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目的:建立同时测定吲哚美辛呋喃唑酮栓中两组分含量的HPLC法。方法:采用XTerraRP18色谱柱(250 mm×4.6 mm,5μm),以甲醇为流动相A,0.01 mol·L~(-1)磷酸二氢钾溶液-三乙胺(100∶0.02)为流动相B,梯度洗脱,流速1.0 ml·min~(-1),柱温30℃,检测波长263 nm,进样量10μl。结果:吲哚美辛呋喃唑酮栓中呋喃唑酮和吲哚美辛的分离度符合要求;线性范围分别为5.12~81.87μg·ml~(-1)(r=1.000 0)和3.78~60.45μg·ml~(-1)(r=1.000 0);平均回收率分别为99.6%(RSD=1.5%,n=6)和100.3%(RSD=1.6%,n=6);定量限分别为0.02μg·ml~(-1)和0.05μg·ml~(-1)。结论:该法经方法学验证,适用于吲哚美辛呋喃唑酮栓的质量评价。
Objective: To establish an HPLC method for simultaneous determination of two components in indomethacin furazolidone suppositories. Methods: The mobile phase A was eluted with XTerra ® RP18 (250 mm × 4.6 mm, 5 μm) using methanol as mobile phase A and 0.01 mol·L -1 potassium dihydrogen phosphate solution - triethylamine (100:0.02) Phase B, gradient elution, flow rate 1.0 ml · min -1, column temperature 30 ℃, detection wavelength 263 nm, injection volume 10μl. Results: The resolution of furazolidone and indomethacin in indomethacin furazolidone plug was satisfactory. The linear range was 5.12 ~ 81.87μg · ml -1 (r = 1.000 0) and 3.78 ~ 60.45μg · ml ~ (R = 1.000 0). The average recoveries were 99.6% (RSD = 1.5%, n = 6) and 100.3% (RSD = 1.6%, n = 6) ~ (-1) and 0.05μg · ml ~ (-1) respectively. Conclusion: The method is validated by methodology and is suitable for the quality evaluation of indomethacin furazolidone suppository.