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http://hdl.handle.net/10553/47196
| Title: | Spectrofluorometric determination of zinc with 1,5-bis(2,3-dihydroxyphenylmethylene) thiocarbohydrazone | Authors: | Afonso, A. M. González-Dávila, M. Santana, J. J. García-Montelongo, F. |
UNESCO Clasification: | 2301 química analítica | Keywords: | Spectrofluorimetry Zinc |
Issue Date: | 1987 | Publisher: | 0003-2670 | Journal: | Analytica chimica acta (Print) | Abstract: | 1,5-Bis(2,3-dihydroxyphenylmethylene)thiocarbohydrazone was synthesized; its ionization constants are reported. A procedure is described for the spectrofluorimetric determination of 5–540 ng ml−1 zinc in 60/40 (v/v) ethanol/water medium, acetate-buffered to apparent pH 6.5 (λex=400 nm, λem=508 nm). Interferences were evaluated and the procedure was applied with good results to the determination of zinc in potable waters (0.3–3 μg ml−1) and lubricating oils. | URI: | http://hdl.handle.net/10553/47196 | ISSN: | 0003-2670 | DOI: | 10.1016/S0003-2670(00)85916-4 | Source: | Analytica Chimica Acta [ISSN 0003-2670], v. 202, p. 207-213 |
| Appears in Collections: | Artículos |
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