Determination of 129I in environmental water using tandem accelerator mass spectrometry
- 1. China Inst. of Atomic Energy, Beijing (China)
Description
The author describes a method for determining 12'9I in large volume environmental water and its application. 129I in a sample of volume greater than 100 L was absorbed on anion exchange resin (201 x 7 Cl-) and 129I absorbed on the resin was eluted by 8% NaClO by stirring, extracted with CCl4 and backwash extracted with water. A AgI source was prepared by precipitation and 129I was determined with a accelerator mass spectrometry (AMS). The chemical recovery of this method is above 60%. The minimum detectable limit for 129I is 2 x 10-10 Bq/L. It sensitivity is increased by 104∼105 times over that of neutron activation analysis method. 129I in environmental water in some regions of China was determined for the first time by authors using this method, and the satisfactory results were got. It shows that this method is quite sensitive, simple and prompt. It can be used for various kind of water samples
Additional details
Publishing Information
- Journal Title
- Radiation Protection (Taiyuan)
- Journal Volume
- 18
- Journal Issue
- 2
- Journal Page Range
- p. 82-88
- ISSN
- 1000-8187
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 29044307
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ADSORPTION; CARBON TETRACHLORIDE; CHLORATES; DESORPTION; ENVIRONMENTAL MATERIALS; IODINE 129; MASS SPECTROSCOPY; ORGANIC ION EXCHANGERS; PRECIPITATION; RADIATION SOURCES; SILVER IODIDES; SILVER NITRATES; SODIUM COMPOUNDS; SOLVENT EXTRACTION; TANDEM ELECTROSTATIC ACCELERATORS; WATER
- Descriptors DEC
- ACCELERATORS; ALKALI METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHLORINATED ALIPHATIC HYDROCARBONS; CHLORINE COMPOUNDS; ELECTROSTATIC ACCELERATORS; EXTRACTION; HALIDES; HALOGEN COMPOUNDS; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IODIDES; IODINE COMPOUNDS; IODINE ISOTOPES; ION EXCHANGE MATERIALS; ISOTOPES; MATERIALS; NITRATES; NITROGEN COMPOUNDS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; OXYGEN COMPOUNDS; RADIOISOTOPES; SEPARATION PROCESSES; SILVER COMPOUNDS; SORPTION; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS; YEARS LIVING RADIOISOTOPES