高效液相色谱法测定注射用己酮可可碱中有关物质

China Pharmaceuticals(2015)

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Abstract
目的 建立测定注射用己酮可可碱中有关物质的高效液相色谱(HPLC)法.方法 色谱柱为Agilent Zorbax Eclipse plus C8柱(250 mm × 4. 6 mm,5μm),流动相A为甲醇-0. 544%磷酸二氢钾溶液(3:7),流动相B为甲醇-0. 544%磷酸二氢钾溶液(7:3)梯度洗脱,流速为1. 0 mL/min,,检测波长为272 nm.结果 己酮可可碱与各杂质分离良好,与可可碱、茶碱、咖啡因在质量浓度0. 4~5. 0μg/mL范围内与峰面积呈良好线性关系,定量限分别为8. 5,11. 1,28. 8,12. 6 ng.结论 该法专属性强、灵敏、准确,可用于注射用己酮可可碱有关物质的测定.
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Key words
Pentoxifylline for Injection,related substances,HPLC
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