花青素在光度法测定Fe^(3+)中的应用  

Application of Anthocyanin in Spectrophotometric Method Determination of Fe^(3+)

作　　者：夏雁青[1] 李卫宾 

机构地区：[1]枣庄学院化学化工与材料科学学院,山东枣庄277160 [2]山东公信安全科技有限公司,山东枣庄277100

出　　处：《山东化工》2017年第11期91-92,共2页Shandong Chemical Industry

摘　　要：利用从紫甘蓝中提取的花青素与Fe^(3+)发生络合反应,建立了一种分光光度法定量测定Fe^(3+)的新方法。在pH值4.0的乙酸-乙酸钠缓冲溶液中花青素与Fe^(3+)发生络合反应,当Fe^(3+)浓度在0.1~1.0 mg/10 m L范围内时,与吸光度呈良好的线性关系,相关系数R2=0.9984,线性方程为A=0.2462C+0.4985,该方法灵敏度高、反应迅速、重现性好。Comlexation reaction occurred between anthocyanin extracted from purple cabbage and Fe3＋. A new method of the quantitative determination of Fe3 ＋ was developed in acetic - sodium acetate buffer at pH 4.0. A good linear relationship between the absorbance and the concentration of Fe3 ＋ in the range of 0.1 - 1.0mg/lOmL was obtained with the correlation coefficient of R2 = 0. 9984. The linear equation was A = 0.2462C ＋ 0.4985. This is a method of high sensitivity, fast reaction rate and good reproducibility.

关 键 词：花青素 分光光度法 FE3+ 

分 类 号：O657.3[理学—分析化学]