R
Roberto A. Olsina
Researcher at National University of San Luis
Publications - 134
Citations - 3778
Roberto A. Olsina is an academic researcher from National University of San Luis. The author has contributed to research in topics: Detection limit & Inductively coupled plasma. The author has an hindex of 38, co-authored 134 publications receiving 3614 citations. Previous affiliations of Roberto A. Olsina include National Scientific and Technical Research Council.
Papers
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Journal ArticleDOI
Sensitive determination of mercury in tap water by cloud point extraction pre-concentration and flow injection-cold vapor-inductively coupled plasma optical emission spectrometry
Jorgelina C. A. de Wuilloud,Rodolfo G. Wuilloud,María Fernanda Silva,Roberto A. Olsina,Roberto A. Olsina,Luis D. Martinez,Luis D. Martinez +6 more
TL;DR: In this paper, a pre-concentration and determination methodology for mercury at trace levels in water samples was developed, which was successfully applied to the determination of mercury in tap water samples, at pH 9.2 mediated by micelles of the nonionic surfactant polyethyleneglycolmono-p-nonylphenylether (PONPE 5).
Journal ArticleDOI
Trace element determination of Argentine wines using ETAAS and USN-ICP-OES.
R. Lara,Soledad Cerutti,Soledad Cerutti,J. A. Salonia,Roberto A. Olsina,Roberto A. Olsina,Luis D. Martinez,Luis D. Martinez +7 more
TL;DR: A significant aspect in this paper is the samples mineralization step, which allowed the direct determination of the metals in wine samples from the province of Mendoza in Argentina, which compare well with those reported for similar wines from some other parts of the world.
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Preconcentration and speciation of chromium in drinking water samples by coupling of on-line sorption on activated carbon to ETAAS determination.
Raul Andres Gil,Soledad Cerutti,Soledad Cerutti,J. A. Gásquez,Roberto A. Olsina,Roberto A. Olsina,Luis D. Martinez,Luis D. Martinez +7 more
TL;DR: The ETAAS method was successfully applied to the determination of Cr(III) and Cr(VI) in drinking water samples and the calibration graph using the preconcentration system for chromium was linear.
Journal ArticleDOI
On-line preconcentration/determination of cadmium in drinking water on activated carbon using 8-hydroxyquinoline in a flow injection system coupled to an inductively coupled plasma optical emission spectrometer
Soledad Cerutti,María Fernanda Silva,J. A. Gásquez,Roberto A. Olsina,Roberto A. Olsina,Luis D. Martinez,Luis D. Martinez +6 more
TL;DR: An on-line cadmium preconcentration and determination system implemented with inductively coupled plasma optical emission spectrometry associated to flow injection was studied in this article, which was successfully applied to the determination of total Cadmium in drinking water samples.
Journal ArticleDOI
Cloud point extraction of lead in saliva via use of nonionic PONPE 7.5 without added chelating agents.
TL;DR: The analytical performance of the proposed micelle-mediated phase separation of metal ions to preconcentrate trace levels of lead as a prior step to its determination by flame atomic spectroscopy clearly satisfies the typical requirements for control processes.