PMID- 20188965
OWN - NLM
STAT- MEDLINE
DCOM- 20100520
LR  - 20131121
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 81
IP  - 1-2
DP  - 2010 Apr 15
TI  - Headspace trapping of the hydrides on a Pd(II)-coated graphite adsorptive bar as 
      a microextraction method for ETV-ICP-MS determination of Se, Te and Bi in 
      seawater and human hair samples.
PG  - 578-85
LID - 10.1016/j.talanta.2009.12.034 [doi]
AB  - A new, simple and sensitive method by combining headspace Pd(II)-coated graphite 
      bar microextraction (GBME) with electrothermal vaporization-inductively coupled 
      plasma mass spectrometry (ETV-ICP-MS) was developed for the determination of 
      trace Se, Te and Bi in seawater and human hair. In this method, the graphite bar 
      was coated with Pd(II) and then used for headspace trapping of the hydrides of 
      Se(IV), Te(IV) and Bi(III). The graphite bar with enriched hydrides of analytes 
      was inserted directly into the graphite tube and subsequently determined by 
      ETV-ICP-MS according to the established temperature program. The experimental 
      parameters, which may affect the extraction and vaporization of target analytes, 
      were systematically investigated and the optimal experimental conditions were 
      established. Under the optimal conditions, the detection limits of the method 
      were 8.6, 2.6 and 0.2 ng l(-1) and the relative standard deviations (RSDs) were 
      7.0%, 6.2% and 8.0% (C=0.20 microg l(-1), n=7) for Se, Te and Bi, respectively. 
      Linearity was obtained over the range of 0.05-20.00, 0.01-5.00 and 0.01-20.00 
      microg l(-1) with the correlation coefficients of 0.9942, 0.9997 and 0.9976 for 
      Se, Te and Bi, respectively. The proposed method was successfully applied for the 
      determination of trace Se, Te and Bi in seawater and human hair samples. In order 
      to validate the method, the proposed method has also been applied for the 
      determination of trace Se, Te and Bi in the certified material of GBW07601 human 
      hair, and the determined values were in good agreement with the certified values.
CI  - (c) 2009 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, Hubei 
      Province, PR China.
FAU - Hu, Bin
AU  - Hu B
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100104
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
RN  - 0 (Borohydrides)
RN  - 5TWQ1V240M (Palladium)
RN  - 7782-42-5 (Graphite)
RN  - 87L0B9CPPA (sodium borohydride)
RN  - H6241UJ22B (Selenium)
RN  - NQA0O090ZJ (Tellurium)
RN  - U015TT5I8H (Bismuth)
SB  - IM
MH  - Adsorption
MH  - Bismuth/analysis/isolation & purification
MH  - Borohydrides/chemistry
MH  - Chemical Fractionation/*methods
MH  - Graphite/*chemistry
MH  - Hair/*chemistry
MH  - Humans
MH  - Hydrogen-Ion Concentration
MH  - Mass Spectrometry
MH  - Palladium/*chemistry
MH  - Seawater/*chemistry
MH  - Selenium/analysis/isolation & purification
MH  - Tellurium/analysis/isolation & purification
MH  - Temperature
MH  - Time Factors
MH  - Volatilization
EDAT- 2010/03/02 06:00
MHDA- 2010/05/21 06:00
CRDT- 2010/03/02 06:00
PHST- 2009/07/29 00:00 [received]
PHST- 2009/12/22 00:00 [revised]
PHST- 2009/12/22 00:00 [accepted]
PHST- 2010/03/02 06:00 [entrez]
PHST- 2010/03/02 06:00 [pubmed]
PHST- 2010/05/21 06:00 [medline]
AID - S0039-9140(09)00983-7 [pii]
AID - 10.1016/j.talanta.2009.12.034 [doi]
PST - ppublish
SO  - Talanta. 2010 Apr 15;81(1-2):578-85. doi: 10.1016/j.talanta.2009.12.034. Epub 
      2010 Jan 4.