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我们采用二步紫外激光光解法提高了维生素D_3前身P_3的转化率.先用248um KrF准分子激光辐照7-去氢胆甾醇的乙醇溶液.把7-去氢胆甾醇转变为维生素D_3的前身P_3和速变甾醇T_3,然后再用337nmN_2分子激光辐照,把速变甾醇T_3再转变
We used a two-step UV laser photolysis method to improve the conversion rate of P_3 precursor of vitamin D. The first use of 248um KrF excimer laser irradiation 7-dehydrocholesterol ethanol solution. The 7-dehydrocholesterol into vitamin D_3 predecessor P_3 and fast sterol T_3, and then 337nmN_2 molecular laser irradiation, the rapid changes in sterol T_3