期刊信息
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- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Spectrophotometric Determination of Vitamin B1 Using Iron( ò )-2, 2.-bipyrinine System
摘要/Abstract
摘要:
基于维生素B1(VB1)可将Fe(Ⅲ)还原为Fe(Ⅱ),生成的Fe(Ⅱ)与2,2’联吡啶形成桔红色配合物,建立了偶合反应分光光度法测定VB1的新方法.线性范围2.4~21.0mg/L,相对标准偏差为2.7%.该方法用于VB1片剂、针剂的测定,结果与药典标准方法测得值一致.
Abstract:
new method for determination VB1by Spectrophotometry was developed based on Fe( ó )as the oxidizer of vitamin B1 and 2,2.-dipyridine as the coloring reagent of Fe( ò ) which was produced from Fe( ó ).Linear range 2.4~ 21.0mg/L,the relative standard deviation is 2.7%(Q= 10.0mg/ L,n=11).T he method has been used to determine VB1 in injection and tablets with satisfactory effects.
关键词
关键词:
分光光度法
;
VB1
;
铁(Ⅱ)2,2’联吡啶
Key words:
spectrophotometry
;
vitamin B1
;
Fe( ò )-2,2.-bipyridine