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Liquid ion-selective electrode for determination of technetium (in Russian)

Journal Article · · Sov. Radiochem. (Engl. Transl.); (United States)
OSTI ID:6688040
; ;
The electrode characteristics of an ion-selective electrode (ISE) based on tetra-decylphosphonium and nitrone pertechnetates were studied. It was shown that the electrode function of an ISE based on tetradecylphosphonium in chloride and sulfate solutions is linear in the technetium concentration range of 3 x 10/sup -6/-10/sup -2/ mole/liter, and the curvature of the electrode function at 25/sup 0/C is 60 mV/pTc. The selectivity coefficients in solutions of different electrolytes were determined. A change in pH from 0.3 to 11 does not influence the potential. The possibility of using the ISE for the determination of technetium in the reprocessing products of spent fuel from nuclear power stations after its extraction by tributyl phosphate has been shown.
OSTI ID:
6688040
Journal Information:
Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 28:3; ISSN SVRDA
Country of Publication:
United States
Language:
Russian

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Related Subjects

050800* -- Nuclear Fuels-- Spent Fuels Reprocessing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ALKALI METAL COMPOUNDS
BUTYL PHOSPHATES
CHEMICAL ANALYSIS
CHLORIDES
CHLORINE COMPOUNDS
ELECTRODES
ELECTROLYTES
ELEMENTS
ENERGY SOURCES
ESTERS
EXTRACTION
FUELS
HALIDES
HALOGEN COMPOUNDS
ION EXCHANGE
ION EXCHANGE MATERIALS
ION SELECTIVE ELECTRODE ANALYSIS
ION-SELECTIVE ELECTRODES
MATERIALS
MATERIALS TESTING
METALS
NITROGEN COMPOUNDS
NUCLEAR FUELS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PERTECHNETATES
PHOSPHORIC ACID ESTERS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POTASSIUM SULFATES
REACTOR MATERIALS
REFRACTORY METAL COMPOUNDS
REPROCESSING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPENT FUELS
SULFATES
SULFUR COMPOUNDS
TBP
TECHNETIUM
TECHNETIUM COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS