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Spectrophotometric determination of tantalum with 4,5-dibromo-o-nitrophenylfluorone

✍ Scribed by Zheng Wu; Zhaosheng Hu; Xiping Jia

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
411 KB
Volume
231
Category
Article
ISSN
0003-2670

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✦ Synopsis

Macro amounts of tantalum can be determmed dtrectly by spectrophotometry wrth 4,5-dtbromo-o-mtrophenyIfluorone, cttnc actd, hydrogen peroxtde and Tnton X:ItJtJ m Is.%5 moi i--r sulphunc acui 'The apparent moiar absorpttvtty of tantalum at 530 nm 1s 1.84 X lo5 1 mol-' cm-' Beer's law 1s obeyed for O-10 ng of tantalum m 25 ml of solutron at 530 nm and a large amount of mobmm and most foreign tons can be tolerated Results obtained by applymg the proposed method to mobturn oxtde, terromobmm, tucker-base aBoy and a mmerai are sattsfactory

The synthesis of the complexmg agent IS described

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