SPECTROPHOTOMETRIC DETERMINATION OF YTTRIUM WITH PYROCATECHOL VIOLET

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

DOI:https://doi.org/10.1021/ac60164a009· OSTI ID:4163766

Young, J P; White, J C; Ball, R G

The yttrium-Pyrocatechol Violet complex has been utilized in the development of a sensitive method for the colorimetric determination of Y. The molar absorptivity of this complex is 25,900 at a wave length of 665 m mu . Its absorbance conforms to Beer's law up to a concentration of Y of 1.8 mu g per ml. Trace amounts of Y can be determined in the presence of the alkaline earths, Zn, Ni, and nitrate and sulfate without prior separations. When first separated by solvent extraction with tri-n-octylphosphine oxide, large amounts of Fe, U, Zr, Th, and Mo can also be tolerated. The rare earth elements, Sc, V, fluoride, and phosphate ions interfere. The coefficient of variation for the determination of Y by this method is 3%. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-016616
• OSTI ID: 4163766
• 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

ABSORPTION
ALKALINE EARTH METALS
CHEMISTRY
COLOR
COMPLEXES
DYES
FLUORIDES
IRON
MEASURED VALUES
MOLYBDENUM
NICKEL
NITRATES
OXIDES
PHOSPHATES
PHOSPHINES
PHOTOMETRY
QUANTITATIVE ANALYSIS
RARE EARTHS
SCANDIUM
SENSITIVITY
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTRA
SULFATES
THORIUM
TRACE AMOUNTS
URANIUM
VANADIUM
YTTRIUM
ZINC
ZIRCONIUM