Raman measurements of tributyl phosphate after adsorption on silver hydrosols
Mixtures of silver hydrosols and tributyl phosphate saturated diluted nitric acid exhibit an intense Stokes-Raman spectrum between 600 cm/sup -1/ and 1700 cm/sup -1/ which is possibly attributable to surface-enhanced Raman scattering but whose bands, however, cannot be assigned to tributyl phosphate. The observed effect which grows with increasing wavelength of the exciting light (Ar/sup +/ laser) depends on the acid concentration and attains a maximum for 1 M HNO/sub 3/, whereas in weakly acidic and neutral solutions it cannot be detected. Tributyl phosphate in diluted HClO/sub 4/ and H/sub 2/SO/sub 4/ gives the same spectrum. As the silver sol is rapidly destroyed by the acids the Raman bands can be observed for only about 1-3 h. No linear relationship between the Raman signal the tributyl phosphate concentration allowing quantitative work could be obtained which is possibly due to the strong instability of the hydrosol in the presence of acids. 13 references, 9 figures, 1 table.
- Research Organization:
- Institut fuer Radiochemie, Karlsruhe, West Germany
- OSTI ID:
- 5378921
- Journal Information:
- Anal. Chem.; (United States), Vol. 57:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
SILVER COMPOUNDS
SORPTIVE PROPERTIES
TBP
ADSORPTION
RAMAN SPECTROSCOPY
EXPERIMENTAL DATA
NITRIC ACID
PH VALUE
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
RAMAN SPECTRA
SOLS
BUTYL PHOSPHATES
CHEMICAL ANALYSIS
COLLOIDS
DATA
DISPERSIONS
ESTERS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
LASER SPECTROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHOSPHORIC ACID ESTERS
SORPTION
SPECTRA
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
400104* - Spectral Procedures- (-1987)
050800 - Nuclear Fuels- Spent Fuels Reprocessing