The Analysis of Vitamins 维生素类药物分析掌握维生素B1维生素C及其制剂的鉴别检查和含量测定方法熟悉维生素A的鉴别和含量测定方法了解维生素DE的鉴别和含量测定方法 CHARACTERS 性质 Retinol acetate occurs as pale-yellow crystals (melting point about 60 ?C). Once melt