EXTRACTION-SPECTROPHOTOMETRIC DETERMINATION OF NICKEL AT MICROGRAM LEVEL IN WATER AND WASTEWATER USING 2-[(2-MERCAPTOPHENYLIMINO)METHYL]PHENOL

被引：0

作者：

Shabani, A. M. Haji ^{[1
]}

Dadfarnia, S. ^{[1
]}

Shahbaazi, Z. ^{[1
]}

Jafari, A. A. ^{[1
]}

机构：

[1] Yazd Univ, Dept Chem, Yazd 89195741, Iran

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA | 2008年 / 22卷 / 03期

关键词：

Ni determination; Liquid-liquid extraction; Schiff bases; Spectrophotometry;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An extraction-spectrophotometric method for determination of nickel at sub ppm level using 2[(2-mercaptophenylimino)methyl]phenol (MPMP) as the new extractant is described. The reagent reacts with nickel(II) at pH > 10 and form a 1:2 brown complex, which is extracted into chloroform. The complex has a maximum absorption at 421 nm with the molar absorptivity of 2.41 x 10(5) W cm(-1). Beer's law is obeyed over the range of 0.011-0.30 mu g mL(-1). The Sandell's sensitivity for 0.001 absorbance unit is 5.34 x 10(-4) mu g cm(-2). The relative standard deviation at 0.018 mu g mL(-1) is 1.1 % (n = 8), The procedure was successfully applied to determination of nickel in wastewater and standard alloy and the accuracy was determined by recovery experiment, independent analysis by furnace-AAS, and analysis of a certified reference martial.

引用

页码：323 / 329

页数：7

共 31 条

[1] Spectroscopic characterization of some tetradentate Schiff bases and their complexes with nickel, copper and zinc [J].