Published November 1994
| Version v1
Journal article
Substoichiometric isotope dilution analysis of arsenic in biological and environmental standard reference materials by solvent extraction using toluene-3,4-dithiol in benzene
- 1. Nagpur Univ. (India). Dept. of Chemistry
Description
A radiochemical solvent extraction procedure has been developed for the determination of As(III) using 76As tracer. It is based on the complexation of As(III) with toluene-3,4-dithiol (TDT) at pH 2 and subsequent extraction in benzene. The effect of various parameters such as pH, time of equilibration, nature of solvent, quantitative character and interferences have been studied. The method has been further developed into substoichiometric isotope dilution analysis for the determination of As at < 1μg level and employed for the analysis of several environmental and biological standard Reference Materials from NIST (USA), IAEA (Vienna) and NIES (Japan). (author) 39 refs.; 4 figs.; 4 tabs
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 185
- Journal Issue
- 1
- Journal Page Range
- p. 145-156.
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 26028113
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ARSENIC COMPLEXES; ARSENIC 76; BENZENE; CALIBRATION STANDARDS; DITHIOLS; ISOTOPE DILUTION; SOLVENT EXTRACTION; SUBSTOICHIOMETRY; TOLUENE
- Descriptors DEC
- ALKYLATED AROMATICS; AROMATICS; ARSENIC ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; COMPLEXES; DAYS LIVING RADIOISOTOPES; EXTRACTION; HYDROCARBONS; INTERMEDIATE MASS NUCLEI; ISOTOPE APPLICATIONS; ISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; RADIOISOTOPES; REAGENTS; SEPARATION PROCESSES; STANDARDS; THIOLS; TRACER TECHNIQUES