Quantitation of Trace Metals in Liquid Samples by Dried-Droplet Laser Ablation Inductively Coupled Plasma Mass Spectrometry

Abstract

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Quantitation of trace metals in liquid samples by dried-droplet laser ablation inductively coupled plasma mass spectrometry Yang, Lu; Sturgeon, Ralph E.; Mester, Zoltán http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=fr L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8899121&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8899121&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1021/ac048275aAnalytical Chemistry, 77, 9, pp. 2971Chemistry, 77, 9, pp. -2977Chemistry, 77, 9, pp. , 2005 Quantitation of Trace Metals in Liquid Samples by Dried-Droplet Laser Ablation Inductively Coupled Plasma Mass Spectrometry Lu Yang,* Ralph E. Sturgeon, and Zoltá n Mester Institute for National Measurement Standard, National Research Council Canada, Ottawa, Ontario, Canada K1A 0R6A new, discrete sample introduction approach based on laser ablation (LA) is described for the quantitation of several trace metals in aqueous samples by ICPMS. Dried microdroplets of sample, previously mixed with a sodium acetate matrix, were quantitatively ablated from a polystyrene substrate. Calibration via the method of standard additions or isotope dilution provided accurate results for Ni, Cd, and Pb in drinking water and Se in a yeast extract. Compared to conventional solution nebulization, LA sample introduction provided a 2-7-fold enhancement in absolute sensitivity and transport efficiency of 2-14% for the elements examined. Estimated detection limits are 1-7-fold poorer for the dried-droplet LA technique, primari...

Dried-droplet laser ablation ICP-MS of HPLC fractions for the determination of selenomethionine in yeast

“…Only that fraction (0.75 ml) of HPLC effluent containing SeMet at retention times between 180 and 210 seconds was collected. Dried droplets of the collected eluent were prepared as described previously 19 for the quantitation of SeMet using LA-ICP-MS. Because of the high natural salt content of the HPLC eluents, no additional LA matrix was added. Four replicates of 20 ml of each collected eluent were pipetted onto the surface of a polystyrene weighing boat and located within the confines of a square previously marked on the transverse surface.…”

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“…For calibration, we employed a simple process consisting of spiking the filters with standard solutions, as applied by Tanaka et al (1988) and recently by Hsieh et al (2011). Similar calibration strategies have previously been applied to the determination of trace elements in liquid samples using LA-ICP-MS (Yang et al, 2005;Do et al, 2011) and Pb in blood (Hsieh et al, 2009). Using this approach, we could perform quantitative elemental analysis using LA-ICP-MS within a short period of time.…”

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“…Moreover, deposition of other liquid materials on FP is also possible, and has been also explored in the literature [17,18], but such applications are rarely finally deployed in routine labs.…”