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在工农业生产和科学研究工作中,经常需要测量和控制酸碱度(pH)值。例如,在硝酸铵、硫酸铵等化肥生产过程中,准确测量和控制氨酸中和的酸碱度,对提高产品质量,降低原料消耗和减轻工人劳动强度,具有重要意义;在农业生产中,土壤pH值的测定,对作物栽培和合理施肥。能起到指导作用;在稀有元素分离研究中,必须精确测量和控制溶液的pH值。此外,pH测量还广泛地应用于生物、医学,环境分析以及海洋调查等方面。目前,绝大多数的pH测量都是用玻璃电极作为测量电极的pH计来进行的。这是因为玻璃电极具有高度的稳定性,可靠性和重现性,同时又不受
In industrial and agricultural production and scientific research, it is often necessary to measure and control the pH value. For example, in the production of fertilizers such as ammonium nitrate and ammonium sulfate, accurate measurement and control of the acidity and alkalinity of acid neutralization are of great significance for improving product quality, reducing raw material consumption and alleviating workers’ labor intensity. In agricultural production, soil pH Determination of the value of crop cultivation and fertilization. Can play a guiding role; in rare elemental separation studies, the pH of the solution must be accurately measured and controlled. In addition, pH measurements are also widely used in biology, medicine, environmental analysis and marine surveys. Currently, the vast majority of pH measurements are made using glass electrodes as the pH meter for the measurement electrode. This is because the glass electrode has a high degree of stability, reliability and reproducibility without being affected by