摘要
[目的]从大枣中提取大枣多糖,然后与铁(Ⅲ)合成大枣多糖铁配合物(JPC),建立JPC中铁含量的测定方法。[方法]采用热水浸泡法提取大枣多糖;在碱性条件下,大枣多糖水溶液与三氯化铁反应合成JPC;采用邻菲罗啉分光光度法和原子吸收光谱法测定JPC中铁(Ⅲ)的含量。[结果]JPC是深棕红色无定型粉末,JPC中铁(Ⅲ)的含量:邻菲罗啉分光光度法测定结果为19.76%,原子吸收光谱法测定结果为20.37%。[结论]邻菲罗啉分光光度法和原子吸收光谱法的测定结果基本一致。
[Objective]To prepare jujube polysaccharide-iron（Ⅲ） complex（JPC） by the synthesis of polysaccharide extracted from jujube and FeCl3,and construct a method for determining the Fe content in JPC.[Method]The polysaccharide was extracted from jujube by hot water immersion method,and then synthesized with FeCl3 to produce JPC under alkaline condition;at last the Fe（Ⅲ） content in JPC was detected by phenanthroline spectrophotometry and atomic absorption spectrophometry.[Result]JPC was heavy brownish red and shapeless powder.The content of Fe（Ⅲ） in JPC was 19.76% detected by phenanthroline spectrophotometry and 20.37% detected by atomic absorption spectrophometry.[Conclusion]The results detected by these two methods were basically consistent.
出处
《安徽农业科学》
CAS
北大核心
2011年第15期9112-9114,共3页
Journal of Anhui Agricultural Sciences
关键词
大枣多糖
大枣多糖铁配合物
合成
铁含量
测定
Jujube polysaccharide
Jujube polysaccharide-iron（Ⅲ） complex
Synthesis
Determination of Fe content
