id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ecletica-242	Vaz, Denise de Oliveira; Neves Fernandes, Andreia; Szpoganicz, Bruno; Sierra, Maria Marta de Souza	Potentiometric quantification and speciation of oxygenated groups in humic substances using BEST7 software	2010	6	.pdf	application/pdf	2664	152	60	Five categories – two classes of phenolic groups (phenol and cathecol), two classes of carboxylic groups (benzoic and phtalic) and the combination between them (salicylic) - of oxygenated groups were considered as being responsible for the potentiometric behavior of the sample and were quantitatively determined. A first approximation of the total analytical concentrations of oxygenated groups in the sample was obtained with the Schnitzer method	cache/ecletica-242.pdf	txt/ecletica-242.txt