PMID- 23726076
OWN - NLM
STAT- MEDLINE
DCOM- 20140121
LR  - 20130705
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1300
DP  - 2013 Jul 26
TI  - Amino modified multi-walled carbon nanotubes/polydimethylsiloxane coated stir bar 
      sorptive extraction coupled to high performance liquid chromatography-ultraviolet 
      detection for the determination of phenols in environmental samples.
PG  - 165-72
LID - S0021-9673(13)00735-8 [pii]
LID - 10.1016/j.chroma.2013.05.004 [doi]
AB  - In this work, amino modified multi-walled carbon nanotubes/polydimethylsiloxane 
      (multi-walled carbon nanotubes-4,4'-diaminodiphenylmethane/polydimethylsiloxane, 
      MWCNTs-DDM/PDMS) was synthesized, and utilized as a novel coating for stir bar 
      sorptive extraction (SBSE) of seven phenols (phenol, 2-chlorophenol, 
      2-nitrophenol, 4-nitrophenol, 2,4-dimethylphenol, p-choro-m-cresol and 
      2,4,6-trichlorphenol) in environmental water and soil samples, followed by high 
      performance liquid chromatography-ultraviolet detection (HPLC-UV). The prepared 
      MWCNTs-DDM/PDMS coated stir bar was characterized and good preparation 
      reproducibility was obtained with the relative standard deviations (RSDs) ranging 
      from 4.7% to 11.3% (n=9) in one batch, and from 4.8% to 13.9% (n=8) among 
      different batches. Several parameters affecting the extraction of seven target 
      phenols by MWCNTs-DDM/PDMS-SBSE including extraction time, stirring rate, pH, 
      ionic strength, desorption solvent and desorption time were investigated. Under 
      the optimal experimental conditions, the limits of detection (LODs, S/N=3) were 
      found to be in the range of 0.14mug/L (2-nitrophenol) to 1.76mug/L (phenol) and the 
      limits of quantification (LOQs, S/N=10) were found to be in the range of 0.46mug/L 
      (2-nitrophenol) to 5.8mug/L (phenol). The linear range was 5-1000mug/L for phenol 
      and 4-nitrophenol, 1-1000mug/L for 2-nitrophenol and 2-1000mug/L for other phenols, 
      respectively. The RSDs of the developed method were in the range of 6.2-11.6% 
      (n=8, c=10mug/L) and the enrichment factors were from 6.5 to 62.8-fold 
      (theoretical enrichment factor was 100-fold). The proposed method was 
      successfully applied to the analysis of phenols in environmental water and soil 
      samples, and good recoveries were obtained for the spiked samples. The proposed 
      method is simple, highly sensitive and suitable for the analysis of trace phenols 
      in environmental samples with complex matrix.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Hu, Cong
AU  - Hu C
AD  - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of 
      Education), Department of Chemistry, Wuhan University, Wuhan 430072, China.
FAU - Chen, Beibei
AU  - Chen B
FAU - He, Man
AU  - He M
FAU - Hu, Bin
AU  - Hu B
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130513
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Dimethylpolysiloxanes)
RN  - 0 (Environmental Pollutants)
RN  - 0 (Nanotubes, Carbon)
RN  - 0 (Phenols)
RN  - 55X04QC32I (Sodium Hydroxide)
RN  - 63148-62-9 (baysilon)
SB  - IM
MH  - Chromatography, High Pressure Liquid/*methods
MH  - Dimethylpolysiloxanes/chemistry
MH  - Environmental Pollutants/*analysis/chemistry/isolation & purification
MH  - Hydrogen-Ion Concentration
MH  - Limit of Detection
MH  - Linear Models
MH  - Liquid-Liquid Extraction/*methods
MH  - Nanotubes, Carbon/*chemistry
MH  - Osmolar Concentration
MH  - Phenols/*analysis/chemistry/isolation & purification
MH  - Reproducibility of Results
MH  - Sodium Hydroxide/chemistry
MH  - Spectrophotometry, Ultraviolet
OTO - NOTNLM
OT  - Amino modified multi-walled carbon nanotubes
OT  - Environmental samples
OT  - High performance liquid chromatography
OT  - Phenols
OT  - Stir bar sorptive extraction
EDAT- 2013/06/04 06:00
MHDA- 2014/01/22 06:00
CRDT- 2013/06/04 06:00
PHST- 2013/02/04 00:00 [received]
PHST- 2013/04/28 00:00 [revised]
PHST- 2013/05/02 00:00 [accepted]
PHST- 2013/06/04 06:00 [entrez]
PHST- 2013/06/04 06:00 [pubmed]
PHST- 2014/01/22 06:00 [medline]
AID - S0021-9673(13)00735-8 [pii]
AID - 10.1016/j.chroma.2013.05.004 [doi]
PST - ppublish
SO  - J Chromatogr A. 2013 Jul 26;1300:165-72. doi: 10.1016/j.chroma.2013.05.004. Epub 
      2013 May 13.