|
|||||
|
|
Surface contamination effects on leaf chemical composition in the Atlantic Forest |
|
| Authors: | A. A. Ferrari E. J. França E. A. N. Fernandes M. A. Bacchi |
| Affiliation: | 31101. Centro de Energia Nuclear na Agricultura, Universidade de S?o Paulo, PO Box 96, 13400-970 Piracicaba SP, Brazil 31102. Centro de Energia Nuclear na Agricultura, Universidade de S?o Paulo, PO Box 96, 13400-970 Piracicaba SP, Brazil 31103. Centro de Energia Nuclear na Agricultura, Universidade de S?o Paulo, PO Box 96, 13400-970 Piracicaba SP, Brazil 31104. Centro de Energia Nuclear na Agricultura, Universidade de S?o Paulo, PO Box 96, 13400-970 Piracicaba SP, Brazil |
| Abstract: | Summary The exogenous material that adheres to the leaf surface affects the elemental composition of the plant itself, thereby constituting one of the major error sources in plant analysis. The present work investigated the surface contamination of leaves from the Atlantic Forest. Instrumental neutron activation analysis (INAA) was applied to assess the efficiency of leaf EDTA-washing. Chemical element concentrations were corrected using Sc (soil tracer) since resuspended soil is the main source of contamination in leaves. As a result, EDTA-washing should be used mainly for the evaluation of terrigenous elements, while the Sc-corrected concentrations are considered satisfactory for the other elements. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |