赖氨酸-Ag反应机理的研究  

Study on Interaction of Silver(Ⅰ) Ion with Lysine

作　　者：肖子丹[1] 张朝平[1] 

机构地区：[1]贵州大学化学与生物化学学院化学系,贵阳550025

出　　处：《无机化学学报》2004年第8期915-919,共5页Chinese Journal of Inorganic Chemistry

摘　　要：The interaction of silver? ion with lysine has been investigated by UV?鄄Vis, fluorescent spectra and electrophoresis method. The effect of pH medium and multicomponent concentration on interaction of lysine-silver has also been studied. Lysine-silver system showed maximum absorbance at 239 nm and 448 nm. Lysine showed fluorescence. The fluorescence excitation wavelength was about 356.6 nm (fluorescence emission wavelength was about 438.6 nm). When the reaction of silver? ion with lysine happened, fluorescence was quenching. Lysine-silver system carried negative charge, and the electrokinetic potential of double electrode layer was -2.35×10-4 V.The interaction of silver? ion with lysine has been investigated by UV?鄄Vis, fluorescent spectra and electrophoresis method. The effect of pH medium and multicomponent concentration on interaction of lysine-silver has also been studied. Lysine-silver system showed maximum absorbance at 239 nm and 448 nm. Lysine showed fluorescence. The fluorescence excitation wavelength was about 356.6 nm (fluorescence emission wavelength was about 438.6 nm). When the reaction of silver? ion with lysine happened, fluorescence was quenching. Lysine-silver system carried negative charge, and the electrokinetic potential of double electrode layer was -2.35×10-4 V.

关 键 词：赖氨酸 银离子 反应机理 反应条件 PH电位滴定法 稳定常数 荧光光谱 

分 类 号：Q517[生物学—生物化学]