This result showed,by the measurement of distribution constant K D ,that the binding constant K and the number of binding sites n of CV were related to the greater solubilization capacity of CV PMo in nonionic microemulsion system than that in micelle.

• 结果表明，与相同含量胶束体系比较，微乳液介质体系中测定灵敏度增加二分之一。 通过测定显色剂在微乳液及相应胶束体系中的分配系数KD、胶束位n和结合常数K，探讨了非离子型O/W微乳液对结晶紫－磷钼杂多酸显色体系的增敏作用机理。