HPLC法测定净石灵胶囊中芍药苷的含量
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HPLC法测定净石灵胶囊中芍药苷的含量(毕业论文8520字) 摘 要:建立采用高效液相色谱测定净石灵胶囊中芍药苷含量的方法。采用色谱柱为Agilent Eclipe DB C18柱(150mm x4.6mm,5μm),以乙腈-水(13:87)为流动相,流速为1ml/min,检测波长为230nm,柱温为30℃。芍药苷进样量在在0.04~0.36μg范围内与峰面积线性关系良好(r=0.9995),方法的平均回收率为97.30%,RSD为1.26%。高效液相色谱法简便、准确,重现性好,可作为净石灵胶囊的含量测定方法。
关键词:高效液相色谱法;净石灵胶囊;芍药苷;含量测定
Determination of Paeoniflorin in Jingshiling Capsules by HPLC
Abstract: HPLC method was established for the determination of Paeoniflorin in Jingshiling capsule. A Agilent Eclipe DB C18 column(150 mm×4.6 mm,5 μm) was choosed with the mobile phase of acetonitrile and water (13∶87), and the flow rate was 1 mL/min, the detection wavelength was 230 nm.The column temperature was 30℃. The linear range of Paeoniflorin was 0.04~0.36μg and correlation coefficient was 0.9995.The average recovery was 97.3% and RSD was 1.26% . HPLC is simple, accurate and reproducible method, It could used for quality control of Jingshiling capsule.
Key words:HPLC;Jingshiling capsule; Paeoniflorin; Determination
目 录
1 前言 1
1.1含量测定的定义和意义 1
1.2 含量测定方法 2
1.3 净石灵胶囊简介 6
1.4 研究思路和方法 6
2 材料与方法 6
2.1 试验试剂与实验仪器 6
2.1.1 主要仪器 6
2.1.2 主要试剂与材料 7
2.2 对照品溶液的制备 7
2.3 供试品溶液的制备 7
2.3.1 制备前的芍药苷鉴定 7
2.3.2 样品制备 7
2.4 空白样品溶液的制备 7
2.5 三种溶液HPLC对照图谱 8
3.结果和分析 8
3.1 线性关系的考察 8
3.2精密度试验 9
3.3 稳定性试验……………………………………………………………………..……..9
3.4 重复性试验…………………………………………………………………..………10
3.5 加样回收率试验……………………………………………………………..………10
3.6 样品测定…………………………………………………………………………..…11
4. 讨论……………………………………………………………………………………11
4.1测定芍药苷的确定…………………………………………………………...………11
4.2供试品洗脱纯化剂的选择……………………………………………………...……11
4.3 流动相的选择……………………………………………………………....…..……11
5. 结论………………………………………………………………………………………11
参考文献 12
致 谢 13 |