PMID- 24401430 OWN - NLM STAT- MEDLINE DCOM- 20140902 LR - 20140109 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 119 DP - 2014 Feb TI - Direct analysis of eight chlorophenols in urine by large volume injection online turbulent flow solid-phase extraction liquid chromatography with multiple wavelength ultraviolet detection. PG - 396-400 LID - S0039-9140(13)00880-1 [pii] LID - 10.1016/j.talanta.2013.11.006 [doi] AB - A novel method for determining eight chlorophenols (CPs) by large volume injection online turbulent flow solid-phase extraction high performance liquid chromatography in urine samples was developed. An aliquot of 1.0 mL urine sample could be analyzed directly after centrifugation. The analytes were preconcentrated online on a Turboflow C18-P SPE column, eluted in back-flush mode, and then separated on an Acclaim PA2 analytical column. Major parameters such as SPE column type, sample loading flow rate and elution time were optimized in detail. Eight CPs from monochlorophenol to pentacholophenol were measured by multiple-wavelength UV detection at four different wavelengths. The limits of detection (LODs) were between 0.5 and 2 ng/mL. The linearity range was from the limit of quantification to 1000 ng/mL for each compound, with the coefficients of determination (r(2)) ranging from 0.9990 to 0.9996. The reproducibility of intraday and interday relative standard deviations (RSDs) ranged from 0.6% to 4.5% (n=5). The method was successfully applied to analyze eight CPs in urine samples. Good recoveries, ranging from 76.3% to 122.9%, were obtained. This simple, sensitive and accurate method provides an alternative way to rapidly analyze and monitor CPs in urine samples, especially for matters of occupational exposure. CI - (c) 2013 Elsevier B.V. All rights reserved. FAU - Guo, Feng AU - Guo F AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Liu, Qian AU - Liu Q AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Shi, Jian-bo AU - Shi JB AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: jbshi@rcees.ac.cn. FAU - Wei, Fu-sheng AU - Wei FS AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; China National Evironmental Monitoring Center, Beijing, 100012, China. FAU - Jiang, Gui-bin AU - Jiang GB AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131119 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Chlorophenols) SB - IM MH - Chlorophenols/*urine MH - Chromatography, High Pressure Liquid/*methods MH - Humans MH - Reproducibility of Results MH - Solid Phase Extraction/*methods MH - Spectrophotometry, Ultraviolet/*methods OTO - NOTNLM OT - Chlorophenols OT - Online solid-phase extraction OT - Turbulent flow chromatography OT - Urine EDAT- 2014/01/10 06:00 MHDA- 2014/09/03 06:00 CRDT- 2014/01/10 06:00 PHST- 2013/08/29 00:00 [received] PHST- 2013/10/23 00:00 [revised] PHST- 2013/11/01 00:00 [accepted] PHST- 2014/01/10 06:00 [entrez] PHST- 2014/01/10 06:00 [pubmed] PHST- 2014/09/03 06:00 [medline] AID - S0039-9140(13)00880-1 [pii] AID - 10.1016/j.talanta.2013.11.006 [doi] PST - ppublish SO - Talanta. 2014 Feb;119:396-400. doi: 10.1016/j.talanta.2013.11.006. Epub 2013 Nov 19.