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反相高效液相色谱检测低浓度5-氨基乙酰丙酸

Chinese Agricultural Science Bulletin(2013)

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Abstract
建立了一种柱前衍生反相高效液相色谱检测溶液中低浓度5-氨基乙酰丙酸的方法,填补了低浓度ALA的HPLC法检测的空白。使用Agilent SB-C18型色谱柱(250mm×4.6mmi.d.,5μm),以50mM甲醇-醋酸钠缓冲溶液(pH4.0)洗脱,流速为1mL/min,柱温30℃,254nm波长下检测10min。在此条件下,5-氨基乙酰丙酸在浓度为1~1000mg/L范围内与色谱峰面积值之间线性关系良好,回归系数均在0.9999以上。发酵液产物的加标回收率平均值为101.7%。将检测结果与分光光度法相比,符合较好。测试数据表明,此方法简单、可靠,对于低浓度的ALA测定效果良好。
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Key words
reversed phase high performance liquid chromatography,5-Aminolevulinic acid,precolumn derivation,low concentration
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