Radioactive Study of Malagasy medicinal plants and essential oil by gamma spectrometry
Description
Medicinal plants and essential oil derived from environmental samples such as plants, flowers, bushes or wild trees. Then, it is normal that naturally occuring radionuclides from Thorium and Uranium series on the one hand, K-40, a primordial radionuclide and common for all the samples on the other hand have been identified in such samples. Their activity are very low as it was expected to be, and Pb-210, one of the most radiotoxic among all natural radionuclides was not detected. Particularly, for essential oil, only the light radionuclide K-40 remains in the obtained oil, it is estimated that heavy metals such as Pb-212, identified in plants could not follow the vapour phase during the distillation process. However, detected counts per second of K-40 decrease from plants to oil which are then non-radioactive
Availability note (English)
Available from Madagascar INSTN, B.P. 4279 Antananarivo (Madagascar)Abstract (French)
Derivees d'echantillons environementaux comme les plantes, les fleurs, les buissons ou les arbres sauvages, les plantes medicinales et les huilles essentielles de Madagascar renferment principalement d'une part les radionucleides naturels de la serie du Thorium et de l'Uranium et d'autre part, du K-40, radionucleide primordial qui a ete detecte dans tous les echantillons. Leurs activites sont effectivement tres faibles, et le Pb-110, un des nucleides les plus radiotoxiques de tous les radionucleides naturels n'a pas ete detecte. Particulierement, pour les huiles essentielles, seul le K-40, radionucleide leger est identifie dans l'huile, on a alors estime que les metaux lourds comme le Pb-212, identifies dans les plantes ne pouvaient pas suivre la phase de vapeur lors de la distillation. Cependant, les taux de comptages du K-40 diminuent des plantes aux huiles qui, ainsi, ne sont pas radioactivesAdditional details
Additional titles
- Original title (French)
- Etude de la radioactivite des plantes medicinales et huiles essentielles de Madagascar par spectrometrie gamma
Publishing Information
- Publisher
- Madagascar INSTN
- Imprint Place
- Antananarivo (Madagascar)
- Imprint Pagination
- [100 p.]
INIS
- Country of Publication
- Madagascar
- Country of Input or Organization
- Madagascar
- INIS RN
- 41069220
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Resource subtype / Literary indicator
- Thesis, Non-conventional Literature
- Descriptors DEI
- ACTIVITY LEVELS; ESSENTIAL OILS; GAMMA SPECTROSCOPY; MEDICINAL PLANTS; RADIOISOTOPES
- Descriptors DEC
- ISOTOPES; OILS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PLANTS; SPECTROSCOPY
Optional Information
- Notes
- 14 refs.
- Funding organization
- Madagascar INSTN, Antananarivo (Madagascar)