Cloud point extractive spectrophotometric method for determination of uranium in raffinate streams during spent nuclear fuel reprocessing

Autor:	M. Suba, D. Sivakumar, R. V. Subba Rao, K. Dhamodharan, C. K. Mukhopadhyay
Rok vydání:	2019
Předmět:	Detection limit Cloud point medicine.diagnostic_test Health Toxicology and Mutagenesis Radiochemistry Extraction (chemistry) Public Health Environmental and Occupational Health chemistry.chemical_element Resorcinol Raffinate Uranium 010403 inorganic & nuclear chemistry 01 natural sciences Pollution Spent nuclear fuel 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Nuclear Energy and Engineering chemistry Spectrophotometry medicine Environmental science Radiology Nuclear Medicine and imaging Spectroscopy
Zdroj:	Journal of Radioanalytical and Nuclear Chemistry. 322:743-750
ISSN:	1588-2780 0236-5731
DOI:	10.1007/s10967-019-06704-5
Popis:	A cloud point extractive spectrophotometric method was developed for the determination of uranium in raffinate streams. Uranium was extracted to a tri n-octyl phosphine oxide in o-Xylene from raffinate. Uranium present in organic phase was analyzed by spectrophotometry after cloud point extraction of U-PAR (4-(2-Pyridylazo) resorcinol) complex to cetyl trimethyl ammonium bromide—Triton-X-100 medium. The molar absorption coefficient for uranium complex was found to be 2.2 × 104 l mol−1 cm−1. The relative standard deviation for the determination of uranium was found to be 3.9% and with a minimum detection limit of 2 µg uranium per aliquot.
Databáze:	OpenAIRE
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