EDAFOLOGIA, Vol. 11 (3), pp. 329-339, 2004
CARACTERIZACIÓN DE ACIDOS FÚLVICOS Y ÁCIDOS HÚMICOS EXTRAÍDOS DE UNA TURBERA MINEROTRÓFICA
M. Izquierdo; J. Antelo; S. Fio;, D. Gondar; A. Iglesias; R. López; F. Arce*
Departamento de Química Física. Facultad de Química. Universidad de Santiago de Compostela. E15782 Santiago de Compostela. Spain. *florencio.arce@usc.es
Fulvic acids (FA) and humic acids (HA) were extracted from two horizons of a minerotro- phic peat bog in Galicia (NW Spain). The samples were characterized and their acid base properties studied with the techniques commonly used for this type of determinations: UV-Vis, FT-IR, 13C NMR spectrosco- pies, elemental analysis and potentiometric titrations.
Key words: peat bog, fulvic acids, humic acids, acid properties, NICA model