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HPLC-CAD法测定马度米星铵的含量
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摘要
采用新型通用型检测器一电雾式检测器(CAD),建立高效液相色谱法测定马度米星铵中马度米星的含量。以0.05%三氟乙酸溶液-乙腈(20.-80)为流动相,CAD检测器蒸发温度35℃,马度米星经常规C18色谱柱分离检测。试验结果表明,马度米星在0.305~625μg/ml浓度范围内,峰面积对数与浓度对数呈线性相关(r==0.9995),平均回收率为102.6%(n=6),RSD为1.3%。本方法简便、线性范围宽,灵敏度高,重现性好,可很好的控制马度米星铵的质量。
A method ofhigh performance liquid chromatography-charged aerosol detection(HPLC-CAD) was optimized for the qualitative and quantitative analysis ofinaduramicin in maduramicinammonium.Theanalytewas separated on C18 chromatographiccolumn using a mobile phase of Trifluoroacetic acid(0.05 mol/L TFA)-acetonitrile(20:80),and detectedby CAD.The evaporative tube temperature was 35℃,filter was 5.0.The results showed that a good linear relationship was accepted in the range of 0.305~625μg/mlwith correlation coefficient 0.9995,and the average recovery was 102.6%(n=6),and the RSD value was 1.3%.The method was simple,a wide linear range,sensitive and reproducibility.This methodwas suited to control the quality of maduramicin ammonium
引文
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