一种硫酸根的检测方法

• Format: Patent
• Language: Chinese
• Published: 01.03.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

本发明公开了一种硫酸根的检测方法，使用氟离子选择性电极测量氟化氢溶液的初始电势和硫酸铅完全滴入氟化氢的使的终点电势，计算电势的改变量后利用公式计算氟离子的浓度改变量，再通过硫酸根离子和氟离子反应的系数比计算出硫酸根离子的浓度改变量，从而得出待测液中硫酸根的含量，操作简便，无需重复洗涤电极头，降低了操作人员的劳动程度；只需要记录电位差，降低了测量难度，简化了计算过程；无需使用过多试剂，减少了能耗。 The invention discloses a sulfate radical detection method. The method includes the steps of measuring the initial potential of a hydrogen fluoride solution and the final potential when lead sulfate is completely dropped into the hydrogen fluoride by using a fluorine ion selective electrode, calculating the concentration change amount of fluoride ions by utilizing a formula after the change amountof the potential is calculated, and then calculating the concentration change amount of sulfate ions according to the reaction coefficient ratio of the sulfate ions to the fluoride ions, so that thecontent of the sulfate radicals in a to-be-detected liquid is obtained. The operation is simple and convenient, an electrode tip does not need to be repeatedly washed, and the labor intensity of operators is reduced; only the