利用原子吸收光谱法,分别测定了颐和春等四种中成药在制剂前的原料药和成品药中铁、锌、铜、锰、镍、镉、铬七种微量元素的含量。测定结果,制剂加工前后各剂型药中微量元素的含量变化程度不同。成品药中微量元素含量比制剂加工前损耗不大。另外,象参芪王浆养血精成品药中微量元素含量高于原料药。 Atomic absorption spectrometry was used to determine the contents of trace elements such as iron, zinc, copper, manganese, nickel, cadmium, and chromium in the raw materials and finished products of four kinds of proprietary Chinese medicines such as wolfberry and spring. As a result of the determination, the content of trace elements in each dosage form drug before and after the preparation was changed to a different extent. The content of trace elements in the finished drug is less than that before the preparation. In addition, the content of trace elements in the finished products like ginseng royal jelly nourishing essence is higher than that of raw materials.