PHOTOMETRIC DETERMINATION OF MICRO-QUANTITIES OF THORIUM (in Russian)
Journal Article
·
· Zhur. Anal. Khim.
OSTI ID:4232993
Optimum conditions have been found for the photometric determination of thoriurm with Thoron using a photocolorimeter. A method has been developed for separating microgram quantities of thorium from uranium, iron, and other interfering elements by thorium precipitation with calcium oxalate from a weakly acid medium. A method for the determination of thorium in the presence of cerium and lanthanum has been suggested based on the different absorption of colored complexes of these elements with thoron depending on the acidity of the solution. The mean absolute error of the determination of 1-10 mu g of thorium is plus or minus 0.3 mu g. The maximum absolute error does not exceed plus or minus 0.5 mu g. (auth)
- Research Organization:
- V.G. Khlopin Inst. of Radium, Academy of Sciences, Leningrad
- NSA Number:
- NSA-13-017910
- OSTI ID:
- 4232993
- Journal Information:
- Zhur. Anal. Khim., Journal Name: Zhur. Anal. Khim. Vol. Vol: 14
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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