用水来鉴别一些中药材既简便又准确,现介绍几例:第一,麝香。取适量加到开水中,如果不立即熔化、水澄清,去水后仍清香不臭为真品。第二,牛黄。取适量加到半烧杯清水中煮沸、静置一会;真品全部溶化,为黄棕色澄清液,无沉淀和漂浮物。反之即伪品。第三,熊胆。取几颗小粒,浮在水面上,逐渐溶解,能见明显的黄线下降,而不扩散为真品。 The use of water to identify some Chinese herbal medicines is both simple and accurate. Here are some examples: First, musk. Take appropriate amount added to the boiling water, if it is not melted immediately, the water is clarified, and the fragrance is not smelly after going to the water. Second, bezoar. Take the appropriate amount of water into a half-beaker of boiling water and let it sit for a while; all the genuine products are melted, yellow-brown clear liquid, no precipitate and no floating matter. The contrary is false. Third, bear bile. Take a few granules, float on the surface of the water, gradually dissolve, and you can see the obvious yellow line falling without spreading it as authentic.