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据报导,内蒙化工科研所选用了离子选择性电极测定天然碱中CO_3~=、HCO_3~-、SO_4~=、Cl~-、Na~+的仪器分析方法.用玻璃电极作指示电极,饱和氯化钾甘汞电极作参比电极,用盐水标准液为滴定剂,自动电位滴定法测定CO_3~=、HCO_3~-;用铅电极为指示电极,双液接饱和氯化钾甘汞电极为参比电极,在75%乙醇体系中,用硝酸铅为滴定剂,自动电位滴定法测定SO_~=,以
It has been reported that the ion-selective electrode was used in Inner Mongolia Chemical Industry Research Institute to select the instrument for the determination of CO_3 ~ =, HCO_3 ~ -, SO_4 ~ =, Cl ~ -, Na ~ + in the trona.With the glass electrode as the indicator electrode, Potassium calomel electrode as a reference electrode, the standard solution of saline as a titrant, potentiometric titration with CO_3 ~ =, HCO_3 ~ -; with lead electrode as the indicator electrode, double-dip then saturated potassium chloride calomel electrode as a reference Specific electrode, in 75% ethanol system, the use of lead nitrate titrant, automatic potentiometric titration SO_ ~ = to