碘酸钾滴定分析方法的影响因素探究  

Exploring the Influencing Factors of Potassium Iodate Titration Analysis Method

作　　者：王莹莹 WANG Yingying(Shandong Institute of Metallurgical Science Co.,Ltd.,Jinan 250102,China)

机构地区：[1]山东省冶金科学研究院有限公司标准物质中心,山东济南250102

出　　处：《山东冶金》2024年第5期28-31,共4页Shandong Metallurgy

摘　　要：研究了运用自动电位滴定仪,以硫代硫酸钠滴定分析用水溶液标准物质标定碘酸钾滴定液时的最佳实验条件。此方法电极响应速度快,终点电位突跃明显,终点误差小,相对标准偏差小于0.2%,可作为碘酸钾滴定分析用溶液标准物质的均匀性、稳定性检验及量值核验的方法。The optimal experimental conditions for calibrating potassium iodate titrant with sodium thiosulfate titration analysis water solution standard substance was studied using an automatic potentiometric titrator.This method has a fast electrode response speed,significant end point potential jump,small end point error,and a relative standard deviation of less than 0.2%.It can be used as a method for testing the uniformity,stability,and quantity verification of standard substances in potassium iodate titration analysis solutions.

关 键 词：碘酸钾 硫代硫酸钠 电位滴定 

分 类 号：O655.2[理学—分析化学]