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目的：测定阴道炎栓中甲硝唑的含量。方法：采用一阶导数光谱，以２９７ｎｍ 波长处测定。结果：一阶导数光谱振幅Ｄ值与甲硝唑的含量成线性关系，同时可排除栓剂中其它组分的干扰。测得平均回收率９９－４３ ％ ，ＲＳＤ为０－４２ ％ 。结论：本实验确定了阴道炎栓中甲硝唑的直接定量测定方法
Objective: To determine the content of metronidazole in vaginitis suppository. Methods: The first derivative spectra were taken at 297 nm wavelength. Results: The first-order derivative of the spectral amplitude D and the content of metronidazole linear relationship, while excluding the suppository interference of other components. The average recovery was measured 99-43% with RSD of 0-42%. Conclusion: This experiment determined the direct quantitative determination of metronidazole in vaginitis suppository