枸杞中维生素C含量的测定及条件探讨  

Determination of Vitamin C Content in Wolfberries and Exploration of Conditions

作　　者：田友华 代秀霞 张娜娜 司念 田志美 Tian Youhua;Dai Xiuxia;Zhang Nana;Si Nian;Tian Zhimei(Weifang High tech Industrial Development Zone Beihai School,Weifang 261505,China;Weifang Hansheng School,Weifang 261041,China;School of Chemistry and Materials Engineering,Fuyang Normal University,Fuyang 236041,China)

机构地区：[1]潍坊高新技术产业开发区北海学校,山东潍坊261505 [2]潍坊瀚声学校,山东潍坊261041 [3]阜阳师范大学化学与材料工程学院,安徽阜阳236041

出　　处：《山东化工》2024年第16期137-139,共3页Shandong Chemical Industry

基　　金：阜阳师范大学科学研究项目(2022FSKJ07ZD);2022年度高等学校省级质量工程项目(2022jyxm1153);大学生创新创业训练计划项目(S202310371118,S202310371049)。

摘　　要：采用2,4-二硝基苯肼法测定了几种枸杞中维生素C含量,并探究了影响实验结果的要素。通过测量维生素C标准溶液制作的标准曲线的线性回归方程为y=0.012x+0.0544,R^(2)=0.9937。样品的回收率介于93%~102%之间。实验表明,二硝基苯肼法可准确测量枸杞中的维生素C,采取2,4-二硝采取2,4-二硝基苯肼法更为适合本文中的实验,满足对枸杞中维生素C含量的测定。This article uses the 2,4-dinitrophenylhydrazine method to determine the content of vitamin C in several wolfberries,and explores the factors that affect the experimental results.The linear regression equation for the standard curve made by measuring vitamin C standard solution is y=0.012x+0.0544,R^(2)=0.9937.The recovery rate of the sample ranges from 93%to 102%.The experiment shows that the dinitrophenylhydrazine method can accurately measure vitamin C in wolfberries,and the 2,4-dinitrophenylhydrazine method is suitable for the experiment in this article,which meets the determination of vitamin C content in wolfberries.

关 键 词：枸杞 维生素C 2 4-二硝基苯肼 回收率 影响要素 

分 类 号：O657.3[理学—分析化学]