Determination of phosphorus traces in platinum alloys by two-phase isotope exchange
Description
The method of ZEMAN and KRATZER for the determination of phosphorus traces by means of two-phase isotope exchange was modified for the determination of phosphorus in pure platinum or pure platinum alloys. It was found that Pt, Rh, Ag and As do not interfere with the determination. Among the elements usually present in platinum metal or platinum alloys, only gold interferes. It was removed by extraction from 7M HCl by MIBK and AmOAc. Hydrochloric acid also interferes but it can be removed by evaporation. The analytical procedure is given for the solution obtained by pressure decomposition of the sample (0.5 g) in a steel bomb with PTFE inlay. It is possible to determine > 2 ppm P (approximate error -10%). If using calibration dependence instead of the well known equation for isotope exchange it is not necessary to know the content of P in the standard solution labelled with 32P. (author)
Additional details
Publishing Information
- Journal Title
- J. Radioanal. Chem.
- Journal Volume
- 58
- Journal Issue
- 1-2
- Series
- J. Radioanal. Chem.
- Journal Page Range
- 221-226
- ISSN
- 0134-0719
Conference
- Title
- Second meeting on nuclear analytical procedures.
- Dates
- 19 - 23 Mar 1979.
- Place
- Dresden, German Democratic Republic.
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 12574958
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CALIBRATION STANDARDS; INTERFERING ELEMENTS; ISOTOPIC EXCHANGE; LABELLING; PHOSPHORUS; PHOSPHORUS 32; PLATINUM; PLATINUM ALLOYS; RADIOMETRIC ANALYSIS; SAMPLE PREPARATION; TRACE AMOUNTS
- Descriptors DEC
- ALLOYS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; DAYS LIVING RADIOISOTOPES; ELEMENTS; ISOTOPES; LIGHT NUCLEI; METALS; NONMETALS; NUCLEI; ODD-ODD NUCLEI; PHOSPHORUS ISOTOPES; PLATINUM METALS; QUANTITATIVE CHEMICAL ANALYSIS; RADIOISOTOPES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS
Optional Information
- Notes
- 5 refs.