槲皮素与铬(Ⅲ)配合物合成及光谱分析  

Quercetin and Chromium (Ⅲ) Complexes Synthesis and Spectral Analysis

作　　者：雷克林[1] 

机构地区：[1]襄樊学院化学工程与食品科学学院,湖北襄樊441053

出　　处：《襄樊学院学报》2010年第8期24-28,共5页Journal of Xiangfan University

摘　　要：利用槲皮素与铬盐在无水乙醇中回流加热,用三乙醇胺调节PH至中性得到产物.合成配合物用红外光谱、紫外光谱对其结构进行表征,推测出螯合位置发生在槲皮素3-羟基与4-羰基及3',4'-羟基处.并采用TU—1900双光束紫外可见分光光度计研究一系列不同浓度溶液的吸光度,通过摩尔比法确定Cr3+与槲皮素的配位比为1:1和2:1.In this paper,the quercetin and chromium salts were refluxed in anhydrous ethanol to be precipitated,with pH neutral adjusted with triethanolamine.Using infrared spectroscopy,ultraviolet spectroscopy to characterize the structure of the synthesized complex,it shows that the chelating position was in quercetin 3-hydroxyd and 4-carbonyl and 3＇,4＇-hydroxy department.And then with TU-1900 double beam UV-Vis spectrophotometer,absorbance of the solution with different concentration were measured,and the molar ratio of Cr3＋ and quercetin determined,which was 1：1 and 2：1.

关 键 词：槲皮素 铬 配位比 

分 类 号：O657.15[理学—分析化学]