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微量生色底物法测定肝素钠肌醇烟酸酯乳膏中抗Xa因子效价

China Medical Herald(2017)

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Abstract
目的 建立肝素钠肌醇烟酸酯乳膏中抗Xa因子效价的测定方法.方法 对肝素钠肌醇烟酸酯乳膏进行破乳处理后,采用微量生色底物法、生物检定统计法,测定乳膏中抗Xa因子的效价.结果 建立了肝素钠肌醇烟酸酯乳膏中肝素钠抗Xa因子的测定方法,抗Xa因子在0.0250~0.1020 IU/mL范围内与吸光度(A)值线性关系良好(r=0.996);低、中、高浓度的平均回收率为99.5%,RSD为1.92%(n=9).抗Xa因子和抗Ⅱa因子的效价比值在0.9~1.1范围内.结论 该方法结果准确,重复性好,可用于肝素钠肌醇烟酸酯乳膏中抗Xa因子效价的测定,有效控制该制剂的质量.
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