PMID- 23642767
OWN - NLM
STAT- MEDLINE
DCOM- 20130903
LR  - 20161125
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1293
DP  - 2013 Jun 7
TI  - Magnetic microsphere-confined graphene for the extraction of polycyclic aromatic 
      hydrocarbons from environmental water samples coupled with high performance 
      liquid chromatography-fluorescence analysis.
PG  - 20-7
LID - S0021-9673(13)00554-2 [pii]
LID - 10.1016/j.chroma.2013.03.071 [doi]
AB  - In this paper, a magnetic microsphere-confined graphene adsorbent (Fe3O4@SiO2-G) 
      was fabricated and used for the extraction of five polycyclic aromatic 
      hydrocarbons (fluorene, anthracene, phenanthrene, fluoranthene and pyrene) from 
      environmental water samples prior to high performance liquid chromatography with 
      fluorescence detection. The Fe3O4@SiO2-G was characterized by various 
      instrumental methods. Various experimental parameters that could affect the 
      extraction efficiencies, such as the amount of Fe3O4@SiO2-G, the pH and ionic 
      strength of sample solution, the extraction time and the desorption conditions, 
      were investigated. Due to the high surface area and excellent adsorption capacity 
      of the Fe3O4@SiO2-G, satisfactory extraction can be achieved with only 15mg of 
      the adsorbent per 250mL solution and 5min extraction. Under the optimum 
      conditions, a linear response was observed in the concentration range of 
      5-1500ngL(-1) for fluorene, 2.5-1500ngL(-1) for anthracene and 15-1500ngL(-1) for 
      phenanthrene, fluoranthene and pyrene, with the correlation coefficients (r) 
      ranging from 0.9897 to 0.9961. The limits of detection (S/N=3) of the method were 
      between 0.5 and 5.0ngL(-1). The relative standard deviations (RSDs) were less 
      than 5.6%. The recoveries of the method were in the range between 83.2% and 
      108.2%. The results indicated that this graphene-based magnetic nanocomposite had 
      a great adsorptive ability toward the five polycyclic aromatic hydrocarbons from 
      environmental water samples.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Wang, Weina
AU  - Wang W
AD  - Department of Chemistry, College of Science, Agricultural University of Hebei, 
      Baoding 071001, China.
FAU - Ma, Ruiyang
AU  - Ma R
FAU - Wu, Qiuhua
AU  - Wu Q
FAU - Wang, Chun
AU  - Wang C
FAU - Wang, Zhi
AU  - Wang Z
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130409
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Water Pollutants, Chemical)
RN  - 1364PS73AF (Acetone)
RN  - 451W47IQ8X (Sodium Chloride)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - 7782-42-5 (Graphite)
RN  - XM0M87F357 (Ferrosoferric Oxide)
SB  - IM
MH  - Acetone/chemistry
MH  - Chromatography, High Pressure Liquid/*methods
MH  - Equipment Reuse
MH  - Ferrosoferric Oxide/*chemistry
MH  - Graphite/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Limit of Detection
MH  - Linear Models
MH  - *Microspheres
MH  - Polycyclic Aromatic Hydrocarbons/analysis/*isolation & purification
MH  - Reproducibility of Results
MH  - Seawater/chemistry
MH  - Silicon Dioxide/chemistry
MH  - Sodium Chloride/chemistry
MH  - Spectrometry, Fluorescence
MH  - Water Pollutants, Chemical/analysis/*isolation & purification
MH  - Water Supply/analysis
EDAT- 2013/05/07 06:00
MHDA- 2013/09/04 06:00
CRDT- 2013/05/07 06:00
PHST- 2012/10/30 00:00 [received]
PHST- 2013/01/27 00:00 [revised]
PHST- 2013/03/26 00:00 [accepted]
PHST- 2013/05/07 06:00 [entrez]
PHST- 2013/05/07 06:00 [pubmed]
PHST- 2013/09/04 06:00 [medline]
AID - S0021-9673(13)00554-2 [pii]
AID - 10.1016/j.chroma.2013.03.071 [doi]
PST - ppublish
SO  - J Chromatogr A. 2013 Jun 7;1293:20-7. doi: 10.1016/j.chroma.2013.03.071. Epub 
      2013 Apr 9.