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000016488 0247_ $$2DOI$$a10.1016/j.ijms.2011.03.007
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000016488 041__ $$aeng
000016488 082__ $$a530
000016488 084__ $$2WoS$$aPhysics, Atomic, Molecular & Chemical
000016488 084__ $$2WoS$$aSpectroscopy
000016488 1001_ $$0P:(DE-HGF)0$$aKumtabtim, U.$$b0
000016488 245__ $$aBiomonitoring for arsenic, toxic and essential metals in single hair strands by laser ablation inductively coupled plasma mass spectrometry
000016488 260__ $$a[S.l.]$$bElsevier Science$$c2011
000016488 300__ $$a185–191
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000016488 440_0 $$02787$$aInternational Journal of Mass Spectrometry$$v207$$x1387-3806$$y1
000016488 500__ $$aThe authors would like to thank Thermo Scientific, Bremen for instrumental support for the Brain Met Centre and L. Terrier for providing hair samples. Usarat Kumtabtim would like to acknowledge the Office of Higher Education Commission (Thailand) for financial support of her research in the Brain Met laboratory at Forschungszentrum Julich (www.brainmet.com/).
000016488 520__ $$aLaser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been developed as reliable analytical technique for the quantitation of metal distributions at micrometre resolution. In this work a novel microanalytical strategy for biomonitoring of arsenic, toxic and essential metals in single hair strands is proposed. Two different calibration strategies in LA-ICP-MS were developed using either certified hair standard reference material (IAEA 086) or prepared matrix-matched laboratory hair standards doped with analytes of interest at defined concentration. Powdered hair standards and human hair strands mounted on a sticky tape in the LA chamber were analyzed under the same experimental conditions by an optimized LA-ICP-MS technique. The use of hair powder standard allows calibration curves to be obtained by plotting the analyte ion (M+) intensity normalized to S-34(+) (the ratio M+/S-34(+)) as a function of the concentration determined by ICP-MS of acidic digests. The linear correlation coefficients (R) of calibration curves for analytes As, Ba, Cd, Ce, Co, Cr, Cu, Fe, Ga, Hg, Mg, Mo, Ni, Pb, Rb, Sr, Ti and U were typically between 0.985 and 0.999. The limit of detection (LOD) was 0.6 mu g g(-1) for As and ranged from 0.3 to 7.8 mu g g(-1) for the other analytes. Distinct elemental exposition time profiles were observed in hair samples from five volunteers. (C) 2011 Elsevier B.V. All rights reserved.
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000016488 65320 $$2Author$$aArsenic
000016488 65320 $$2Author$$aBiomonitoring
000016488 65320 $$2Author$$aHair strand
000016488 65320 $$2Author$$aLaser ablation inductively coupled plasma mass spectrometry
000016488 65320 $$2Author$$aMetal distribution
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000016488 7001_ $$0P:(DE-Juel1)VDB96675$$aBecker, J.S.$$b4$$uFZJ
000016488 773__ $$0PERI:(DE-600)1484635-4$$a10.1016/j.ijms.2011.03.007$$gVol. 307$$p185–191$$q307$$tInternational journal of mass spectrometry$$v307$$x1387-3806$$y2011
000016488 8567_ $$uhttp://dx.doi.org/10.1016/j.ijms.2011.03.007
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