PMID- 22129571
OWN - NLM
STAT- MEDLINE
DCOM- 20120213
LR  - 20131121
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1218
IP  - 52
DP  - 2011 Dec 30
TI  - Preparation of phenothiazine bonded silica gel as sorbents of solid phase 
      extraction and their application for determination of nitrobenzene compounds in 
      environmental water by gas chromatography-mass spectrometry.
PG  - 9314-20
LID - 10.1016/j.chroma.2011.10.076 [doi]
AB  - In this paper, two phenothiazine bonded silica (PTZ-Si) sorbents were prepared 
      and used as sorbents of solid-phase extraction (SPE) for the determination of 
      nitrobenzene compounds in environmental water samples by gas chromatography-mass 
      spectrometry (GC-MS). Different synthesis routes were proposed to obtain high 
      bonded amount of PTZ on the surface of silica gel. PTZ molecule was derived to 
      its amino or acyl chloride derivatives for reacting with isocyanate or amino 
      silane coupling agent, which was further reacted with the surface silanol groups 
      of silica gel to obtain the PTZ-Si sorbents. The resultant PTZ-Si sorbents were 
      characterized by nitrogen sorption porosimetry (NSP), Fourier transform infrared 
      spectroscopy (FT-IR) and elemental analysis (EA) to assure the successful bonding 
      of PTZ on the surface of silica gel. Then the PTZ-Si sorbents were served as SPE 
      sorbents for the enrichment of nitrobenzene compounds. Several parameters 
      affecting the extraction performance were investigated. Under the optimized 
      conditions, the proposed method was applied to the analysis of six nitrobenzene 
      compounds in environmental water samples. Good linearities were obtained for all 
      nitrobenzene compounds with R(2) larger than 0.9958. The limits of detection were 
      found to be in the range of 0.06-0.3 ng/mL. The method recoveries of nitrobenzene 
      compounds spiked in water samples were from 71.4% to 124.3%, with relative 
      standard deviations (RSDs) less than 10.1%.
CI  - Copyright (c) 2011 Elsevier B.V. All rights reserved.
FAU - Peng, Xi-Tian
AU  - Peng XT
AD  - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of 
      Education), Department of Chemistry, Wuhan University, Wuhan 430072, China.
FAU - Zhao, Xing
AU  - Zhao X
FAU - Feng, Yu-Qi
AU  - Feng YQ
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111115
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Dinitrobenzenes)
RN  - 0 (Phenothiazines)
RN  - 0 (Water Pollutants, Chemical)
RN  - 3FPU23BG52 (Toluene)
RN  - 60650-90-0 (Silica Gel)
RN  - GS9EX7QNU6 (phenothiazine)
SB  - IM
MH  - Dinitrobenzenes/*analysis/isolation & purification
MH  - Fresh Water/chemistry
MH  - Gas Chromatography-Mass Spectrometry/*methods
MH  - Limit of Detection
MH  - Linear Models
MH  - Phenothiazines/*chemistry
MH  - Reproducibility of Results
MH  - Silica Gel/chemistry
MH  - Solid Phase Extraction/*methods
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Toluene/*analogs & derivatives/analysis/isolation & purification
MH  - Water Pollutants, Chemical/*analysis/isolation & purification
EDAT- 2011/12/02 06:00
MHDA- 2012/02/14 06:00
CRDT- 2011/12/02 06:00
PHST- 2011/08/14 00:00 [received]
PHST- 2011/10/23 00:00 [revised]
PHST- 2011/10/25 00:00 [accepted]
PHST- 2011/12/02 06:00 [entrez]
PHST- 2011/12/02 06:00 [pubmed]
PHST- 2012/02/14 06:00 [medline]
AID - S0021-9673(11)01618-9 [pii]
AID - 10.1016/j.chroma.2011.10.076 [doi]
PST - ppublish
SO  - J Chromatogr A. 2011 Dec 30;1218(52):9314-20. doi: 10.1016/j.chroma.2011.10.076. 
      Epub 2011 Nov 15.