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出 处:《中南药学》2007年第2期124-127,共4页Central South Pharmacy
摘 要:目的建立银杏达莫注射液中白果内酯、银杏内酯A、银杏内酯B及银杏内酯C4种成分的反相高效液相色谱分析方法。方法采用大连江申Hypersil ODS2柱(200mm×4.6mm,5μm),四氢呋喃-甲醇-水(1:22:77)为流动相,流速为1.0mL·min^-1柱温:(35±0.1)℃;ELSD参数:漂移管温度为94℃,气体压力为50psi。结果白果内酯、银杏内酯A、银杏内酯B及银杏内酯C分别在4.25~16.5μg;3.74~14.52μg;3.58~13.86μg;3.40~13.20μg内呈良好的线性关系,且4种成分的平均回收率分别为100.3%(RSD=0.76%),100.0%(RSD=0.39%),99.8%(RSD=0.48%),99.9%(RSD=0.70%)。结论所建立的HPLC-ELSD法具有较好的精密度和重现性,可用于银杏达莫注射液的质量控制。Objective To establish an HPLC-ELSD method for the determination of biloblide, ginkgolide A, ginkgolide B, and ginkgolide C in the ginkgo leaf extract and dipyridamole injection. Methods The chromatographic conditions included Hypersil ODS2 column (200 mm×4.6 mm, 5 μm) , THF-methanol-water (1 : 22 : 77) at the flow rate of 1.0 mL · min^-1 of the mobile phase and at (35±0. 1) ℃. ELSD was used with the drift tube temperature of 94 ℃ and the gas pressure of 50 psi. Results The calibration curve was linear over 4. 25-16.5 fig for biloblide, 3.74-14.52 fig for ginkgolide A, 3.58-13.86 fig for ginkgolide B, and 3.40- 13.20 fig for ginkgolide C. The average recoveries were 100.3% (RSD=0.76%), 100. 0% (RSD=0.39%), 99.8% (RSD=0.48%) and 99.9% (RSD=0.70%), respectively. Conclusion The HPLC-ELSD method was precise, reproducible and stable, which can be applied in the quality control of the ginkgo leaf extract and dipyridamole injection.
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