Elemental composition of Brazilian rice grains from different cultivars and origins
| Autor: | Lilian Seiko Kato, Márcio Arruda Bacchi, Elisabete Aparecida de Nadai Fernandes, Gabriel Adrián Sarríes |
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| Rok vydání: | 2018 |
| Předmět: |
Detection limit
Elemental composition Chemistry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Analytical chemistry 010501 environmental sciences 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry Nuclear Energy and Engineering VARIEDADES VEGETAIS Principal component analysis Cluster (physics) Geographic regions Radiology Nuclear Medicine and imaging Cultivar Neutron activation analysis Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | Neutron activation analysis (NAA) was used for determining chemical elements in rice grains of four different cultivars (IRGA424, IRGA424 RI, Guri Inta, Puita Inta) produced in four geographic regions of Rio Grande do Sul state, Brazil. Considering toxic elements, As varied from 0.027 to 0.646 mg/kg, while Cd was always lower than the detection limit of 0.25 mg/kg. Applying principal component and cluster analysis, As, Br, Co, Cs, Na, Rb and Zn presented potential to be used to distinguish rice grains from different regions, while no discrimination was obtained amongst cultivars. |
| Databáze: | OpenAIRE |
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