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在高速搅拌池中，分别采用界面吸附法和显微照相法测定ＴＲＰＯ（三烷基氧膦）－煤油／１．０ｍｏｌ／ＬＮａＮＯ３溶液体系两相接触界面积。界面吸附法是采用有机相取样器取出本体有机相，通过测量搅拌前后有机相中ＴＲＰＯ浓度的变化，结合ＴＲＰＯ界面吸附参数计算出两相界面积。采用界面吸附法测定了微量ＴＲＰＯ浓度体系在搅拌池中的界面积，根据实验结果回归了两相界面积关联式，计算值与实验值的相对偏差小于５％。采用显微照相法测量了低浓和高浓ＴＲ－ＰＯ两组体系在不同搅拌条件下的界面积，其结果与界面吸附法关联式计算值基本符合。对两种测定方法的优缺点进行了比较、评价。
In the high-speed stirred tank, the two-phase contact interface area of TRPO (trialkylphosphine oxide) -karose / 1.0 mol / L NaNO 3 solution system was determined by the interface adsorption method and the photomicrograph method respectively. The interface adsorption method adopts the organic phase sampler to take out the bulk organic phase. By measuring the change of the TRPO concentration in the organic phase before and after stirring, the interfacial area of the two phases is calculated according to the adsorption parameters of the TRPO interface. The interfacial area of the trace TRPO concentration system in the stirred tank was determined by the interface adsorption method. According to the experimental results, the correlation between the two phases interfacial area was regressed, and the relative deviation between calculated and experimental values was less than 5%. The interfacial area of the two systems of low and high concentration TR-PO under different agitation conditions was measured by photomicrography. The results were in good agreement with the calculated values by the interfacial adsorption method. The advantages and disadvantages of the two methods were compared and evaluated.