考察了吐温80/正丁醇/水微乳液体系对水难溶性物VD3的增溶作用,对相同浓度VD3的O/W,W/O,B.C.中的微乳液进行了光稳定性研究,分析了温度和pH对O/W微乳液和正丁醇中VD3稳定性的影响。用紫外分光光度法测定样品中VD3的残存率。结果表明,VD3对光、热和酸都比较敏感,但同环境条件下,O/W型微乳液中的维生素D3比较稳定。 The solubilization of water-insoluble VD3 by Tween 80 / n-butanol / water microemulsion system was investigated. The light stability of microemulsion in O / W, W / O and BC with the same concentration of VD3 was studied. The effect of temperature and pH on the stability of VD3 in O / W microemulsion and n-butanol was analyzed. The residual rate of VD3 in the sample was determined by UV spectrophotometry. The results showed that VD3 was sensitive to light, heat and acid, but vitamin D3 in O / W microemulsion was stable under the same environmental conditions.