Determining the Content of Reduced Vitamin C in Vegetables by Two Methods
Author(s): XIAO Yan-chun, LEI En-chun, GUAN Xiu-jie, GUAN Xiao-lin
Pages: 1035-1037
Year: 2011 Issue: 5
Journal: Hubei Agricultural Sciences
Abstract: 采用钼蓝比色法和2,6-二氯靛酚滴定法测定蔬菜中还原型维生素C含量.结果表明,钼蓝比色法测定蔬菜中还原型维生素C含量,其相对标准差在0.87%～2.59%,回收率在97.20%～103.20%:2,6-二氯靛酚滴定法相对标准差在1.37%～6.07%,回收率在91.20%～103.70%.钼蓝比色法的准确度及精确度均高于2,6-二氯靛酚滴定法,且操作简便、快速,不受样液颜色的影响.
Pages: 1035-1037
Year: 2011 Issue: 5
Journal: Hubei Agricultural Sciences
Abstract: 采用钼蓝比色法和2,6-二氯靛酚滴定法测定蔬菜中还原型维生素C含量.结果表明,钼蓝比色法测定蔬菜中还原型维生素C含量,其相对标准差在0.87%～2.59%,回收率在97.20%～103.20%:2,6-二氯靛酚滴定法相对标准差在1.37%～6.07%,回收率在91.20%～103.70%.钼蓝比色法的准确度及精确度均高于2,6-二氯靛酚滴定法,且操作简便、快速,不受样液颜色的影响.
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