在原料药生产工艺中，特别是某些如类固醇的高效化学制品生产中，如果设备不是专用的，必须考虑副产品的问题。
In a bulk process, particularly for very potent chemicals such as some steroids, the issue of by-products needs to be considered if equipment is not dedicated.
等度洗脱建立了氯沙坦钾原料药的高效液相色谱（ HPLC）含量测定方法，方法准确可靠， 梯度洗脱建立了氯沙坦钾原料中有关物质的HPLC检查方法。
A method was established for determination of losartan potassium and related substances by HPLC. The proposed method was simple, selective, accurate and reproducible.
试验研究建立了高效毛细管电泳法测定利培酮原料药及其口崩片的含量及有关物质的含量。
In this paper, a high performance capillary electrophoresis method was established for the determination of risperidone and the related substances in raw material and its tablets.
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