近年来发现本地区市售掺伪和伪品血竭,从性状上较难鉴別。笔者应用薄层鉴别取得较为满意的结果。一、样品血竭和伪品血竭的标本由中国药品生物制品检定所提供。掺伪血竭样品由本地区四级医药批发站送验。二、样品制备取适量样品置研 In recent years, it has been found that the blood of adulterants and counterfeit products in the region are difficult to identify from the traits. The author applied thin layer identification to obtain satisfactory results. I. Specimens of Blood Exhaustion and Blood Decoction of Counterfeit Products are provided by China National Institute for the Control of Pharmaceutical and Biological Products. Samples of adulterated blood were sent to the four-tier medical wholesale station in the region for inspection. Second, sample preparation take the appropriate amount of samples