血竭始载于《唐本草》 ,是树脂类药物 ,大多系进口 ,呈圆饼形或大小不等的块状 ,对其真伪鉴别 ,按传统方法不外于 :一看外形和色泽 ;二在纸上加热烘烤或燃烧嗅其烟气 ;三用手指捏捻感觉硬度及粘性等。但这些做法主要针对伪品血竭多为松香加色素制成 ,对拙劣伪品一般尚能奏效。 The blood was originally contained in “Tang Ben Cao”, which is a resinous drug. Most of them are imported. They are round cake-shaped or blocky in size. Their authenticity is differentiated according to traditional methods: a look at the appearance and color; Second, heat and bake on the paper or burn and smell the smoke; third, pinch and feel the hardness and stickiness with the fingers. However, these practices are mainly directed at counterfeit blood-dampards, which are mostly made of rosin plus pigments, and generally work well for counterfeit products.