影响酸度计示值准确性及稳定性的因素分析

Analysis of Factors Affecting the Accuracy and Stability of pH Meter

对影响酸度计示值准确性及稳定性的因素进行分析。影响酸度计示值准确性及稳定性的因素为玻璃电极被污染、酸度计使用前未校准或校准错误、样品溶液不均匀、酸度计温度设置与样品溶液温度不一致。对影响酸度计示值准确性及稳定性问题提出了解决方法。

The factors affecting the stability and accuracy of acidity meter were analyzed. These factors were as follows： glass electrode contamination, acidity meter calibration or calibration errors before use, uneven sample solution, acidity meter temperature settings were not consistent with the sample solution temperature. These solution methods to solve the problems of accuracy and stability were put forward.