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Flow injection photometric determination of zinc and copper with zincon based on the variation of the stability of the complexes with pH
(ROYAL SOC CHEMISTRY, 1997-10)
A flow injection photometric method for the sequential determination of zinc and copper in mixtures was developed based on the variation of the stability of the chromogenic complexes between the analytes and the reagent ...
Testing extractants for Cu, Fe, Mn, and Zn in tropical soils treated with sewage sludge for 13 consecutive years
(2013-04-16)
In this paper, we report on a field experiment being carried out in a Typic Eutrorthox. The experiment was initiated in the 1997-98 agricultural season as a randomized block design with four treatments (0, 5, 10, and 20 t ...
Testing extractants for Cu, Fe, Mn, and Zn in tropical soils treated with sewage sludge for 13 consecutive years
(2013-04-16)
In this paper, we report on a field experiment being carried out in a Typic Eutrorthox. The experiment was initiated in the 1997-98 agricultural season as a randomized block design with four treatments (0, 5, 10, and 20 t ...
Two isomorphous transition metal complexes displaying a coordinated tetrathionate unit: Bis(4,4′-dimethyl-2,2′-bipyridine- κ2 N,N′)(tetrathionato-κ2 S,S′)cadmium(II) dimethylformamide disolvate and the zinc(II) analogue
(Wiley Blackwell Publishing, Inc, 2013-07)
The isomorphous title compounds, [Tr(S4O6)(C 12H12N2)2]·2C 3H7NO (Tr = CdII and ZnII), consist of metal centres to which one tetrathionate and two 4,4′-dimethyl-2, 2′-bipyridine chelating ligands bind. The structures are ...
Removal of metal ions from aqueous solution by chelating polymeric hydrogel
(SPRINGER HEIDELBERG, 2010)
Polysaccharide natural seed coat from the tree Magonia pubescens, in the form of hydrogel was used to remove metals in aqueous solution. Swelling tests indicate that seed coat presents hydrogel behavior, with maximum water ...
Removal of metal ions from aqueous solution by chelating polymeric hydrogel
(Springer Heidelberg, 2010-12-01)
Polysaccharide natural seed coat from the tree Magonia pubescens, in the form of hydrogel was used to remove metals in aqueous solution. Swelling tests indicate that seed coat presents hydrogel behavior, with maximum water ...
Removal of metal ions from aqueous solution by chelating polymeric hydrogel
(Springer Heidelberg, 2010-12-01)
Polysaccharide natural seed coat from the tree Magonia pubescens, in the form of hydrogel was used to remove metals in aqueous solution. Swelling tests indicate that seed coat presents hydrogel behavior, with maximum water ...
Different trace mineral sources and recommendations in the performance and quality of eggs from Dekalb White layers
(Brazilian Journal of Animal Science, 2023)