摘要
苦木的细枝(直径：0.5～2cm)中草酸钙结晶含量较多，但生物碱含量很少；粗枝(心材为深黄色)草酸钙结晶含量少或极少，而生物碱含量高。《中国药典》2000年版一部收载的苦木项下，性状与显微的描述为细枝的特征，而薄层鉴别为粗枝的生物碱反应，从而造成性状与显微特征符合规定的苦木，薄层鉴别却出现阴性结果。《中国药典》2000年版一部苦木项下，性状、显微鉴别与薄层鉴别相矛盾，建议修订完善其质量标准。
The numbers of calcium oxalate in the thin twigs of Ramulus et Folium Picrasmae(diameter 0. 5-2cm)is more but the content of alkaloid is lower. The number of calcium oxalate in the thick twigs (color of heartwood presents deep-yellow)is lower or trace but the content of alkaloid is higher. The macroscopical and microscopical characters of Ramulus et Folium Picrasmae described in Chinese Pharmacopoeia(2000 Edition)present the characteristics of thin twigs,but the TLC result presents the characteristics of thick twigs .which cause the TLC results of crude drug that macroscopical and microscopical char-acters in accord with pharmacopoeia is negative. Due to the contradiction between the macroscopical and microscopical characters and TLC characters .suggest the quality standards of Ramulus et Folium Picrasmae should be emended.
出处
《中国药品标准》
CAS
2004年第4期17-19,共3页
Drug Standards of China
关键词
薄层鉴别
《中国药典》2000年版
草酸钙结晶
含量
显微
中草
阴性
木质
质量标准
<Keyword>Ramulus et Folium Picrasmae
Chinese pharmacopoeia
Standard crude drug
macroscopical characters
microscopical characters
in accord with regulation
TLC identification
negative
