| 青椒中还原型维生素C含量的测定 |
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| 引用本文： | 马占玲,马占彪,夏云生,陈阳.青椒中还原型维生素C含量的测定[J].渤海大学学报(自然科学版),2006,27(2):111-113. |
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| 作者姓名： | 马占玲 马占彪 夏云生 陈阳 |
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| 作者单位： | 1. 渤海大学,化学化工学院,辽宁,锦州,121013
2. 锦州石化公司,辽宁,锦州,121001 |
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| 摘 要： | 主要介绍了钼蓝比色法测定青椒中还原型维生素C含量的基本原理和方法。井对最大吸收波长和最佳显色条件进行了探究，实验结果是在波长839nm处有强吸收，维生素c含量在0．004-0．024mg／mL范围内呈线性关系，方法的变异系数小于2．51％，回收率为97．2％。该方法简单、快速、准确，用此法测得市售青椒样品中的还原型维生素c的含量为0．2390mg／g。
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| 关 键 词： | 分光光度法 维生素C 青椒 |
| 文章编号： | 1673-0569(2006)02-0111-03 |
| 收稿时间： | 03 8 2006 12:00AM |
| 修稿时间： | 2006年3月8日 |
Determination of content of reduction-type vitamin C in green pepper |
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| MA Zhan-ling,MA Zhan-biao,XIA Yun-sheng,CHEN Yang.Determination of content of reduction-type vitamin C in green pepper[J].Journal of Bohai University:Natural Science Edition,2006,27(2):111-113. |
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| Authors: | MA Zhan-ling MA Zhan-biao XIA Yun-sheng CHEN Yang |
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| Institution: | 1. College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121013,China; 2. Jinzhou Petrochemical Company, Jinzhou 121001, China |
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| Abstract: | In this paper, the method that the content of reduction-type type vitamin C in green pepperis determined with molybdenum blue colorimetry is introduced . The maximum of absorption wavelength and the optimum technical conditions are determined in the experiment. There is a strong absorption at 839nm . The linear range of determination is 0. 004-0. 024mg/mL. The coefficient of variation is less 2.51%. The recovery is 95.1%-96.7%. |
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| Keywords: | vitamin C ultraviolet-visible spectrophotometer green pepper |
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