Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.chroma.2005.09.039
Title: Polymer-coated hollow-fiber microextraction of estrogens in water samples with analysis by gas chromatography-mass spectrometry
Authors: Basheer, C. 
Jayaraman, A.
Kee, M.K.
Valiyaveettil, S. 
Lee, H.K. 
Keywords: Endocrine disruptors
Environmental analysis
Extraction methods
Polymer-coated hollow-fiber microextraction
Solid-phase microextraction
Issue Date: 30-Dec-2005
Source: Basheer, C., Jayaraman, A., Kee, M.K., Valiyaveettil, S., Lee, H.K. (2005-12-30). Polymer-coated hollow-fiber microextraction of estrogens in water samples with analysis by gas chromatography-mass spectrometry. Journal of Chromatography A 1100 (2) : 137-143. ScholarBank@NUS Repository. https://doi.org/10.1016/j.chroma.2005.09.039
Abstract: A novel sorbent, dihydroxylated polymethylmethacrylate (DHPMM), coated on hollow-fiber membrane, is used for the polymer-coated hollow-fiber microextraction of trace amounts of natural and synthetic estrogens, such as diethylstilbestrol, estrone, 17β-estradiol and 17α-ethynylestradiol, in aqueous samples. In this procedure, estrogens were extracted using the functionalized polar DHPMM polymer with derivatization using N-methyl-N-(trimethylsilyl)trifluoroacetamide followed by gas chromatography-mass spectrometric analysis. The detection limits for estrogens in aqueous sample were between 0.03 and 0.8 ng l-1 and the calibration curves were linear over the concentration range 0.05-10 μg l -1 and had correlation coefficients of >0.994. The relative standard deviations (RSDs) were
Source Title: Journal of Chromatography A
URI: http://scholarbank.nus.edu.sg/handle/10635/94567
ISSN: 00219673
DOI: 10.1016/j.chroma.2005.09.039
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