PMID- 18371664 OWN - NLM STAT- MEDLINE DCOM- 20080826 LR - 20121115 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 74 IP - 4 DP - 2008 Jan 15 TI - Headspace single drop microextraction combined with HPLC for the determination of trace polycyclic aromatic hydrocarbons in environmental samples. PG - 470-7 LID - 10.1016/j.talanta.2007.05.057 [doi] AB - A new method by combining headspace single drop microextraction (HS-SDME) with HPLC fluorescence detection for the determination of trace polycyclic aromatic hydrocarbons (PAHs) in environmental samples was developed. Aqueous solution of saturated beta-cyclodextrin was used as extraction solvent and five PAHs were employed as target analytes. The factors affecting the extraction efficiency were studied in detail and the optimal extraction conditions were established. Beta-cyclodextrin was found to play two important roles, one is the improvement of extraction efficiency of target analytes and the other is the enhancement of their fluorescence intensities in HPLC fluorescence detection. The detection limits for the target analytes were found to be in the range of 0.004-0.247ng/ml and the relative standard deviations (R.S.D.s) of 5.1-7.1% were obtained. The proposed method was applied to the analysis of trace PAHs in environmental samples with satisfactory results. FAU - Wu, Yunli AU - Wu Y AD - Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Xia, Linbo AU - Xia L FAU - Chen, Rui AU - Chen R FAU - Hu, Bin AU - Hu B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070623 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Environmental Pollutants) RN - 0 (Polycyclic Compounds) RN - 0 (beta-Cyclodextrins) RN - JV039JZZ3A (betadex) SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - Environmental Pollutants/*analysis MH - Hydrogen-Ion Concentration MH - Osmolar Concentration MH - Plant Leaves/chemistry MH - Polycyclic Compounds/*analysis MH - Spectrometry, Fluorescence MH - beta-Cyclodextrins/chemistry EDAT- 2008/03/29 09:00 MHDA- 2008/08/30 09:00 CRDT- 2008/03/29 09:00 PHST- 2007/03/27 00:00 [received] PHST- 2007/05/31 00:00 [revised] PHST- 2007/05/31 00:00 [accepted] PHST- 2008/03/29 09:00 [pubmed] PHST- 2008/08/30 09:00 [medline] PHST- 2008/03/29 09:00 [entrez] AID - S0039-9140(07)00419-5 [pii] AID - 10.1016/j.talanta.2007.05.057 [doi] PST - ppublish SO - Talanta. 2008 Jan 15;74(4):470-7. doi: 10.1016/j.talanta.2007.05.057. Epub 2007 Jun 23.