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将固定pH滴定法结合求解一元线性回归方程组应用于极弱酸(碱)混合体系中各组分含量的同时测定。测定了六次甲基四胺-硫酸钠和六次甲基四胺-乙酸钠混合体系中各组分的含量,回收率为96.7％～103.2％。
The fixed pH titration method combined with the solution of a linear regression equation used in the very weak acid (alkali) mixture of components in the simultaneous determination. The contents of the components in the mixture of hexamethylenetetramine - sodium sulfate and hexamethylenetetramine - sodium acetate were determined. The recoveries ranged from 96.7% to 103.2%.