The phase behavior in the oleic acid/sodium oleate/normal saline (0.15 M NaCl aqueous solution) system has been determined. For this purpose visual inspection of samples between crossed polarizers, and Small Angle X-ray diffraction was used to identify the various phases and their unit cell dimensions. A rich phase behavior was observed for the ternary system, featuring reverse micellar, micellar cubic, hexagonal, and cubic phases, and large regions with lamellar phases. As expected the ratio the ‘oleic acid/sodium oleate’ determines the pH and as a consequence the phase behavior. The results could be modeled by an extended Henderson–Hasselbalch (HH) equation, which takes into account the electrostatic potential at the aqueous lipid interface. The knowledge obtained is important for understanding the lipolysis of triglycerides, as the phase behavior of the end-product of the reaction regulates how well the insoluble product can be dispersed and consequently the kinetics of the process.

已确定在油酸/油酸钠/生理盐水（0.15 M NaCl水溶液）系统中的相行为。为此，目视检查交叉偏振器之间的样品，并使用小角X射线衍射来识别各种相及其晶胞尺寸。对于三元体系，观察到了丰富的相行为，其特征是反胶束相，胶束立方相，六方相和立方相，以及具有层状相的大区域。正如预期的那样，“油酸/油酸钠”之比决定了pH值，因此决定了相的行为。可以通过扩展的Henderson-Hasselbalch（HH）方程对结果进行建模，该方程考虑了脂质水溶液界面的静电势。获得的知识对于理解甘油三酸酯的脂解作用非常重要，