Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 220: Issue 2
Spectrophotometric determination of uranium with 5-(2′-carboxyphenyl)azo-8-quinolinol in the non-ionic micellar medium of Triton X-100
Authors:
R. Saran Chemical Laboratory, Regional Center for Exploration and Research Atomic Minerals Division, Department of Atomic Energy Assam Rifles (P.O.) 793011 Shillong India

Search for other papers by R. Saran in
Current site
Google Scholar
PubMed Close
and
N. Baishya Gauhati University Department of Chemistry Gopinath Bardoloi Nagar 781014 Gauhati India

Search for other papers by N. Baishya in
Current site
Google Scholar
PubMed Close
Pages:
217–221
Online Publication Date:
14 Aug 2005
Publication Date:
01 Jun 1997
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02034859
Restricted access

Abstract  

Triton X-100, a non-ionic surfactant, has been used to sensitize the reaction of 5-(2-carboxyphenyl)azo-8-quinolinol with uranium in aqueous medium at pH 5.2–6.1 to form a wine red coloured complex. The micellar sensitization results in two and a half-times enhanced molar absorptivity enabling the determination of uranium in rock samples at ppm level, stability of the complex enhanced from 4 hours to at least 72 hours. Extraction of the complex is avoided making the procedure simple, rapid and easy in operation. The molar absorptivity and Sandell's sensitivity of the complex are 1.50·104l·mol–1·cm–1 and 15.9 ng·cm–2, respectively, at max=568 nm. Beer's law is obeyed over the range 0–3.3 g·ml–1 of uranium. An amount as low as 0.19 g·ml–1 of uranium could be determined satisfactorily within a relative standard deviation of ±1.3%. The limits of determination and practical quantitation are 0.29 and 1.80 ppm, respectively. The method was applied to the determination of uranium in soil, stream sediment and rock samples.

  • Collapse
  • Expand
Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

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)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Dec 2024 0 0 0
Jan 2025 1 0 0
Feb 2025 4 0 0
Mar 2025 5 0 0
Apr 2025 1 0 0
May 2025 1 0 0
Jun 2025 0 0 0