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Title: | Pyrocatechol-1-aldehyde salicyloylhydrazone as reagent for the spectrofluorimetric determination of zinc | Authors: | Afonso, A. M. Santana, J. J. González, M. P. Montelongo, F. García |
UNESCO Clasification: | 2301 química analítica | Keywords: | Zinc Physical Chemistry Analytical Chemistry Inorganic Chemistry Zink |
Issue Date: | 1984 | Publisher: | 0026-3672 | Journal: | Mikrochimica Acta | Abstract: | A procedure is developed for the Spectrofluorimetric determination of 10–800 ppb of zinc with pyrocatechol-1-aldehyde salicyloylhydrazone in a 60% (v/v) ethanol-water medium at apparent pH 6.7 (acetic-acetate buffer). λex=400 nm, λem=530 nm. Interferences have been evaluated and the method applied to the determination of zinc in alloys and lubricating oils. Zink bildet mit Brenzcatechin-1-aldehyd-salizyloylhydrazon ein gelbes, fluoreszierendes Chelat in Gegenwart von 60% Ethanol bei pH 6,7 (Essigsäure-Natriumacetat-Puffer); λex=400 nm, λem=530 nm. Zwischen Intensität der Fluoreszenz und Zink-Konzentration besteht im Bereich von 10 bis 800 ppb Linearität. Das Verfahren wurde zur Bestimmung des Zinks in Legierungen und Schmierölen verwendet. |
URI: | http://hdl.handle.net/10553/47200 | ISSN: | 0026-3672 | DOI: | 10.1007/BF01237260 | Source: | Mikrochimica Acta [ISSN 0026-3672], v. 83, p. 53-60 |
Appears in Collections: | Artículos |
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