Complex formation of trivalent americium with salicylic acid at very low concentrations
Complex formation of trivalent americium with salicylic acid at very low concentrations
Müller, M.; Acker, M.; Taut, S.; Bernhard, G.
For the first time, the complexation of americium(III) with salicylic acid was studied at trace metal concentrations using a 2.0 m Long Path Flow Cell for UV–vis spectroscopy. The detection limit of Am(III) in aqueous solution at pH 3.0 was found to be 5 9 10-9 M. Two Am(III)-salicylate complexes were formed at pH 5.0 in 0.1 M NaClO4, indicated by a clear red shift of the absorption maximum. The absorption spectra obtained from spectrophotometric titration were analyzed by means of factor analysis and complex stabilities were calculated to be log b110 = 2.56 ± 0.08 and log b120 = 3.93 ± 0.19.
Keywords: Americium; Long path flow cell; UV–vis; Detection limit; Complexation; Salicylic acid
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Journal of Radioanalytical and Nuclear Chemistry 286(2010), 175-180
DOI: 10.1007/s10967-010-0639-9
Cited 5 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-14880