Here we have studied the complexation of naringin with Al(III) under physiological conditions (i.e., at 37 C and in 0.16 mol L1 NaCl). Solubility and protonation constants of the ligand were first determined in order to evaluate the competition of naringin for the Al(III) and H+ ions. Speciation analysis made by potentiometric titrations and supported by UV data shows that a complexation occurs at a 1 : 1 ligandto-Al(III) stoichiometric ratio. Notably, these data combined with mass spectrometry results indicate that the complexation site is located on the b-hydroxy ketone moiety

Mass spectrometry and potentiometry studies of Al(III)–naringin complexes

BARTELLA, Lucia;E. Furia
;
L. Di Donna
2017

Abstract

Here we have studied the complexation of naringin with Al(III) under physiological conditions (i.e., at 37 C and in 0.16 mol L1 NaCl). Solubility and protonation constants of the ligand were first determined in order to evaluate the competition of naringin for the Al(III) and H+ ions. Speciation analysis made by potentiometric titrations and supported by UV data shows that a complexation occurs at a 1 : 1 ligandto-Al(III) stoichiometric ratio. Notably, these data combined with mass spectrometry results indicate that the complexation site is located on the b-hydroxy ketone moiety
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/266825
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