title: Mineralization procedure for use with the fluorometric determination of zinc in biological samples.
abstract: Several minerelization procedures have been evaluated for use in conjunction with a method to determine zinc in milk, eggs, water and whole diets, based on the formation and extraction into diethyl ether, of Zn-5,7-dibromo-8-quinolinol. The results were compared with the known contents of standard samples or those obtained by flame atomic-absorption spectrometry. The most satisfactory procedure employed digestion with acid mixtures to destroy organic matter, and yielded a detection limit of 0.3 mg/kg for Zn.
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain.
authors.forename: P
authors.initials: P
authors.lastname: Fernandez
authors.forename: C P
authors.initials: CP
authors.lastname: Conde
authors.forename: A M
authors.initials: AM
authors.lastname: Gutierrez
authors.forename: C
authors.initials: C
authors.lastname: Camara