Determination of trace levels of dinitrophenolic compounds in environmental water samples using hollow fiber supported liquid membrane extraction and high performance liquid chromatography
Författare
Summary, in English
A hollow fiber supported liquid membrane extraction method for the liquid chromatographic determination of dinitrophenolic compounds at ppt levels has been developed. Different variables affecting the extraction process, such as extraction time, shaking speed, acceptor pH, acceptor buffer concentration, salt content and humic acids have been studied. Enrichment factors up to 7000 times were obtained. Validation of the method included calibration experiments and studies of the linearity of the responses in different matrices. Good linearity was obtained in the environmental matrices evaluated. Detection limits range from 6.0 to 8.0 ng/L, and the relative standard deviations do not exceed 7% in terms of repeatability. (c) 2005 Elsevier B.V. All rights reserved.
Avdelning/ar
Publiceringsår
2006
Språk
Engelska
Sidor
1-8
Publikation/Tidskrift/Serie
Journal of Chromatography A
Volym
1103
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Analytical Chemistry
Nyckelord
- environmental waters
- HPLC
- membrane
- supported liquid
- hollow fiber
- dinitrophenols
- phenolic herbicides
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0021-9673