| Texto completo | |
| Autor(es): |
De Franca, Elvis J.
;
De Nadai Fernandes, Elisabete A.
;
Bacchi, Marcio A.
;
Bode, Peter
;
van Soldt, Rob T. M.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY; v. 282, n. 1, p. 8-pg., 2009-10-01. |
| Resumo | |
For environmental quality assessment, INAA has been applied for determining chemical elements in small (200 mg) and large (200 g) samples of leaves from 200 trees. By applying the Ingamells' constant, the expected percent standard deviation was estimated in 0.9-2.2% for 200 mg samples. Otherwise, for composite samples (200 g), expected standard deviation varied from 0.5 to 10% in spite of analytical uncertainties ranging from 2 to 30%. Results thereby suggested the expression of the degree of representativeness as a source of uncertainty, contributing for increasing of the reliability of environmental studies mainly in the case of composite samples. (AU) | |
| Processo FAPESP: | 03/01075-2 - Espécies arbóreas nativas da Mata Atlântica bioacumuladoras de elementos químicos |
| Beneficiário: | Elvis Joacir de França |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |