扫描电镜在生药研究领域中的应用概况

扫描电子显微镜是近半个世纪以来迅速发展的一种电子光学仪器，具有制样方法简单、分辨率高、可连续调节放大倍数、景深大、成像立体等特点，应用领域十分广阔。本文对其在生药学领域的应用情况进行了归纳总结，内容包括植物类生药的孢子与花粉、种子与果实、茎叶等，动物类生药的皮、毛、鳞片等，以及矿物类生药的晶体表面与内部结构的形态特征观察等，为促进扫描电镜在生药分类、鉴别等方面的推广应用提供了参考。

Applications of scanning electron microscope in pharmacognosy research

Scanning electron microscope （SEM）, as a new kind of electronic photonic instrument, has the advantages of sim-ple sample preparation, high resolution, magnification adjusted consistently, larger depth of field and stereoscopic vision, and it has a wide range of applications. This paper has consulted the applications of SEM in pharmacognosy concluding plant （in-cluding spores and pollen, seeds and fruit, stem and leat）, animal （including skin, hair, scales）, and mineral （including mor-phological characteristics and the internal structure） etc., and provided the reference for the popularization and application of SEM in the classification and identification of pharmacognosy.