The use of the neutron activation analysis technique to determine heavy metals in Nicotiana tabacum solanaceae
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2018
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INTERNATIONAL CONFERENCE ON RADIATION AND APPLICATIONS IN VARIOUS FIELDS OF RESEARCH, 6th
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Resumo
Tobacco addiction has been mentioned as a leading cause of preventable illnesses and premature
disability and tobacco smoking is the main cause of lung cancer and one of the factors that most
contribute to the occurrence of heart diseases, among others. The herbaceous species Nicotiana tabacum
is a plant of the solanaceae family used for tobacco production.
Some authors have researched about heavy metals and the toxicity of tobacco. Heavy metals are
frequently found in low concentrations in ground, superficial and underground waters, even though it
does not have environmental anthropogenic contributions. However, with the increase of the industrial
activities and mining and the agrochemical use of contaminated organic and inorganic fertilizers, an
alteration of the geochemical cycle occurs. As a consequence, the natural flow of heavy metals increases
the release of these elements into the biosphere, where they are frequently accumulated in the superior
layer of the ground, accessible to the roots of the plants.
Traces of available heavy metals may be found in surface and subsurface aquatic systems and soils,
even when there is no anthropogenic influence on the environment, and they frequently accumulate in
the upper layer of the soil, where they are accessible to the roots of the plants. Except for the exclusion
species, most plant species that grow on soil contaminated by heavy metals cannot avoid the absorption
of these elements, but only limit their translocation.
During planting and plant development, fertilizers and insecticides, including organochlorines and
organophosphates, are used and the smoke from cigarette smoking presents various toxic substances,
including heavy metals such as Chromium (Cr) and Manganese (Mn).
The samples preparation procedures were carried out in our laboratories and submitted to the
irradiation with thermal neutrons in the IPEN/CNEN-SP, in the IEA-R1 research reactor. The
irradiated material was analyzed by gamma spectrometry using a high purity germanium detector
(HPGe).
Como referenciar
MADI FILHO, TUFIC; FERREIRA, ELSON B.; PEREIRA, MARIA da C.C.; BERRETTA, JOSE R. The use of the neutron activation analysis technique to determine heavy metals in Nicotiana tabacum solanaceae. In: INTERNATIONAL CONFERENCE ON RADIATION AND APPLICATIONS IN VARIOUS FIELDS OF RESEARCH, 6th, June 18-22, 2018, Ohrid, Macedonia. Abstract... Niš, Serbia: RAD Association, 2018. p. 348-348. Disponível em: http://repositorio.ipen.br/handle/123456789/31307. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.