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离子计是用于测量溶液中离子浓度的电化学分析仪器,主要分为电计部分和电极部分。在JJG757-2007《离子计》检定规程中只对离子计的电计部分作出要求,并未对相应的电极部分作出具体参数要求。作为对离子计整体性能的检定,笔者认为电极部分的好坏是一个重要条件,因为离子选择性电极容易受到损伤,出现老化和中毒现象,直接影响离子计数据的
Ion meter is used to measure the concentration of ions in the electrochemical analysis of equipment, mainly divided into electricity meter and electrode parts. JJG757-2007 “ion meter” test procedures only for the ion meter of the electricity meter to make some of the requirements, but did not make the specific electrode part of the specific parameters. As a test of the overall performance of the ion meter, I believe that the electrode part of the quality is an important condition, because the ion-selective electrode vulnerable to damage, aging and poisoning phenomenon, a direct impact on the ion meter data