ABSORPTION SPECTRA OF TRIVALENT LANTHANIDE IONS IN AQUEOUS SOLUTION IN THE NEAR INFRARED REGION

Journal Article · Wed Jan 01 04:00:00 EST 1964 · Tokyo Kogyo Shikensho Hokoku (Japan) Changed to J. Natl. Chem. Lab. Ind.

OSTI ID:4055683

Mamiya, M

Japanese) Near infrared absorption spectra of fourteen trivalent lanthanide ions in water-dixane mixture and deuterium oxide solution were studied in the range of 1.4 to 1.8 mu . Of these, praseodymium, samarium, dysprosium, erbium, and thulium have characteristic absorptions of the above ions arising from 4f-4f transition of inner electron shell as in the case visible and ultraviolet absorptions, and any change in the features of their spectra was not found, when the solvent water was replaced by oxide. The molecular extinction coefficients for the above ions were calculated, but sufficientiy accurate values could not be obtained because the bands superposed on that of water contained as crystalline water in the sample salts. It proved to be impossible to exclude water completely even by deuterium substitution. Spectrophotometric data for praseodymium, samarium, dysprosium, erbium, and thulium in deuterium oxide solution were obtained using a Cary model 14 spectrophotometer and are tabulated. All absorption maxima obeyed the Beer's law to a satisfactory degree, indicating that these absorption peaks could be used for analytical purpose as well as other purposes. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-017825
• OSTI ID: 4055683
• Journal Information: Tokyo Kogyo Shikensho Hokoku (Japan) Changed to J. Natl. Chem. Lab. Ind., Journal Name: Tokyo Kogyo Shikensho Hokoku (Japan) Changed to J. Natl. Chem. Lab. Ind. Vol. Vol: 59; ISSN TKSHA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ABSORPTION
BEER LAW
CATIONS
CHEMISTRY
COMPOUNDS
CRYSTALS
DIOXANE
DISTRIBUTION
DYSPROSIUM COMPOUNDS
ELECTRONS
ENERGY LEVELS
ERBIUM COMPOUNDS
ERRORS
FREQUENCY
HEAVY WATER
HETEROCYCLICS
INFRARED RADIATION
ISOTOPE EFFECTS
LIGHT
MEASURED VALUES
MOLECULES
NUMERICALS
OSCILLATIONS
OXYGEN COMPOUNDS
PHOTOMETRY
PRASEODYMIUM COMPOUNDS
QUANTITATIVE ANALYSIS
QUANTITY RATIO
RARE EARTHS
SAMARIUM COMPOUNDS
SOLUTIONS
SOLVENTS
SPECTRA
SPECTROMETERS
SPECTROSCOPY
TABLES
THULIUM COMPOUNDS
ULTRAVIOLET RADIATION
USES
WATER