4-(21-thiazolylazo) resacetophenone oxime. A new analytical reagent for the spectrophotometric determination of uranium (VI)期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

4-(21-thiazolylazo) resacetophenone oxime. A new analytical reagent for the spectrophotometric determination of uranium (VI)

Authors:	A Ramesh J Krishnamacharyulu L K Ravindranath S Brahmaji Rao

Affiliation:	(1) JNTU Institute of Chemical Technology, P.B.No. 17, 515 001 Anantapur, A.P., India;(2) Department of Chemistry, S.K. University, 515 003 Anantapur, India

Abstract:	4-(2¹-Thiazolylazo) resacetophenone oxime forms a pink colored soluble complex with uranium(VI) in buffer solutions of pH 6.0. The colored complex has a maximum absorbance at the wavelength 572 nm and the color is stable for about 48 h. The system obeys Beer's law over the concentration range 0.2–6.0 g of uranium cm^–3. The molar absorptivity and the Sandell sensitivity of the complex are 6.2×10⁴ dm³.mol^–1.cm^–1 and 0.0038 g cm^–2, respectively. Effect of various diversions has been studied and the method was successfully applied for the determination of uranium in rock samples.

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