Determination of gold and arsenic in Indian tobacco leaves
Creators
- 1. Saha Inst. of Nuclear Physics, Calcutta (India). Nuclear Chemistry Divison
Description
Two varieties of Indian Tobacco leaves have been analysed for gold and arsenic by neutron activation (76As, 198Au). Nicotiana rustica variety from North Bengal was found to contain 3.7x10-1ppm of gold and 4.0x10-3ppm of arsenic and the nicotiana tabaccum variety from Andhra Pradesh contains 1.26x10-1ppm of gold and 5.1x10-3ppm of arsenic, respectively. Unlike those in other countries Indian tobacco leaves seem to be enriched in the gold content and depleted in the arsenic content. The soil of North Bengal is richer in gold than the soil of Andhra Pradesh which requires further investigation, and the amount of arsenic in both soils is physiologically insignificant. Irradiation of leaf samples was done in a CIRUS reactor at a neutron flux of 1013n cm-2s-1 for seven days. (F.G.)
Additional details
Publishing Information
- Journal Title
- Radiochem. Radioanal. Lett.
- Journal Volume
- 23
- Journal Issue
- 1
- Series
- Radiochem. Radioanal. Lett.
- Journal Page Range
- 43-48
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 7257139
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACTIVATION ANALYSIS; ARSENIC; ARSENIC 76; DATA; GOLD; GOLD 198; INDIA; NEUTRON REACTIONS; NICOTIANA; QUANTITATIVE CHEMICAL ANALYSIS
- Descriptors DEC
- ARSENIC ISOTOPES; ASIA; BARYON REACTIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; DAYS LIVING RADIOISOTOPES; DEVELOPING COUNTRIES; ELEMENTS; GOLD ISOTOPES; HADRON REACTIONS; HEAVY NUCLEI; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; METALS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-ODD NUCLEI; PLANTS; RADIOISOTOPES; SEMIMETALS; TRANSITION ELEMENTS
Optional Information
- Notes
- 1 fig.; 5 refs.; 1 table.