|
KMID : 0370220090530050235
|
|
Yakhak Hoeji
2009 Volume.53 No. 5 p.235 ~ p.240
|
|
|
Optimum Concentration of the Cd(II)-Quercetin Complexation Reaction
|
|
Lee Jeong-Ho
Shin Sun-Woo
Baek Seung-Hwa
|
|
|
Abstract
|
|
|
|
The interaction of cadmium (II) ion with quercetin was investigated in aqueous solution at different pH. The quercetin/cadmium stochiometries for cadmium (II) binding have been determined by UV-vis spectrophotometric method. The complexation of Cd(II) ion with 54.72 킡 quercetin (A = 1.00793) was formed in 0.2 M NH3-0.2 M NH4Cl (pH 8.0) buffer solution. 1 : 1 Cd(II)-complex had a maximum absorbance and showed the bathochromic shift of the long-wavelength band of the UV-vis spectra in the alkaline pH when interacted with quercetin in buffer solution. These results suggest that Cd(II)-quercetin complex has the optimal condition of chelation in basic buffer solution.
|
|
|
KEYWORD
|
|
|
quercetin, bathochromic shift, Cd(II)-complex, UV-vis spectrophotometric method
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|