Iridium as a permanent modifier for determination of cadmium and lead in sediment and biological samples by furnace atomization plasma emission spectrometry

Abstract

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Iridium as a permanent modifier for determination of cadmium and lead in sediment and biological samples by furnace atomization plasma emission spectrometry Grinberg, P.; Campos, R. C.; Sturgeon, R.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=8897726&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8897726&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/10.1039/b203030fJournal of Analytical Atomic Spectrometry, 17, 7, pp. 693-698, 2002 Iridium as a permanent modifier for determination of cadmium and lead in sediment and biological samples by furnace atomization plasma emission spectrometry The use of iridium as a permanent modifier for the determination of lead and cadmium in marine sediment and biological tissues by furnace atomization plasma emission spectrometry (FAPES) was evaluated. The Ir coating procedure, atomization conditions and FAPES parameters were optimized for best analytical response and minimum background signal. Good precision (less than 3% RSD) can be achieved with the proposed method. Certified Reference Materials from the National Research Council of Canada were analyzed to verify the accuracy of this technique. Matrix interference was compensated for by the use of standard additions calibration and good agreement was achieved between found and certified values. Detection limits of 3.8 ng g 21 for Pb and 4.0 ng g 21 for Cd in MESS-3 and PACS-2 marine sediment and 4.1ng g 21 for Pb and 2.2 ng g 21 for Cd in D...

Determination of Cadmium, Chromium, Copper and Lead in Sediments and Soil Samples by Electrothermal Atomic Absorption Spectrometry Using Zirconium Containing Chemical Modifiers

“…Decomposition of samples was performed in a Milestone Ethos Sel microwave oven according to the following procedures described in previous works 9,15,22,23 in three replicates. A portion of each sample (0.10 -0.30 g) was accurately weighed into a Teflon digestion vessel, then 2.0 ml concentrated HNO3, 1.0 ml concentrated HClO4 and 1.0 ml HF were subsequently added to the vessel, with a gentle swirl of the acid mixture.…”

Atomic spectrometry update. Environmental analysis

“…The use of Ir as a permanent modifier for the determination of Cd and Pb in marine sediment and biological tissues by electrothermal vaporisation plasma emission spectrometry was evaluated by Grinberg and co-workers. 181 Good precision (less than 3% RSD) could be achieved with the proposed method. Standard addition calibrations were used to compensate for matrix interference and good agreement was achieved between measured and certified values.…”

“…Furnace atomisation plasma emission spectrometry (FAPES) provided excellent detection limits of 4.0 and 3.8 ng g 21 for Cd and Pb, respectively. 181 The use of iridium as a permanent modifier played an important role in the performance of the method and the best results were achieved when both the graphite tube wall and the centre electrode were coated.…”

Atomic spectrometry update. Clinical and biological materials, foods and beverages

“…A permanent modifier of iridium was found by Grinberg et al 88 to be suitable for the determination of Cd and Pb in digests of tissue by FAPES. Matrix interference was compensated for by standard additions calibration.…”

“…There appears to be a renewed interest in a number of elements during this review period, including Cd. Grinberg et al 88 selected Ir as a permanent chemical modifier for the determination of Cd and Pb in biological tissues by FAPES. The authors described the tube coating procedure and furnace temperature programme for optimum sensitivity and minimal background signal.…”