SPECTROPHOTOMETRIC DETERMINATION OF MICROGRAM AMOUNTS OF CERIUM WITH 2- METHYL-8-QUINOLINOL

Journal Article · Sat Dec 01 04:00:00 EST 1962 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60193a019· OSTI ID:4749960

Misumi, S; Nagano, N

A spectrophotometric method for the determination of micro amounts of cerium with 2-methyl-8-quinolinol is described. Cerium forms a complex with 2- methyl-8qquinolinol at a pH of about 10 when malic acid is used as an auxiliary chelating agent. The colored cerium (IV) complex, Ce-(C/sub 10/H/sub 8/NO)/sub 4/ , is completely soluble and remarkably stable in carbon tetrachloride, The carbon tetrachloride extract containing the complex has a miximum absorbance at 485 m mu , and Beer's law is followed with good precision up to 0.5 mu g of Ce per ml. Iron(II, III), thorium(IV), the rare earths(III), fluoride, and phosphate ions interfere. (auth)

• Research Organization: Kyushu Univ., Fukuoka
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-005988
• OSTI ID: 4749960
• 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: 34; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ACIDITY
ALCOHOLS
CARBON TETRACHLORIDE
CERIUM
CERIUM COMPLEXES
CHELATES
CHEMISTRY
COLOR
FLUORIDES
HETEROCYCLICS
HYDROXIDES
INTERFERENCE
IRON COMPOUNDS
MALIC ACID
METHYL RADICALS
ORGANIC ACIDS
ORGANIC NITROGEN COMPOUNDS
PHOSPHATES
PHOTOMETRY
PYRIDINES
QUANTITATIVE ANALYSIS
QUINOLINE
RARE EARTHS
SOLUBILITY
SPECTRA
SPECTROSCOPY
STABILITY
THORIUM COMPOUNDS
TRACE AMOUNTS