COULOMETRIC DETERMINATION OF EUROPIUM AND YTTERBIUM AT CONTROLLED POTENTIAL

Journal Article · Sat Oct 01 04:00:00 EDT 1960 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60167a013· OSTI ID:4130643

Wise, E N; Cokal, E J

Europium and ytterbium were determined individually by the one-electron reduction of their trivalent ions in methanolic tetraethylammonium bromide, with a mean absolute error 0.05 microequivalent in the sample range 0.5 to 20 microequivalent. The reduction of ytterbium was induced by the reduction of europium, so that only their sum could be determined by reduction in samples contairing both elements. In such cases, europium was determined in a separate aliquot by coulometric oxidation in 0.1 M hydrochloric acid, and ytterbium was found by difference. (auth)

• Research Organization: Univ. of Arizona, Tucson
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-000147
• OSTI ID: 4130643
• 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: 32; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALKYL RADICALS
AMMONIUM COMPOUNDS
BROMIDES
CHEMISTRY
CONTROL
COULOMETRY
ELECTRONS
ELEMENTS
EUROPIUM
HYDROCHLORIC ACID
INDUCTION
IONS
METHANOL
OXIDATION
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REDUCTION
VOLTAMETRY
YTTERBIUM