Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/34004
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Title

Effects of different drying processes on the concentrations of metals and metalloids in plant materials.

AuthorsAnawar, Hossain M.; Canha, N.; Freitas, M. C.; Santa Regina, Ignacio CSIC ORCID ; García Sánchez, Antonio CSIC
KeywordsNeutron activation analysis
Drying processes
Plant biomass
Metals and metalloids concentration
Dehydration
Issue Date2011
PublisherSpringer
CitationJournal of Radioanalytical and Nuclear Chemistry. Acepted March 2011
AbstractThe drying process of fresh plant materials may affect the porous structure, dehydration and a number of quality characteristics of these materials. Therefore, this study has investigated the effect of different drying processes on the variation of metal and metalloid concentrations in the dried plant materials. Seven varieties of native plant species collected from Sa˜o Domingos mine were analyzed by instrumental neutron activation analysis(INAA) to investigate the effects of freeze-drying (FD),ambient air-drying (AAD) and oven-drying (OD) process on the concentrations of metals and metalloids in the plant biomass. Comparison of ambient air-dried, oven-dried and freeze-dried preparations allows a phenomenological description of the dehydration artefacts. In the quantitative analysis of metals and metalloids, FD and OD plant samples show the higher concentrations of metals and metalloids when compared to those in the AAD plant biomass. The freeze-drying process is comparatively reliable for determination of metals and metalloids concentrations in plant materials.
Description6 p.
Publisher version (URL)http://www.springerlink.com/content/105692/
URI10261/34004
DOI10.1007/s10967-011-1051-9
ISSN0236-5731
Appears in Collections:(IRNASA) Artículos




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