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柱前衍生高效液相色谱测定小儿复方氨基酸注射液中氨基酸
引用本文:朱影恬,曾雯瑜,张中伟,罗珍,王远兴.柱前衍生高效液相色谱测定小儿复方氨基酸注射液中氨基酸[J].分析科学学报,2009,25(6).
作者姓名:朱影恬  曾雯瑜  张中伟  罗珍  王远兴
作者单位:南昌大学食品科学与技术国家重点实验室,江西南昌,330047
摘    要:建立了高效液相色谱(HPLC)测定小儿复方氨基酸注射液中各种氨基酸含量的方法.采用Kromasil C18(250×4.6 mm,5 μm)色谱柱,以2,4-二硝基氟苯为衍生试剂,梯度洗脱.流动相A为乙腈∶水(50∶50,V/V),流动相B为0.04 mol/L的磷酸二氢钾溶液(pH=6.8);流速为1.0 mL/min;检测波长为360 nm.所测氨基酸的线性范围为0.008~0.2213 mg/mL,平均回收率在97.85%~102.86%之间.

关 键 词:高效液相色谱法  柱前衍生  2  4-二硝基氟苯  氨基酸

Determination of Amino Acids in Children Compound Amino Acid Injection by Pre-column Derivatization High Performance Liquid Chromatography
ZHU Ying-tian,ZENG Wen-yu,ZHANG Zhong-wei,LUO Zhen,WANG Yuan-xing.Determination of Amino Acids in Children Compound Amino Acid Injection by Pre-column Derivatization High Performance Liquid Chromatography[J].Journal of Analytical Science,2009,25(6).
Authors:ZHU Ying-tian  ZENG Wen-yu  ZHANG Zhong-wei  LUO Zhen  WANG Yuan-xing
Institution:ZHU Ying-tian,ZENG Wen-yu,ZHANG Zhong-wei,LUO Zhen,WANG Yuan-xing*(State Key Laboratory of Food Science and Technology,Nanchang University,Nanchang 330047)
Abstract:A pre-column derivatization high performance liquid chromatogrphy method for the determination of amino acids in the children compound amino acid injection was established. The sample was derivatized with 2,4-dinitrofluorobenzene(DNFB). Kromasil C18 column (250×4.6 mm,5 μm) was used. The gradient elution was performed using mixed solution of acetonitrile and water (50∶50,V/V), and 0.04 mol/L KH_2PO_4(pH=6.8) as the mobile phases respectively at a flow rate of 1.0 mL/min. All the amino acids measured show good linear relationship within 0.008~0.2213 mg/mL and average recoveries between 97.85% and 102.86%.
Keywords:High performance liquid chromatography  Pre-column derivatization  2  4-dimitroflnorobenzene  Amino acids
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