中药系指在中医药理论指导下使用 ,其性味归经、功能主治记载全面的药物。饮片 ,最初是指为制备汤剂 ,经切制而成的片状药物 ;现泛指经炮制后的、符合标准的、可直接用于临床的任何形状的药物。它的质量好坏 ,直接关系到中药处方、制剂的临床疗效和安全性。而它的质量受多种因 Traditional Chinese medicine refers to medicines that are used under the guidance of the theory of traditional Chinese medicine. Decoction pieces, originally referred to as decoction preparations, have been cut into tablets; they are now generically referred to as concocted, standard-compliant drugs of any shape that can be used directly in the clinic. Its quality is directly related to the clinical efficacy and safety of prescriptions and preparations of traditional Chinese medicines. And its quality is affected by many factors