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目的:为复方毛冬青注射液建立专属性含量测定方法。方法:采用气相色谱法对甲基正壬酮进行含量测定。色谱柱:HP-1(Aglient 19091z-413,30 m×320μm×0.25μm);氮气为9.23 psi,流量1.8 mL/min;空气400 mL/min;氢气40 mL/min;柱温80℃(2 min)至220℃,升温速率为15℃/min;再升至270℃(13.75 min),升温速率为40℃/min;汽化室240℃;检测室280℃;进样量1μL;检测器为FID。结果:线性范围为1.0~20.0μg/mL,平均回收率为99.05%,RSD=1.29%(n=6)。结论:本法操作简单、可靠、具有实用性。
Objective: To establish a method for the determination of specific content of compound Maodongqing injection. Methods: The content of methyl nonyl ketone was determined by gas chromatography. Column: HP-1 (Aglient 19091z-413, 30 m × 320 μm × 0.25 μm); nitrogen was 9.23 psi, flow rate was 1.8 mL/min; air was 400 mL/min; hydrogen was 40 mL/min; column temperature was 80°C (2 Min) to 220°C, heating rate 15°C/min; again to 270°C (13.75 min), heating rate 40°C/min; vaporization chamber 240°C; detection chamber 280°C; injection volume 1μL; detector FID. Results: The linear range was 1.0 ~ 20.0μg/mL, the average recovery was 99.05%, RSD = 1.29% (n = 6). Conclusion: This method is simple, reliable and practical.