id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-869	Darweesh, S. A.; Hammodi, A. S.; Mahmmod, R. M.	A new Spectrophotometric Method For The Determination of La (III) With 3-Hydroxy -4-(2-hydroxyPhenyl azo) Naphthalene -1- Sulfonic Acid	2016	14	.pdf	application/pdf	3032	181	64	Effect of reagent concentration Various volumes ( 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1 and 1.2 ml ) of reagent solution were added to 6µg.ml -1 of La(III) solution, 0.5 ml of 2.72 × 10-3 M was found to be enough to develop the color to its fully intensity and a large excess of reagent solution has deleterious effect on the absorbance (Fig.3). A series of solutions were prepared by transferring 1 ml aliquots of La(111) solution (3.24x10 -4) M , then increasing amount of reagent solution ranging from ( 1.62x10-4 m mole-1.45x10-3m mole ) were added.	cache/iajs-869.pdf	txt/iajs-869.txt