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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
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.
ISSN: 0026-3672
DOI: 10.1007/BF01237260
Source: Mikrochimica Acta [ISSN 0026-3672], v. 83, p. 53-60
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