Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47194
Title: 1,5-bis-(2,3-dihydroxy-phenylmethylene)-thiocarbohydrazone as reagent for the spectrofluorimetric determination of nanogram amounts of gallium
Authors: Santana, José J. 
González-Dávila, Melchor 
Afonso, Ana M.
García-Montelongo, Francisco
UNESCO Clasification: 2301 química analítica
Keywords: Gallium
Spectrofluorimetric
Bological samples
1,5-bis-(2,3-dihydroxy-phenylmethylene)-thiocarbohydrazone
Issue Date: 1990
Publisher: 0026-3672
Journal: Mikrochimica Acta 
Abstract: A method is developed for the spectrofluorimetric determination of nanogram amounts of gallium using 1,5-bis-(2,3-dihydroxy-phenylmethylene)-thiocarbohydrazone in a 60% (v/v) ethanol-water medium phthalate buffered to pH* 3.5 (λex 400 nm, λem 493 nm, corrected), which allows the determination of 20–100 and 120–600 μg/ml with 1.32 and 0.80 as relative error, respectively, and 5.1 ng·ml−1 as detection limit. Interferences have been evaluated and the method applied to the determination of gallium in samples of bovine liver, heart and kidney.
URI: http://hdl.handle.net/10553/47194
ISSN: 0026-3672
DOI: 10.1007/BF01244498
Source: Mikrochimica Acta [ISSN 0026-3672], v. 100, p. 55-61
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