PMID- 22608416 OWN - NLM STAT- MEDLINE DCOM- 20120913 LR - 20131121 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 94 DP - 2012 May 30 TI - Solidified floating organic drop microextraction combined with ETV-ICP-MS for the determination of trace heavy metals in environmental water samples. PG - 70-6 LID - 10.1016/j.talanta.2012.02.053 [doi] AB - A new method of solidified floating organic drop microextraction (SFODME) combined with electrothermal vaporization (ETV)-inductively coupled plasma mass spectrometry (ICP-MS) was developed for the determination of trace heavy metals in environmental water samples with sodium diethyldithiocarbamate (DDTC) as both chelating reagent in SFODME and chemical modifier in ETV. The factors affecting the microextraction efficiency were studied in detail and the optimal extraction conditions were established. Under the optimal conditions, the limits of detection (LODs) for SFODME-ETV-ICP-MS determination of Co, Pd, Cd, Hg, Pb and Bi were found to be 0.0060, 0.0091, 0.0020, 0.0041, 0.0170 and 0.0041 ng mL(-1), respectively, with the relative standard deviations (RSDs) of 2.8-10.0% (c=0.5 ng mL(-1), n=7). The developed method was successfully applied to the analysis of six target metals in Yangtze River and East Lake water samples with recoveries ranging from 77.7 to 119.1%. To validate the accuracy of the method, a certified reference material of Environmental Water (GSBZ50009-88) was analyzed and the determined values were in good agreement with the certified values. CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Guo, Xueqin AU - Guo X AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China. FAU - He, Man AU - He M FAU - Chen, Beibei AU - Chen B FAU - Hu, Bin AU - Hu B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120301 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Chelating Agents) RN - 0 (Metals, Heavy) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) RN - 99Z2744345 (Ditiocarb) SB - IM MH - Chelating Agents/chemistry MH - Ditiocarb/chemistry MH - Environmental Monitoring MH - Hot Temperature MH - Lakes/*chemistry MH - Limit of Detection MH - Metals, Heavy/*analysis MH - Reference Standards MH - Solid Phase Microextraction/*methods MH - Spectrophotometry, Atomic MH - Volatilization MH - Water/*chemistry MH - Water Pollutants, Chemical/*analysis EDAT- 2012/05/23 06:00 MHDA- 2012/09/14 06:00 CRDT- 2012/05/22 06:00 PHST- 2011/12/12 00:00 [received] PHST- 2012/02/21 00:00 [revised] PHST- 2012/02/22 00:00 [accepted] PHST- 2012/05/22 06:00 [entrez] PHST- 2012/05/23 06:00 [pubmed] PHST- 2012/09/14 06:00 [medline] AID - S0039-9140(12)00191-9 [pii] AID - 10.1016/j.talanta.2012.02.053 [doi] PST - ppublish SO - Talanta. 2012 May 30;94:70-6. doi: 10.1016/j.talanta.2012.02.053. Epub 2012 Mar 1.