The determination of 125I and 129I using an intrinsic-germanium detector for X-ray spectroscopy
- 1. New York State Dept. of Health, Albany (USA)
Description
An analytical method for the determination of 125I and 129I in environmental samples is described. Samples are treated to convert all iodine to a common oxidation state prior to chemical separation and purification. The iodine is reduced to I2; then the elemental iodine is extracted into CCl4, back extracted into water and precipitated as PdI2. The chemical recovery is determined gravimetrically. The PdI2 precipitate is counted on an intrinsic-germanium detector, and the intensities of the Ksub(α) x-rays from 125I and 129I are measured. A matrix solution is used to correct for the interference of one spectral region to the other. If 131I is present, as indicated by an independent measurement, a correction for 131I interference is also made. (author)
Additional details
Identifiers
Publishing Information
- Journal Title
- Health Physics
- Journal Volume
- 29
- Journal Issue
- 5
- Series
- Health Phys.
- Journal Page Range
- 753-760
- ISSN
- 0017-9078
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 7223159
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- GERMANIUM DIODES; IMPURITIES; IODINE 125; IODINE 129; IODINE 131; OXIDATION; PURIFICATION; QUANTITATIVE CHEMICAL ANALYSIS; SAMPLE PREPARATION; SEPARATION PROCESSES; X-RAY SPECTROSCOPY
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; IODINE ISOTOPES; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES; SPECTROSCOPY; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
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