Document Detail


Liquid chromatography-atmospheric pressure ionization mass spectrometry for the determination of chloro- and nitrophenolic compounds in tap water and sea water.
MedLine Citation:
PMID:  9408995     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Liquid chromatography coupled to atmospheric-pressure ionization mass spectrometry (LC-API-MS) with negative ion detection was studied for the determination of a variety of phenolic compounds in environmental waters. An isocratic mobile phase of 0.05% acetic acid-acetonitrile (50:50, v/v) was used. The influence of post-column addition of different bases on the sensitivity of the detection in electrospray (ES) was studied. The [M-H]-ion was the base peak for all the compounds using both ES and atmospheric-pressure chemical-ionization (APCI) ion sources. Moreover, abundant structural information was obtained by increasing the extraction voltage. Detection limits for standard solutions ranging from 2 to 13 ng injected for LC-ES-MS and from 0.02 to 20 ng for LC-APCI-MS were obtained. Good reproducibilities (day-to-day and run-to-run) were observed. The optimum LC-ES-MS and LC-APCI-MS conditions thus determined were used for a quantitative analysis of some phenolic compounds in spiked tap water and sea water samples.
Authors:
O Jáuregui; E Moyano; M T Galceran
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of chromatography. A     Volume:  787     ISSN:  0021-9673     ISO Abbreviation:  J Chromatogr A     Publication Date:  1997 Nov 
Date Detail:
Created Date:  1998-01-27     Completed Date:  1998-01-27     Revised Date:  2009-01-15    
Medline Journal Info:
Nlm Unique ID:  9318488     Medline TA:  J Chromatogr A     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  79-89     Citation Subset:  IM    
Affiliation:
Departament de Química Analítica, Universitat de Barcelona, Spain.
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MeSH Terms
Descriptor/Qualifier:
Chlorophenols / analysis*
Chromatography, Liquid
Mass Spectrometry
Nitrophenols / analysis*
Reproducibility of Results
Seawater / chemistry*
Sensitivity and Specificity
Water / chemistry*
Water Pollutants, Chemical / analysis*
Chemical
Reg. No./Substance:
0/Chlorophenols; 0/Nitrophenols; 0/Water Pollutants, Chemical; 7732-18-5/Water

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


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