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电位滴定法测定酱油中氯化钠含量
引用本文:陈忠明,李家胜. 电位滴定法测定酱油中氯化钠含量[J]. 浙江大学学报(农业与生命科学版), 1995, 0(2)
作者姓名:陈忠明  李家胜
作者单位:浙江农业大学食品科学与技术系
摘    要:探讨了银电极电位滴定法测定酱油中氯化钠含量,结果是:两种添加浓度的方法回收率都大于98%。同一样品测定10次,标准偏差为0.13,CV%=0.84.本法不受样品色泽干扰,终点突跃范围宽,灵敏、准确,是替代指示剂法的理想方法。

关 键 词:酱油;氯化钠;电位滴定法

Determination of sodium chloride in soy sauce hy the potentiometric titration.
Chen Zhongming,Li Jiasheng. Determination of sodium chloride in soy sauce hy the potentiometric titration.[J]. Journal of Zhejiang University(Agriculture & Life Sciences), 1995, 0(2)
Authors:Chen Zhongming  Li Jiasheng
Abstract:This paper studied the determination of sodium chloride content in soy sauce by thepotentiometric titration of silver electrode.The method recoveries were greater than 98%,Whenthe same sample was determined ten times,the standard deviation and CV%was 0.13 and 0.84,re-spectively,This method has higher a sudden leap of potential at the end point of titration,sensitivi-ty and accuracy,and can replace the Mohr method successfully.
Keywords:soy sauce  sodium chloride  potentiometric titration
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