Methods :Three wavelength spectrophotometry was adopted.
方法：采用三波长分光光度法。
The differential three wavelength and the simple wavelength spectrophotometry were used for determining isoniazid and rifampicin respectively in compound rifampicin capsules.
分别采用差示-三波长分光光度法和单波长分光光度法测定复方利福平胶囊中的异烟肼及利福平。
The differential three wavelength and the simple wavelength spectrophotometry were used for determining isoniazid and rifampicin respectively in compound rifampicin capsules.
分别采用差示-三波长分光光度法和单波长分光光度法测定复方利福平胶囊中的异烟肼及利福平。
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