RESUMEN
The adsorption behaviors of Cd(II) and Pb(II) on green tea and black tea in aqueous solution as well as the influences of time, acidity and temperature on the adsorption have been studied. It was found that Cd(II) and Pb(II) can been adsorbed strongly by green tea and black tea samples. The adsorption effects depend on the pH strongly when pH<4. The recovery of Pb(II) on tea samples is more than that of Cd(II) when pH<6 and it is opposite when pH>6. It is difficult to elute Cd(II) and Pb(II) from tea samples by water at 25 degrees C.
Asunto(s)
Cadmio/química , Iones/química , Plomo/química , Extractos Vegetales/química , Espectrofotometría Atómica/métodos , Té/química , Adsorción , Camellia sinensis/química , Análisis EspectralRESUMEN
OBJECTIVE: The research on flavonoid in the recent years is extensive, such as Soybeans flavone, Baicalensis flavone, Epimedium flavone. Experiments show the effects of flavonoid is closely related to human health. There are a lot of reports about Ginkcobiobal flavone. In order to make further progress research on ginlcgobiobal flavone, we sum up the articles and reports on ginlcgobiobal flavone in the recent years. METHOD: To searche the articles about ginlcgobiobal flavone studies in the past five years. RESULT: Ginlcgobiobal flavone is not only a vasodilator, but also has the effects of anti-inflammation, analgesia, lowering blood lipids, preventing senile and inhibiting tumor, treating leukaemia, regulating gene and biotransformation. CONCLUSION: Ginlcgobiobal flavone has the potential value for drug research and development.