DETERMINATION OF TECHNETIUM BY CONTROLLED-POTENTIAL COULOMETRIC TITRATION IN BUFFERED SODIUM TRIPOLYPHOSPHATE MEDIUM

Journal Article · Wed May 01 00:00:00 EDT 1963 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60199a036· OSTI ID:4699443

Terry, A A; Zittel, H E

A controlled-potential coulometric method for the determination of Tc was developed whereby Tc(VII) is titrated in an acetate-buffered (pH 4.7) solution of sodium tripolyphosphate at a potential of --0.70 volt vs S.C.E. In the range from about 0.5 to 5 mg of Tc(VII) titrated, the relative error of the method is about 450 deg C in a 1% and the relative standard deviation about 0.5%. Various possible interferences were studied; Tc(VII) can be removed quantitatively from most interfering ions by distillation from sulfuric acid solution. The method is relatively simple and rapid. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-019950
• OSTI ID: 4699443
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 35; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETATES
ACIDITY
CHEMISTRY
COULOMETRY
DISTILLATION
ELECTRIC POTENTIAL
ERRORS
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SENSITIVITY
SODIUM PHOSPHATES
SOLUTIONS
SULFURIC ACID
TECHNETIUM