The three main methods for high purity zincpreparation, including electrolytic method, vacuum distillation, zone refining, are summarized and compared in this paper.
本文对目前高纯锌的三种主要制备方法(电解法、真空蒸馏法、区域熔炼法)进行了综述和比较。
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Objective: Select herb according to method of activating the spleen, compose Yunpi Recipe, observe the treatment effect on infantile anorexia (ia) comparison with zincpreparation.
目的：以运脾法选药组方，组成运脾方，并与西药锌制剂对照治疗，观察对儿童厌食症的治疗作用。
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OBJECTIVE To study the preparation method of zinc oxide film and quality control.