PMID- 26931424
OWN - NLM
STAT- MEDLINE
DCOM- 20160729
LR  - 20181202
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1440
DP  - 2016 Apr 1
TI  - Magnetic micro-solid-phase-extraction of polycyclic aromatic hydrocarbons in 
      water.
PG  - 23-30
LID - S0021-9673(16)30162-5 [pii]
LID - 10.1016/j.chroma.2016.02.046 [doi]
AB  - A novel sorbent, magnetic chitosan functionalized graphene oxide (MCFG) was 
      synthesized and used in the micro-solid-phase-extraction (mu-SPE) and gas 
      chromatography-mass spectrometric (GC-MS) analysis of polycyclic aromatic 
      hydrocarbons (PAHs) from water. Through the use of the magnetic sorbent, the 
      mu-SPE device also functioned as a stir bar during extraction. Three types of MCFG 
      were prepared using glutaraldehyde cross-linked chitosan and graphene oxide with 
      different amounts of magnetic nanoparticles (Fe3O4) (0.05g, 0.07g and 0.1g). The 
      material was characterized using Fourier transform infrared spectroscopy and 
      field emission scanning electron microscopy. Parameters affecting the extraction 
      such as the type of sorbent, extraction and desorption times, volume of sample 
      solution and type of desorption solvent were optimized. Under the most favourable 
      conditions, the highest extraction was obtained by using the composite prepared 
      with 0.1g of Fe3O4. For the latter material as sorbent, the linearity of the 
      analytes was in the range of 0.01 and 100mugL(-1) for naphthalene, fluoranthene 
      and pyrene while acenaphthylene and phenanthrene exhibited linearity in the range 
      of 0.05 and 100mugL(-1). For fluorene and anthracene, the linearity range was from 
      0.01 to 50mugL(-1). The coefficients of determination (r(2)) associated with the 
      above linear ranges were higher than 0.987. The limits of detection from GC-MS 
      analysis of the seven PAHs were in the range 0.2-1.8ngL(-1); limits of 
      quantification were between 0.8 and 5.9ngL(-1) while the relative standard 
      deviations (RSDs) varied from 2.1 to 8.2%. The recoveries of the method for the 
      compounds at spiking levels of 1 and 5mugL(-1) were in the range 67.5-106.9% with 
      RSDs below 15%. The enrichment factors were found to be in between 67 and 302. 
      The developed method afforded an interesting and innovative approach using MCFG 
      as an efficient and promising sorbent.
CI  - Copyright (c) 2016 Elsevier B.V. All rights reserved.
FAU - Naing, Nyi Nyi
AU  - Naing NN
AD  - Department of Chemistry, National University of Singapore, 3 Science Drive 3, 
      Singapore 117543, Singapore; National University of Singapore Environmental 
      Research Institute, T-Lab Building #02-01, 5A Engineering Drive 1, Singapore 
      117411, Singapore.
FAU - Yau Li, Sam Fong
AU  - Yau Li SF
AD  - Department of Chemistry, National University of Singapore, 3 Science Drive 3, 
      Singapore 117543, Singapore; National University of Singapore Environmental 
      Research Institute, T-Lab Building #02-01, 5A Engineering Drive 1, Singapore 
      117411, Singapore.
FAU - Lee, Hian Kee
AU  - Lee HK
AD  - Department of Chemistry, National University of Singapore, 3 Science Drive 3, 
      Singapore 117543, Singapore; National University of Singapore Environmental 
      Research Institute, T-Lab Building #02-01, 5A Engineering Drive 1, Singapore 
      117411, Singapore. Electronic address: chmleehk@nus.edu.sg.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160217
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Water Pollutants, Chemical)
RN  - 059QF0KO0R (Water)
RN  - 7782-42-5 (Graphite)
SB  - IM
MH  - Gas Chromatography-Mass Spectrometry
MH  - Graphite/*chemistry
MH  - Limit of Detection
MH  - *Magnetics
MH  - Polycyclic Aromatic Hydrocarbons/*isolation & purification
MH  - Solid Phase Extraction/*methods
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Water/*chemistry
MH  - Water Pollutants, Chemical/*isolation & purification
OTO - NOTNLM
OT  - Gas chromatography-mass spectrometry
OT  - Graphene oxide
OT  - Magnetic chitosan
OT  - Micro-solid-phase-extraction
EDAT- 2016/03/05 06:00
MHDA- 2016/07/30 06:00
CRDT- 2016/03/03 06:00
PHST- 2015/11/22 00:00 [received]
PHST- 2016/02/14 00:00 [revised]
PHST- 2016/02/15 00:00 [accepted]
PHST- 2016/03/03 06:00 [entrez]
PHST- 2016/03/05 06:00 [pubmed]
PHST- 2016/07/30 06:00 [medline]
AID - S0021-9673(16)30162-5 [pii]
AID - 10.1016/j.chroma.2016.02.046 [doi]
PST - ppublish
SO  - J Chromatogr A. 2016 Apr 1;1440:23-30. doi: 10.1016/j.chroma.2016.02.046. Epub 
      2016 Feb 17.