id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-344	Jasim, Wasan Abdil-Wahid; Mohammed, Alaá Kareem; Atawi, Rafiá Kadori	Univariate and Multivariate Optimization of Spectrophotometric Determination of Europium (III) in Pure Form and Synthetic Sample	2017	13	.pdf	application/pdf	3637	186	60	Effect of Reagent Concentration The influence of the concentration of reagent on the development of color was investigated by treating varied concentrations (1 × 10-3 - 3.2 × 10-3M) of reagent solution (Fig. 3). It was observed that the absorbance measured at 464 nm increased with the increase of concentration of reagent and became constant at 2.6 × 10-3 M due to the high stability of the complex, above this concentration no more increase in absorbance values was obtained, therefore, the cited concentration of reagent solution were used.	cache/iajs-344.pdf	txt/iajs-344.txt