id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ecletica-619	Echevarría, Marlene Seijo; Déniz, Rubén del Toro; Sáez, Silvio Martinéz; Juan, Francisco Rosell	Concentration of Pb (II) by adsorption and its atomic absorption spectrometric determination	1997	4	.pdf	application/pdf	943	56	50	The effectiveness of the adsorbent from the analytical point of view was later determined, model solutions with known concentrations of lead were passed through adsorbent and the quantity of lead remove was determined in the concentrate by AAS and it was compared with the concentration of the initial solutions. Conclusions It is concluded that the concentration method can be applied to determine small concentrations of lead by employing silica gel impregnated with ZnS, which makes the determination of lead possible from 10 microgram per liter and even less.	cache/ecletica-619.pdf	txt/ecletica-619.txt