玻璃电极法测ｐＨ值的点滴经验胡治州（川东天然气净化总厂环境监测站，四川长寿６３１２３６）①先用ｐＨ试纸粗测ｐＨ值大致范围，然后确定校正点。②若采用一点校正法，应选用与待测溶液ｐＨ值最接近的校正溶液进行校正并检验是否准确，选用另一校正溶液作为待测溶液进... Glass electrode method to measure pH value of experience Huzhou (Sichuan East Natural Gas Purification Plant Environmental Monitoring Station, Changshu 631236, Sichuan) ① first coarse pH test paper roughly the range of pH, and then determine the calibration point. ② If one point calibration method is adopted, the calibration solution with the pH value of the solution to be tested should be used to calibrate and check whether it is accurate or not. Then another calibration solution should be selected as the solution to be tested.