Potassium ferrocyanide as a spectrophotometric reagent for the determination of uranium

G. Rizvi

doi:10.1007/bf02041691

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 125: Issue 2

Potassium ferrocyanide as a spectrophotometric reagent for the determination of uranium

Author:

G. Rizvi

G. Rizvi Bhabha Atomic Research Centre Radiochemistry Division Trombay 400 085 Bombay India

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Pages:: 333–339

Online Publication Date:: 14 Aug 2005

Publication Date:: 17 Dec 1988

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02041691

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Abstract

Potassium ferrocyanide gives a colour reaction with U(VI), which is suitable for its determination. The complex absorbs in the wavelength range of 390–397 nm. The optimum pH range for colour development was 1.5–3.5. The molar absorptivity was found to be 4.65·10³ 1·mol^–1·cm^–1. Most of the anions up to 1000 g did not interfere. The method was made selective by extracting U(VI) first with DOSO from the mixture of interfering cations from 1–2M HNO₃ medium and then determining uranium in the back-extracted solution by developing the colour with ferrocyanide. 20 g/10 ml of U(VI) in the final solution could be satisfactorily determined within an RSD of ±2%.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)