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Determination of the Content of Vitamin C in Huai Yao
Pages: 45-49
Year: Issue:  5
Journal: Guangdong Trace Elements Science

Keyword:  怀药 紫外分光光度法 维生素C;
Abstract: 为建立怀药中维生素C含量直接测定新方法,以pH 2.5硫酸溶液为溶剂,采用紫外分光光度法测定了怀药中维生素C含量。结果表明,维生素C在0~15μg/mL范围内与吸光度呈良好的线性关系,回归方程为:y=0.060 29C+0.003 55,r=0.999 9,所选的怀药均含丰富的维生素C,其中怀菊花中高达51.55~53.21 mg/g,怀山药为21.25~30.61 mg/g,怀牛膝为1.13~1.26mg/g。该法操作简单,干扰少,结果准确,测量快速、可实际应用。
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