Simultaneous determination of phenol,cresol, xylenol isomers and napthols in urine by capillary gas chromatography |
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| Affiliation: | 1. School of Material Science and Engineering, University of Jinan, Jinan, China;2. Business School, University of Jinan, Jinan, China;1. School of Science, Zhejiang Agricultural & Forestry University, Lin’an, Zhejiang Province 311300, China;2. Centre for Solid Waste Bioprocessing, School of Civil Engineering and School of Chemical Engineering, The University of Queensland, Brisbane St Lucia, QLD 4072, Australia;3. School of Environmental and Resource Sciences, Zhejiang Agricultural & Forestry University, Lin’an, Zhejiang Province 311300, China;1. Department of Chemistry, Faculty of Sciences, Islamic Azad University, Arak Branch, Arak, Iran;2. Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, PO Box 68149-89468, Khorramabad, Iran |
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| Abstract: | ![]()
An attempt was made to establish a method for the simultaneous determination of urinary concentrations of phenol, o-, p- and m-cresols, 1 and 2-naphthol and xylenol isomers by capillary gas chromatography. Urine samples were extracted after acid hydrolysis of glucuronides and sulfates by solid-phase extraction. The ten substances were separated gas chromatographically using a capillary column (Ultra 2) of cross-linked 5% phenylmethyl silicone. Calibration graphs were linear for 5–100 μg/ml of all the phenols determined. The corresponding detection limits for phenolic compounds varied from 0.1 to 0.2 μg/ml. The relative standard deviations for samples in urine were in the range 2.6–16.6% and the accuracy was in the range 1.4–25%. Recoveries were generally over 80%. |
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