|Title:||Spectrofluorimetric determination of zinc with pyrocatechol1-aldehyde 2-pyridylhydrazone||Authors:||Afonso, Ana M.
Santana, José J.
Montelongo, Francisco Garcia
|UNESCO Clasification:||2301 química analítica||Keywords:||Zinc determination
Pyrocatechol- I-aldehyde 2-pyridylh ydrazone
|Issue Date:||1986||Publisher:||0003-2654||Journal:||Analyst (London. 1877. Print)||Abstract:||Pyrocatechol-1-aldehyde 2-pyridylhydrazone was synthesised and its ionisation constants spectrophotometrically determined. A procedure was developed for the spectrofluorimetric determination of 12–250 ng ml–1 of zinc in 50%V/V ethanol-water medium, acetate-buffered to apparent pH 5.5 (λex.= 398 nm, λem.= 521 nm), using the above reagent. Interferences were evaluated and the procedure was applied satisfactorily to the determination of zinc in potable tap water.||URI:||http://hdl.handle.net/10553/47197||ISSN:||0003-2654||DOI:||10.1039/AN9861100327||Source:||The Analyst [ISSN 0003-2654], v. 111, p. 327-329|
|Appears in Collections:||Artículos|
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