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龟胶(又称龟板胶)是以龟的干燥腹甲(龟板)煎熬而成的胶块。龟胶具有补血止血等滋补作用,是一种既常用而又比较紧缺的中药。由于目前正品龟胶供不应求,近年来市场上时有伪品出现,单凭外观极难辨别真伪,为此,寻求行之有效的辨别法具有一定的现实意义。笔者通过实践,认为根据龟胶的灰分检查和蛋白质含量测定等简易方法,便可鉴别龟胶的真伪,现介绍如下。一、灰分检查:取样品4g,打碎或剪成薄片,置坩埚中,于灰化炉内,经600～700℃灰化6～8小时,然后观察灰分的性状及与坩埚粘结的
Turtle gum (also known as turtle shell glue) is a tortoise’s dry plastron (turtle shell) suffering from plastic blocks. Turtle gum with nourishing blood and other nourishing effect, is a common and relatively scarce Chinese medicine. Due to the current shortage of genuine tortoises, the appearance of counterfeit goods in the market in recent years is extremely difficult to distinguish the authenticity from the appearance. Therefore, it is of practical significance to seek an effective discrimination method. The author through practice, that according to the test of tortoiseshell ash content and determination of protein content and other simple methods, you can identify the authenticity of turtle glue, are described below. First, the ash inspection: take samples 4g, broken or cut into thin slices, set the crucible, in the ash furnace, after ashing 600 ~ 700 ℃ 6 to 8 hours, and then observe the ash properties and the crucible bond