THE SPECTROPHOTOMETRIC DETERMINATION OF MICROGRAM AMOUNTS OF CERIUM

Journal Article · Wed Feb 01 04:00:00 EST 1961 · Analytica Chimica Acta (Netherlands)

DOI:https://doi.org/10.1016/0003-2670(61)80035-4· OSTI ID:4070336

Culkin, F; Riley, J P

A spectrophotometric procedure, which has a coefficient of variation of approximately 2%, is described for the determinnation of up to 80 mu g of cerium. Ceric ion formed by oxidation with persulfate in the presence of cathlytic amounts of silver is reduced to the cerous atate by treatment with excess ferrous -phenanthroline reagent. The decrease in optical density of the ferrous -phensnthroline compared with the reagent blank is a measure of the amount of cerium present. The only common cations which cause serious interference are Mn/sup +2/nd Cr+>s/sup 3/. (auth)

• Research Organization: Univ. of Liverpool
• NSA Number: NSA-15-012861
• OSTI ID: 4070336
• Journal Information: Analytica Chimica Acta (Netherlands), Journal Name: Analytica Chimica Acta (Netherlands) Vol. Vol: 24; ISSN ACACA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
CATALYSIS
CATIONS
CERIUM
CHEMISTRY
CHROMIUM
ERRORS
IMPURITIES
INTERFERING ELEMENTS
IONS
IRON
IRON COMPLEXES
LIGHT
MANGANESE
MEASURED VALUES
OPACITY
ORGANIC COMPOUNDS
OXIDATION
PERSULFATES
PHENANTHROLINE
PHOTOMETRY
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SILVER
SPECTRA
SULFUR COMPOUNDS
TRACE AMOUNTS
VARIATIONS