PMID- 21688391 OWN - NLM STAT- MEDLINE DCOM- 20151005 LR - 20191210 IS - 1615-9314 (Electronic) IS - 1615-9306 (Linking) VI - 34 IP - 16-17 DP - 2011 Aug TI - Aminopropyltriethoxysilane-silica hybrid monolithic capillary microextraction combined with inductively coupled plasma mass spectrometry for the determination of trace elements in biological samples. PG - 2247-54 LID - 10.1002/jssc.201100173 [doi] AB - A simple and sensitive method based on aminopropyltriethoxysilane (APTES)-silica hybrid monolithic capillary microextraction (CME) combined with inductively coupled plasma mass spectrometry (ICP-MS) was developed for the determination of trace elements in biological samples. Under the optimized conditions, the adsorption capacities of APTES-silica hybrid monolithic capillary were 42.5, 55, 57.5, 82.5, 52.5, and 40 mug/m for Mn(II), Co(II), Ni(II), Cu(II), Cd(II), and Pb(II), respectively. The LODs were in the range of 1.2 (Cd)-14 (Pb) ng/L with the relative standard deviations (RSDs) of <5.1% (c=1 mug/L, n=7). The reproducibility of APTES-silica hybrid monolithic preparation ranged from 1.6 to 5.6% in one batch, and from 2.3 to 6.2% in batch-to-batch, respectively. To validate the developed method, two certified reference materials of NIES No. 10-b rice flour and GBW 07601 (GSH-1) human hair were analyzed and the determined values were in good agreement with the certified values. The proposed method has also been applied for the analysis of human hair and urine samples with the recoveries for the spiked samples in the range of 89-106%. CI - Copyright (c) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Zhang, Lin AU - Zhang L AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, P. R. China. FAU - Chen, Beibei AU - Chen B FAU - Peng, Hanyong AU - Peng H FAU - He, Man AU - He M FAU - Hu, Bin AU - Hu B LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110620 PL - Germany TA - J Sep Sci JT - Journal of separation science JID - 101088554 RN - 0 (Propylamines) RN - 0 (Silanes) RN - 0 (Trace Elements) RN - 7631-86-9 (Silicon Dioxide) RN - L8S6UBW552 (amino-propyl-triethoxysilane) SB - IM MH - Hair/*chemistry MH - Humans MH - Limit of Detection MH - Mass Spectrometry/*methods MH - Propylamines MH - Silanes/chemistry MH - Silicon Dioxide/chemistry MH - Solid Phase Microextraction/instrumentation/*methods MH - Trace Elements/*analysis/*isolation & purification MH - Urine/*chemistry OTO - NOTNLM OT - APTES-silica monolithic capillary OT - Biological samples OT - Capillary microextraction OT - Inductively coupled plasma mass spectrometry EDAT- 2011/06/21 06:00 MHDA- 2015/10/06 06:00 CRDT- 2011/06/21 06:00 PHST- 2011/03/02 00:00 [received] PHST- 2011/05/01 00:00 [revised] PHST- 2011/05/02 00:00 [accepted] PHST- 2011/06/21 06:00 [entrez] PHST- 2011/06/21 06:00 [pubmed] PHST- 2015/10/06 06:00 [medline] AID - 10.1002/jssc.201100173 [doi] PST - ppublish SO - J Sep Sci. 2011 Aug;34(16-17):2247-54. doi: 10.1002/jssc.201100173. Epub 2011 Jun 20.