PMID- 20133063
OWN - NLM
STAT- MEDLINE
DCOM- 20100713
LR  - 20181201
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 178
IP  - 1-3
DP  - 2010 Jun 15
TI  - On-line separation/preconcentration of V(IV)/V(V) in environmental water samples 
      with CTAB-modified alkyl silica microcolumn and their determination by 
      inductively coupled plasma-optical emission spectrometry.
PG  - 164-70
LID - 10.1016/j.jhazmat.2010.01.058 [doi]
AB  - A simple and selective method of flow injection microcolumn 
      separation/preconcentration on-line coupled with inductively coupled 
      plasma-optical emission spectrometry (ICP-OES) was developed for the speciation 
      of V(V)/(IV). Various factors affecting the separation/preconcentration of V(IV) 
      and V(V) by conical microcolumn packed with cetyltrimethylammonium bromide 
      (CTAB)-modified alkyl silica have been systematically investigated. It is found 
      that V(V) was quantitatively retained by the microcolumn at pH 2.0-7.0, while 
      V(IV) was not retained by the microcolumn at pH 2.0-3.5 but quantitatively 
      retained at pH 5.0-7.0. The two vanadium species adsorbed by the modified 
      adsorbent were quantitatively desorbed by 0.10 mL of 1.0 mol L(-1) HNO(3). 
      Therefore, V(V) and total vanadium could be determined by CTAB-modified alkyl 
      silica packed microcolumn separation/preconcentration and on-line ICP-OES 
      detection after adjusting sample solution to pH 2.5 and 6.0, respectively, and 
      the assay of V(IV) was realized by subtracting V(V) from total V. The detection 
      of limit (LOD) for V(V) was 0.03 microg L(-1) with an enrichment factor of 27.9 
      for a 3.0 mL sample consumption. The relative standard deviations (RSDs) 
      (C(V(V))=C(V(IV))=5.0 microg L(-1), n=9) were 4.3% and 4.0% for V(V) and total V, 
      respectively. The developed method was validated by the determination of V(IV) 
      and V(V) in environmental water samples.
CI  - Copyright 2010 Elsevier B.V. All rights reserved.
FAU - Xiong, Chaomei
AU  - Xiong C
AD  - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of 
      Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
FAU - Qin, Yongchao
AU  - Qin Y
FAU - Hu, Bin
AU  - Hu B
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100120
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Cetrimonium Compounds)
RN  - 0 (Indicators and Reagents)
RN  - 0 (Nitrates)
RN  - 0 (Vanadium Compounds)
RN  - 0 (Water Pollutants, Chemical)
RN  - 00J9J9XKDE (Vanadium)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - Z7FF1XKL7A (Cetrimonium)
SB  - IM
MH  - Adsorption
MH  - Cetrimonium
MH  - Cetrimonium Compounds/*chemistry
MH  - Environmental Monitoring/*methods
MH  - Fresh Water/analysis
MH  - Hydrogen-Ion Concentration
MH  - Indicators and Reagents
MH  - Nitrates/chemistry
MH  - Oxidation-Reduction
MH  - Seawater/analysis
MH  - Silicon Dioxide/chemistry
MH  - Solid Phase Extraction
MH  - Spectrophotometry, Atomic
MH  - Vanadium/*isolation & purification
MH  - Vanadium Compounds/*isolation & purification
MH  - Water Pollutants, Chemical/*isolation & purification
MH  - Water Supply/*analysis
EDAT- 2010/02/06 06:00
MHDA- 2010/07/14 06:00
CRDT- 2010/02/06 06:00
PHST- 2009/08/26 00:00 [received]
PHST- 2009/12/24 00:00 [revised]
PHST- 2010/01/08 00:00 [accepted]
PHST- 2010/02/06 06:00 [entrez]
PHST- 2010/02/06 06:00 [pubmed]
PHST- 2010/07/14 06:00 [medline]
AID - S0304-3894(10)00091-9 [pii]
AID - 10.1016/j.jhazmat.2010.01.058 [doi]
PST - ppublish
SO  - J Hazard Mater. 2010 Jun 15;178(1-3):164-70. doi: 10.1016/j.jhazmat.2010.01.058. 
      Epub 2010 Jan 20.