Document Detail


Investigation of levels and fate of triclosan in environmental waters from the analysis of gas chromatography coupled with ion trap mass spectrometry.
MedLine Citation:
PMID:  18440583     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A gas chromatography-ion trap mass spectrometry method was developed and optimized for the analysis of triclosan in water. Tandem mass spectrometry, along with an isotope dilution internal standard method, was used for the quantitative analysis of triclosan in water at low ng l(-1) levels. The efficiencies obtained from liquid-liquid extraction and solid-phase extraction were compared. Average recoveries by the SPE pre-concentration using a C(18) cartridge were determined as 84-90%. The limit of detection was 2 ng l(-1) for triclosan in water. The accuracy represented by relative analytical errors was -16% to -10%, and the precision by relative standard deviations was 3-15% (n=4). The method was successfully applied to analyze triclosan at concentrations between 4.1 ng l(-1) and 117 ng l(-1) in environmental water samples collected from rivers and coastal water in Hong Kong.
Authors:
W C Chau; Jian-lin Wu; Zongwei Cai
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-04-28
Journal Detail:
Title:  Chemosphere     Volume:  73     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-15     Completed Date:  2008-10-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  S13-7     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, China.
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MeSH Terms
Descriptor/Qualifier:
Calibration
Chromatography, Gas / methods*
Environment*
Mass Spectrometry / methods*
Rivers / chemistry
Sensitivity and Specificity
Triclosan / analysis*,  chemistry
Water / chemistry*
Chemical
Reg. No./Substance:
3380-34-5/Triclosan; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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