Determination of Bismuth by Dielectric Barrier Discharge Atomic Absorption Spectrometry Coupled with Hydride Generation: Method Optimization and Evaluation of Analytical Performance

Abstract

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Determination of bismuth by dielectric barrier discharge atomic absorption spectrometry coupled with hydride generation: method optimization and evaluation of analytical performance Kratzer, Jan; Boušek, Jaroslav; Sturgeon, Ralph E.; Mester, Zoltán; Dědina, Jiří 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=21275495&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=21275495&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/ac502093yAnalytical Chemistry, 86, 19, pp. 9620-9625, 2014-09-23 ABSTRACT: Atomization of bismuth hydride in a 17 W planar quartz dielectric barrier discharge (DBD) atomizer was optimized and the performance of this device compared to that of a conventional quartz tube atomizer (QTA) for atomic absorption spectrometry (AAS). Modification of the inner surface of the DBD atomizer using dimethyldichlorsilane (DMDCS) was essential since it improved sensitivity by a factor of 2−4. Argon, at a flow rate of 125 mL min −1 , was the best DBD discharge gas. Free Bi atoms were also observed in the DBD with nitrogen, hydrogen, and helium discharge gases but not in air. The detection limit for Bi (1.1 ng mL) is worse than with the QTA (0.16 ng mL −1 Bi). A poorer detection limit compared to a QTA is a consequence of the shorter optical path of the DBD. Moreover, the lower atomization efficiency and/or faster decay of free atoms in the DBD has to be considered. The performance of the DBD as an atomizer reflects both ef...

Dielectric barrier discharge plasma atomizer for hydride generation atomic absorption spectrometry—Performance evaluation for selenium

“…The peak area characteristic mass (m 0 ) found in quartz tube atomizers during various studies in our laboratory were: 24 pg for Sn [31], 9.3 pg for Se [32], 8.7 pg [32] and 25 pg [33] for Sb, respectively. Atomization of bismuth hydride was thoroughly studied and compared in DBD and externally heated quartz tube atomizers [26]. Whereas m 0 of 6.3 pg Bi was found in the quartz tube atomizer, which is in accordance with the values found for Sn, Se and Sb in the same atomizer, much higher values (m 0 = 52 pg) were found in DBD [26].…”

“…The DBD atomizer as well as its power supply source were identical as those described in detail in our previous work [26]. Briefly, the atomizer was fused together from two quartz microscope slides (15 × 75 mm, 1 mm thickness) and two quartz spacers (3 mm × 3 mm, 75 mm long) purchased from UQG Optics Ltd., England.…”

“…Quartz tube atomizers in AAS and diffusion flames in AFS [22,23] are the most common atomizers of hydrides in analytical spectrometry. In the last decade, DBD atomizers have been investigated as alternative hydride atomizers by a couple of authors in both AAS [24][25][26] and AFS [27][28][29][30]. The fundamental drawback of all the present DBD works is, with the exception of our study focused on bismuth hydride atomization in DBD with AAS detection [26], that they include only optimization of the basic DBD parameters followed by analytical figures of merit quantified for the DBD atomizers.…”

“…Atomization of bismuth hydride was thoroughly studied and compared in DBD and externally heated quartz tube atomizers [26]. Whereas m 0 of 6.3 pg Bi was found in the quartz tube atomizer, which is in accordance with the values found for Sn, Se and Sb in the same atomizer, much higher values (m 0 = 52 pg) were found in DBD [26]. This observation was explained by lower atomization efficiency of bismuth hydride and/or shorter lifetime of free Bi atoms in the DBD compared to quartz tube atomizers [26].…”

Ion pairing based polyurethane foam sorbent packed column combined with inductively coupled plasma–optical emission spectrometry for sensitive determination and chemical speciation of bismuth(III & V) in water

“…Several sensitive methods such as furnace atomic absorption spectrometry (FAAS) combined with liquid-liquid extraction with trioctylmethylammonium nitrate [7][8][9][10][11][12], tungsten trap hydride generation atomic absorption spectrometry [13], hydride generation associated with inductively coupled plasma-optical emission spectrometry (HG-ICP-OES) [14,15], combination of ICP-MS with high performance liquid chromatography (HPLC) and gas chromatography (GC) [16], chemical hydride generation inductively coupled and microwave induced plasma with OES detection [17], low temperature GC on-line coupled with an ICP-MS for alkylated Bi(III) species in soils of anaerobic character and in sediments [18], high performance size-exclusion chromatography coupled to ICP-MS for multi element-specific detection [19], graphite furnace atomic absorption spectrometry (GFAAS) [7], X-ray absorption spectroscopy [20] and resonance light scattering using quaternary ammonium salts as molecular probe [21] have been reported for analysis of trace concentrations of Bi. Most of these methods provided data only on total Bi determination.…”