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Contribution à l'étude du dosage de traces d'acide borique par luminescence
Author(s) -
Marcantonatos M.,
Gamba G.,
Monnier D.
Publication year - 1969
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19690520220
Subject(s) - dibenzoylmethane , chemistry , boric acid , luminescence , phosphorescence , sulfuric acid , fluorescence , ether , nuclear chemistry , inorganic chemistry , organic chemistry , optics , physics
A highly sensitive luminescent reaction is proposed for the determination of submicrotraces of boric acid by complexation with dibenzoylmethane in ether‐concentrated sulfuric acid. The optimal conditions of complex formation between boric acid and dibenzoylmethane are investigated, luminescence spectral caracteristics of the solutions of the complex are described, and the phosphorescence mean lifetime of the dibenzoylmethane‐boric acid system is evaluated. Analytical curves, established by fluorimetry and phosphorimetry, are satisfactory. 0.0005 μg B/ml is the minimum detectable concentration.