ISBN: 9786206262169 - toxic element content in commercial yerba mate infusion: evaluation of element content in yerba mate (8 resultados)

Condición: New.

Taschenbuch. Condición: Neu. Toxic element content in commercial yerba mate infusion | Evaluation of element content in yerba mate | Priscilla Dors (u. a.) | Taschenbuch | Englisch | 2023 | Our Knowledge Publishing | EAN 9786206262169 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu. …

Condición: New. Print on Demand.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This work aimed to quantify the contents via acid digestion and soluble in infusion of the essential elements Ca, Mg, N, Cu, Mn and Zn of the toxic elements Al, Cd and Pb in four brands of yerba mate commercialised in the city of Lages-SC. For the total content, nitro-perchloric digestion was used, according to the Manual of Methods of Tissue Analyses used at Embrapa and for the total N content, the sulphuric digestion method was used. For the infusion, 1.5 g of yerba mate was weighed into 10 ml of deionised water, with a contact time of 10 minutes, at temperatures of 70, 80 and 90 °C. The quantification of the elements was performed in ICP-OES. On average, the highest contents obtained for all elements in infusion was at 70 °C. The nutrients Ca, Mg, N, Cu, Mn and Zn were transferred to the mate. The Cd contents in infusion are above the maximum values allowed by legislation for infusions. However, for Pb content, only the M4 brand is above the permitted. 68 pp. Englisch.…

Condición: New. PRINT ON DEMAND.

Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Dors PriscillaForest engineer graduated in 2014 from UDESC/Cav, master in soil science, with a concentration area in Chemistry and mineralogy, PhD student in soil science at the same university and academic of the Chemistry course. S.…

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This work aimed to quantify the contents via acid digestion and soluble in infusion of the essential elements Ca, Mg, N, Cu, Mn and Zn of the toxic elements Al, Cd and Pb in four brands of yerba mate commercialised in the city of Lages-SC. For the total content, nitro-perchloric digestion was used, according to the Manual of Methods of Tissue Analyses used at Embrapa and for the total N content, the sulphuric digestion method was used. For the infusion, 1.5 g of yerba mate was weighed into 10 ml of deionised water, with a contact time of 10 minutes, at temperatures of 70, 80 and 90 °C. The quantification of the elements was performed in ICP-OES. On average, the highest contents obtained for all elements in infusion was at 70 °C. The nutrients Ca, Mg, N, Cu, Mn and Zn were transferred to the mate. The Cd contents in infusion are above the maximum values allowed by legislation for infusions. However, for Pb content, only the M4 brand is above the permitted.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This work aimed to quantify the contents via acid digestion and soluble in infusion of the essential elements Ca, Mg, N, Cu, Mn and Zn of the toxic elements Al, Cd and Pb in four brands of yerba mate commercialised in the city of Lages-SC. For the total content, nitro-perchloric digestion was used, according to the Manual of Methods of Tissue Analyses used at Embrapa and for the total N content, the sulphuric digestion method was used. For the infusion, 1.5 g of yerba mate was weighed into 10 ml of deionised water, with a contact time of 10 minutes, at temperatures of 70, 80 and 90 °C. The quantification of the elements was performed in ICP-OES. On average, the highest contents obtained for all elements in infusion was at 70 °C. The nutrients Ca, Mg, N, Cu, Mn and Zn were transferred to the mate. The Cd contents in infusion are above the maximum values allowed by legislation for infusions. However, for Pb content, only the M4 brand is above the permitted.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 68 pp. Englisch.…