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两点电位滴定法测定维生素B1
引用本文:冯俊贤,宋丽英,李素娟,郄文娟. 两点电位滴定法测定维生素B1[J]. 分析化学, 1999, 27(4): 453-456
作者姓名:冯俊贤  宋丽英  李素娟  郄文娟
作者单位:解放军石家庄医学高等专科学校化学教研室,石家庄,050081
摘    要:提出了用两点电位滴定法测定维生素B1含量的新方法。本法只需在滴定终点前附近记录两次AgNO3标准溶液体积和相应的电极电位值,利用两点法公式计算滴定终点,从而确定维生素B1含量。本法简便易行,数据处理简单,样品溶液不需过滤,特别适用于片剂中VB1含量的测定。

关 键 词:维生素B1  电位滴定法  药物分析

Determination of VB1 by the Two-Point Potentiometric Titration
Feng Junxian,Song Liying,Li Sujuan,Qie Wenjuan. Determination of VB1 by the Two-Point Potentiometric Titration[J]. Chinese Journal of Analytical Chemistry, 1999, 27(4): 453-456
Authors:Feng Junxian  Song Liying  Li Sujuan  Qie Wenjuan
Abstract:A new method for determining vitamin B1 with the two-point potentiometric titration was established. This method only needs note down the indicating electrode potential two times nearby the end-point and the corresponding titrant volumes AgNO3 standard solution. The end-point can be calculated by the two-point formula. The method has been used for the determination of tablet VB1 .
Keywords:Vitamin B1   potentiometric titration   pharmaceutical analysis  
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