10 research outputs found
Selective recovery of tropane alkaloids applying liquid membrane technique
Get PDFA tropine recovery from its solutions applying a liquid membrane technique was studied. Among several studied organic solvents, chloroform showed best extraction ability towards atropine. Pertraction studies were carried out in a laboratory bulk liquid membrane contactor with agitation of all three phases. Both, aqueous solutions of pure atropine and extract of Atropa Belladonna L. roots were used as feed solutions, as well as chloroform and diluted sulphuric acid as a liquid membrane and a stripping liquor, respectively. The effect of phase agitation on alkaloid pertraction was studied for the cases when pure atropine solutions were used as feed phase. A pertraction process carried out with native liquid extracts from A. Belladonna provided selective alkaloid recovery and its concentration in the acceptor solutio
Assessment of trace metals and porphyrins in excreta of Humboldt penguins (Spheniscus humboldti) in different locations of the northern coast of Chile
No full textMercury accumulation in gentoo penguins Pygoscelis papua: spatial, temporal and sexual intraspecific variations
No full textSoil features in rookeries of Antarctic penguins reveal sea to land biotransport of chemical pollutants
No full textMercury and other metals in eggs and feathers of glaucous-winged gulls (Larus glaucescens) in the Aleutians
No full textModified Natural Clinoptilolite Detoxifies Small Mammal’s Organism Loaded with Lead II: Genetic, Cell, and Physiological Effects
No full textModified Natural Clinoptilolite Detoxifies Small Mammal’s Organism Loaded with Lead I. Lead Disposition and Kinetic Model for Lead Bioaccumulation
No full textEvaluation of chromium accumulation and resulting histopathological changes in Libyan jirds (Mammals, Rodentia), affected by effluent from Ghazghan leather industrial town, Iran
No full text
