The distribution of carboxylic group were determined by conductance titration and affected by the concentration of surfactant, the volume fraction and the amount of methyl acrylic acid.
同时，用电导滴定法测定了乳胶粒表面羧基的含量，探讨了乳化剂浓度、羧酸含量及内相比对羧基分布的影响。
2
For the water volume fraction measurement of oil-in-water flow, the mathematical model for the forward problem of sensitivity field in the ring-shape four-electrode conductance sensor was analyzed.