非自动型电位滴定仪校准方法  

Calibration method of non-automatic potentiometric titrator

作　　者：段长生 王文英 DUAN Changsheng;WANG Wenying(Heilongjiang Hua’an Jingyi Metrology Technology Institute Co.,Ltd.,Harbin 150046,China)

机构地区：[1]黑龙江华安精益计量技术研究院有限公司,哈尔滨150046

出　　处：《化学分析计量》2020年第S01期96-100,共5页Chemical Analysis And Meterage

摘　　要：建立非自动型电位滴定仪校准方法。利用实验验证pH计检定仪校准非自动型电位滴定仪电计准确性,利用衡量法校准其容量准确性,利用pH标准缓冲溶液校准其配套电极的准确性,利用盐酸和氢氧化钠标准溶液校准其滴定准确性和重复性等技术指标。实验结果以示值误差和重复性表示,实验数据可以证明选择的计量标准器具能够满足非自动型电位滴定仪的校准要求。The calibration method of non-automatic potentiometric titrator was estiblished.The applicability of calibrating potential accuracy was calibrated with verificating meter for pH meter,the calibrating capacity was calibrated with weighing method,calibrating accuracy of matching electrode was calibrated with standard pH buffer solutions,and calibrating accuracy and repeatability of titration were calibrated with hydrochloric acid and sodium hydroxide standard solution.The experimental results were expressed by the error indication and repeatability.The experimental data showed that the selected measuring and calibrating instruments can meet calibration requirements of non-automatic potentiometric titrator.

关 键 词：电位滴定仪 pH计检定仪 盐酸标准溶液 氢氧化钠标准溶液 校准方法 

分 类 号：O657.15[理学—分析化学]