摘要
目的:改进乙醇制氢氧化钾滴定液的标定方法。方法:新建电位滴定法标定乙醇制氢氧化钾滴定液,并与《中国药典》2010年版指示剂法进行比较。结果:电位滴定法与指示剂法分析结果差别无统计学意义(P>0.05),且电位滴定法突跃明显,精密度好,可信度高。结论:电位滴定法可用于乙醇制氢氧化钾滴定液的标定。
Objective： To improve the standardization method for ethanol potassium hydroxide volumetric solution. Methods： A new potentiometric titration method was established and compared with the indicator method described in Chinese Pharmacopeia （2010 edition）. Results： There was no significant difference between the results of the potentiometric method and the indicator method（P 〉 0.05）. Furthermore, the potentiometric titration had significant jump range, good precision and high reliability. Conclusion： The potentiometric method can be used in the standardization of ethanol potassium hydroxide volumetric solution.
出处
《中国药师》
CAS
2015年第6期1065-1066,共2页
China Pharmacist
关键词
乙醇制氢氧化钾滴定液
标定
电位滴定法
Ethanol potassium hydroxide volumetric solution
Standardization
Potentiometric titration
