Hollow-Fibre-Supported Dispersive Liquid-Liquid Microextraction for Determination of Atrazine and Triclosan in Aqueous Samples
Joint Authors
Letseka, Thabiso
George, Mosotho J.
Source
International Journal of Analytical Chemistry
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-11
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We report the application of the dispersive liquid-liquid microextraction coupled to hollow-fibre membrane-assisted liquid-phase microextraction and its application for extraction of atrazine and triclosan.
Under optimum conditions, namely, 25 μL of a 1 : 4 chlorobenzene : ethyl acetate mixture dispersed in 1 mL of aqueous sample, 10% (m/v) NaCl, a magnetic stirrer speed at 600 rpm, and 10 minutes’ extraction time with toluene-filled fibre as the acceptor phase, the method demonstrates sufficient figures of merit.
These include linearity (R2 ≥ 0.9975), intravial precision (%RSD ≤ 7.6), enrichment factors (127 and 142), limits of detection (0.0081 and 0.0169 µg/mL), and recovery from river water and sewerage (96–101%).
The relatively high detection limits are attributed to the flame ionization detector which is less preferred than a mass spectrometer in trace analyses.
This is the first report of a homogenous mixture of the dispersed organic solvent in aqueous solutions and its employment in extraction of organic compounds from aqueous solutions.
It therefore adds yet another candidate in the pool of miniaturised solvent microextraction techniques.
American Psychological Association (APA)
Letseka, Thabiso& George, Mosotho J.. 2017. Hollow-Fibre-Supported Dispersive Liquid-Liquid Microextraction for Determination of Atrazine and Triclosan in Aqueous Samples. International Journal of Analytical Chemistry،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1157492
Modern Language Association (MLA)
Letseka, Thabiso& George, Mosotho J.. Hollow-Fibre-Supported Dispersive Liquid-Liquid Microextraction for Determination of Atrazine and Triclosan in Aqueous Samples. International Journal of Analytical Chemistry No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1157492
American Medical Association (AMA)
Letseka, Thabiso& George, Mosotho J.. Hollow-Fibre-Supported Dispersive Liquid-Liquid Microextraction for Determination of Atrazine and Triclosan in Aqueous Samples. International Journal of Analytical Chemistry. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1157492
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157492