Quercetin과 (+)-Catechin의 카드뮴(II)에 대한 착물반응

• 영문명: Complexation Studies for Cadmium (II) with Quercetin and (+)-Catechin
• 발행기관: 대한약학회
• 저자명: 이정호(Jeong Ho Lee) 신선우(Sun Woo Shin) 백승화(Seung Hwa Baek)
• 간행물 정보: 『약학회지』제53권 제6호 (2009년), 342~350쪽, 전체 9쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2009.12.31

영문 초록

The interaction of cadmium (II) ion with quercetin and (+)-catechin was investigated in aqueous solution at various pH. The flavonoid/cadmium stochiometries for cadmium (II) binding to quercetin and (+)-catechin have been determined by UV-vis spectroscopy. 1 : 1 Cd (II)-Flavonoid complex had a maximum absorbance and showed the bathochromic shift of the long-wavelength band of the UV-vis spectra in the alkaline pH, that occurs upon complexation, due to a ligandto-metal charge transfer. These results suggest that Cd (II)-flavonoid complex has the optimal condition of chelation in 0.2 M NH3 - 0.2 M NH4Cl (pH 8.0) solution.

키워드

quercetin (+)-catechin bathochromic shift Cd (Ⅱ)-flavonoid complex ligand-to-metal charge transfer UV-vis spectroscopy