用HPLC法测定人凝血酶制品中甘氨酸的含量 |
投稿时间:2019-03-12 修订日期:2019-05-13 点此下载全文 |
引用本文:盛凤仙,张幼捷.用HPLC法测定人凝血酶制品中甘氨酸的含量[J].药学实践杂志,2020,38(1):74~76 |
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基金项目:上海市高新技术成果转化项目(20020406) |
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中文摘要:目的 建立一种测定人凝血酶制品中甘氨酸含量的HPLC方法。方法 以2、4-二硝基氟苯(DNFB)为柱前衍生剂,采用ODS-C18色谱柱,流动相为50%乙腈溶液-0.05 mol/L醋酸钠缓冲液(35︰65),流速1.0 ml/min,检测波长360 nm。结果 甘氨酸的线性范围为0.006~0.030 mg/ml(r=0.999 6),平均回收率为100.4%,RSD为0.44%(n=9)。结论 该方法简便、准确、专属性好,可用于人凝血酶制品中甘氨酸的含量测定。 |
中文关键词:人凝血酶 甘氨酸 丙氨酸 高效液相色谱 |
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Determination of glycine in human thrombin by HPLC |
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Abstract:Objective To establish a HPLC method for glycine assay in the human thrombin.Methods The sample was derivatized with 2,4-dinitrofluorobenzene (DNFB). HPLC was performed on an ODS-C18 column with 50% acetonitrile –0.05mol/L sodium acetate buffer (35:65) as the mobile phase. The flow rate was 1.0 ml/min and detection wavelength at 360 nm.Results The linear range of glycine was 0.006-0.030 mg/ml (r=0.999 6). The average recovery was 100.4%, with RSD 0.44% (n=9).Conclusion This method is simple, accurate and specific. It is suitable for glycine assay in human thrombin. |
keywords:human thrombin glycine alanine HPLC |
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