表可水解鞣质与缩合鞣质的鉴别

http://www.100md.com 《中药化学》

     可水解鞣质?, http://www.100md.com

    缩合鞣质?, http://www.100md.com

    三氯化铁试剂?, http://www.100md.com

    蓝→蓝黑色，含量多时沉淀?, http://www.100md.com

    绿→绿黑色，含量多时沉淀?, http://www.100md.com

    饱和溴水?, http://www.100md.com

    -?, http://www.100md.com

    黄棕色沉淀?, http://www.100md.com

    醋酸铅试剂?, http://www.100md.com

    沉淀，不溶于稀醋酸?, http://www.100md.com

    沉淀，溶于稀醋酸?, http://www.100md.com

    饱和石灰水?, http://www.100md.com

    青灰色沉淀?, http://www.100md.com

    红棕色沉淀?, http://www.100md.com

    盐酸、甲醛微热?, http://www.100md.com

    (Mannich反应)?, http://www.100md.com

    -?, http://www.100md.com

    鞣红沉淀?, http://www.100md.com

    5%硫酸，共沸?, http://www.100md.com

    水解，产生没食子酸，葡萄糖?, http://www.100md.com

    不水解，产生鞣红沉淀

    百拇医药网 http://www.100md.com/Html/TCM/Chemistry/T139.htm