皮炎洗剂定性定量方法研究
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摘要
目的建立皮炎洗剂的定性定量方法。方法采用薄层色谱法对皮炎洗剂中黄柏、大黄、黄芩、苦参进行定性鉴别;采用高效液相色谱法测定皮炎洗剂中盐酸小檗碱的含量,色谱柱:Hedera C18柱(250×4.6 mm,5μm),流动相:乙腈-0.1%磷酸溶液(50:50,每100 m L加入十二烷基磺酸钠0.1g),流速:1.0m L·min-1,检测波长:265nm,柱温:30℃。结果薄层色谱斑点清晰,分离度好,阴性对照无干扰。盐酸小檗碱在3.8125~122.0μg·m L-1范围内,与峰面积呈良好的线性关系(r=0.9999),平均加样回收率97.82%,RSD=0.60%(n=6)。结论所建立的方法简单、准确、重复性好,可用于皮炎洗剂质量控制。
Objective:To establish a qualitative and quantitative method for Piyan lotion.Methods: Phellodendron chinense Schneid.、Rheum palmatum L.、Scutellaria baicalensisGeorgi and Sophora flavescens Ait. were identified by TLC.The content of berberine hydrochloride was determined by HPLC.The Hedera C18 column(250 mm x 4.6 mm,5 μm)was used,acetonitrile-0.1% phosphoric acid solution(50:50,0.1 g sodium dodecyl sulfonate add in each 100 m L solution)as the mobile phase. The flow rate was 1.0 m L·min-1,and the detection wavelengthwas 265 nm,and column temperature was 30℃.Results: The TLC spots were clear with good resolution and without interference from the negative samples.The linear range of berberine hydrochloridewas 3.8125-122.0μg·m L-1(r=0.9999),the average recovery rate was 97.82%,and RSD was 0.60%(n=6).Conclusion: The method is simple,accurate and reproducible,which can beused in the quality control of Piyan lotion.
引文
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