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Catalytic determination of cobalt by flow injection spectrophotometry: application in animal faeces analysis using hydrochloric acid as extracting solution
(Elsevier Science BvAmsterdamHolanda, 1998)
Effect of Cd(II) on the ripening of ferrihydrite in alkaline media
(Clay Minerals Society, 2012-04)
To acquire a better understanding of the influence exerted by the presence of Cd + during the process of transforming ferrihydrite to goethite, the morphological and structural changes of several samples obtained by the ...
Efeito de parâmetros analíticos sobre a precisão de métodos de extração de zinco do solo
(1997-01-01)
Fifteen soil samples and four extradants (DTPA, Na 2EDTA, HCl and Mehlich 1) were used to study soil extraction methods for available zinc. Each extradant was studied in three soil:solution ratios (1:2, 1:4 and 1:10) and ...
Efeito de parâmetros analíticos sobre a precisão de métodos de extração de zinco do solo
(1997-01-01)
Fifteen soil samples and four extradants (DTPA, Na 2EDTA, HCl and Mehlich 1) were used to study soil extraction methods for available zinc. Each extradant was studied in three soil:solution ratios (1:2, 1:4 and 1:10) and ...
Copper and zinc quantification in contaminated soil as evaluated by chemical extractants
(São Paulo - Escola Superior de Agricultura Luiz de Queiroz, 2008)
Trace elements are potentially toxic to the environment. Their toxicity in soils relies on their type of chemical associations. Hence it is important to determine the chemical form they occur in the soils in order to assess ...
Assessment of micronutrient extractants from soils of Paraná, Brazil
(Sociedade Brasileira de Ciência do Solo, 2011-11-01)
In Brazil, plant-available micronutrients in the soil can be determined by several chemical extractants, the most common of which are dilute acid and chelating solutions. The purpose of this study was to assess the extractants ...
Assessment of micronutrient extractants from soils of Paraná, Brazil
(Sociedade Brasileira de Ciência do Solo, 2011-11-01)
In Brazil, plant-available micronutrients in the soil can be determined by several chemical extractants, the most common of which are dilute acid and chelating solutions. The purpose of this study was to assess the extractants ...
CO2 sequestration by pH-swing mineral carbonation based on HCl/NH4OH system using iron-rich lizardite 1T
(2018-03-01)
In pH-swing mineral carbonation, several acid/base systems has been investigated. Currently the main acid/base systems employed are HCl/NaOH and NH4HSO4/NH4OH. However, the use of a HCl/NH4OH system was not yet elucidated. ...