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高效液相色谱法测定人血浆中总高半胱氨酸含量
Determination of Plasma Homocysteine in Normal Adults by High Performance Liquid Chromatography with Fluorescence Detection
【摘要】 建立了快速检测人血浆中总高半胱氨酸含量的高效液相色谱(HPLC)方法。采用反相HPLC分析前,以巯基特异性荧光试剂ABDF对血浆中巯基进行衍生.方法简便、灵敏、准确,无干扰峰影响。平均回收率为97.75%,日内和日间精密度分别为4.49%和9.79%。
【Abstract】 A rapid, isocratic high performance liquid chromatographic(HPLc) method with fluorescence detection was used for the determination of total homocysteine (Hcy) levels in human plasma. Prior to reversed-phase HPLC analysis, the plasma thiols were derivatized with ABDF(7-fluoroben3o-2-oxa-1,3-diazole-4-sulfonamide), a thiol specific fluorogenic probe. A mobile phase consisted of 0. 1 mol/L potassium dihydrogen phosphate (pH 2. 1, containing 10% of acetonitrile) ensured base line separation of plasma Hey.The mean recovery of this method was 97. 75%. The intraday and interday coefficient of variations were 4. 49% and 9. 79%, respectively’ The method is simple, sensitive,reproducible and very suitable for routine determination of plasma Hey in human.
【Key words】 high performance liquid chromatography; homocysteine; plasma;
- 【文献出处】 色谱 ,Chinese Journal of Chromatography , 编辑部邮箱 ,1999年03期
- 【分类号】O657.7
- 【被引频次】23
- 【下载频次】142