Comparative Analyses of Lead and Copper in Metal-Accumulating Plants with and without Mycorrhizae
| Autor: | Nabanita Dasgupta-Schubert, Omar S. Castillo, Waleed A. Abuhani, C. J. Alvarado, S. L. Bribiesca, S. Alexander, Iii Whelan, S. E. Borjas, L. M. Villaseñor, Sheldon Landsberger |
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| Rok vydání: | 2013 |
| Předmět: |
Ecophysiology
Chemistry Analytical chemistry Fluorescence spectrometry Soil Science Substrate (chemistry) chemistry.chemical_element Copper law.invention Metal Phytoremediation law visual_art Environmental chemistry visual_art.visual_art_medium Neutron activation analysis Atomic absorption spectroscopy Agronomy and Crop Science |
| Zdroj: | Communications in Soil Science and Plant Analysis. 44:3293-3309 |
| ISSN: | 1532-2416 0010-3624 |
| DOI: | 10.1080/00103624.2013.839698 |
| Popis: | Absolute and relative concentrations of heavy metals (HMs) in plant tissue (Cp) and substrate leachate (Cp lix) are required for phytoremediation and ecophysiology. We report the interlaboratory comparison of the absolute and relative Cp and Cp lix for copper (Cu) and lead (Pb) for different soil/substrate HM concentrations (Cs) for Tagetes erecta L.–Glomus intraradices and Aldama dentata using atomic absorption spectrometry, neutron activation analysis, and polarized x-ray fluorescence spectrometry, utilizing standard statistical validation. The intertechnique absolute concentration differences at each Cs were statistically significant with the global average relative deviations being 0.5 ± 0.3 to 1.1 ± 0.9. However, the intertechnique Cp correlations across the Cs, were excellent. Therefore, the relative concentration variation is a robust index, reliably measured by all analytical methods as long as the techniques are applied self-consistently. The absolute concentration exactitudes are discussed with ... |
| Databáze: | OpenAIRE |
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