Journal
ANALYTICAL LETTERS
Volume 47, Issue 16, Pages 2643-2654Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2014.921824
Keywords
1-Hexadecanethiol; Alkylphenols; Dispersive liquid-liquid microextraction; High-performance liquid chromatography
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Funding
- National Science Council of Taiwan [NSC 99-2113-M-007-004-MY3]
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Dispersive liquid-liquid microextraction based on solid formation without a disperser combined with high-performance liquid chromatography has been developed for the determination of 4-tert-butylphenol, 4-n-nonylphenol, and 4-tert-octylphenol. This method is rapid, easy, and uses only 10 mu L of a low toxicity organic solvent (1-hexadecanethiol) for the extraction solvent and no disperser solvent. The extraction time and centrifugation time require less than 10 min. The linear range was 1-500 ng mL(-1) for 4-tert-butylphenol, 2-1000 ng mL(-1) for 4-tert-octylphenol, and 5-500 ng mL(-1) for 4-n-nonylphenol with r(2) >= 0.9986. The detection limits were between 0.2 and 1.5 ng mL(-1). The recoveries of lake and river water samples were in the range of 79% to 108%, and the relative standard deviations were 5% to 10%.
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