SIMULTANEOUS DETERMINATION OF BERYLLIUM AND ALUMINUM IN MIXTURES USING DERIVATIVE SPECTROPHOTOMETRY

被引：28

作者：

AGNIHOTRI, NK ^{[1
]}

SINGH, HB ^{[1
]}

SHARMA, RL ^{[1
]}

SINGH, VK ^{[1
]}

机构：

[1] UNIV DELHI,DEPT CHEM,DELHI 110007,INDIA

来源：

TALANTA | 1993年 / 40卷 / 03期

关键词：

D O I：

10.1016/0039-9140(93)80254-O

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The spectrophotometric determination of beryllium and aluminium with 5,8-dihydroxy-1,4-naphthoquinone in the presence of a non-ionic surfactant is reported. Absorption maxima, molar absorptivity and Sandell's Sensitivity of 1:2 (M:L) beryllium and aluminium complexes are, 585 nm and 598 nn, 1.63 x 10(4) l.mole-1.cm-1 and 2.04 x 10(4) l.mole-1.cm-1, and 0.55 ng/cm2 and 1.32 ng/cm2 respectively. Beer's law is obeyed between 7.20-3.96 x 10(2) ng/ml beryllium and 1.08 x 10(1)-1.08 x 10(3) ng/ml aluminium. A method for simultaneous determination of beryllium and aluminium in their mixture using derivative spectra is described. The range 3.6 x 10(1)-3.6 x 10(2) ng/ml beryllium could be determined in the presence of 1.08 x 10(2)-1.08 x 10(3) ng/ml aluminium, and vice versa.

引用

页码：415 / 423

页数：9

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