 2018/01/19 00:00 [received]
PHST- 2018/03/30 00:00 [revised]
PHST- 2018/04/11 00:00 [accepted]
PHST- 2018/05/29 06:00 [pubmed]
PHST- 2018/10/04 06:00 [medline]
PHST- 2018/05/27 06:00 [entrez]
AID - S0021-9673(18)30460-6 [pii]
AID - 10.1016/j.chroma.2018.04.027 [doi]
PST - ppublish
SO  - J Chromatogr A. 2018 Jul 27;1560:1-9. doi: 10.1016/j.chroma.2018.04.027. Epub 
      2018 Apr 13.