为了改变一些药物的性能,使之产生或增强止血作用,或消减其毒副作用,须将这些药物制成炭药以供临床应用。炭药的质量标准俗称“存性”。由于中药炮制传统技术受历史条件所限,制备炭药目前尚缺乏统一的客观质量标准,大多仍处于经验鉴定阶段,“存性”较难掌握.笔者就此浅谈如下. In order to change the properties of some drugs, make them produce or enhance hemostasis, or reduce their toxic and side effects, these drugs must be made into charcoal drugs for clinical application. The quality standards for carbon medicines are commonly called “existence.” Due to the limited historical conditions of traditional Chinese medicine processing techniques, the preparation of carbon medicines currently lacks a unified objective quality standard, and most of them are still in the stage of experience identification. The “existence” is more difficult to grasp.