...
首页> 外文期刊>Amino acids >Application of the Phenomenex EZ:faast~(TM)amino acid analysis kit for rapid gas-chromatographic determination of concentrations of plasma tryptophan and its brain uptake competitors
【24h】

Application of the Phenomenex EZ:faast~(TM)amino acid analysis kit for rapid gas-chromatographic determination of concentrations of plasma tryptophan and its brain uptake competitors

机译:Phenomenex EZ:faast〜(TM)氨基酸分析试剂盒在快速气相色谱法测定血浆色氨酸及其竞争对手摄取浓度中的应用

获取原文
获取原文并翻译 | 示例
           

摘要

The Phenomenex EZ:faast amino acid analysis kit is available for gas(GC)or liquid(LC)chromatographic analysis of amino acids(AA)using mass spectrometry(MS)and other GC detectors.We used it for rapid GC determination of plasma tryptophan,its brain uptake competitors(Val,Leu,He,Phe and Tyr)and many other amino acids.Based on solid-phase extraction,this fast method enables one person to process two plasma samples in 8-10 min and six samples in ~ 15 min up to GC injection and a 7-min GC ran per plasma sample.Using a Perkin-Elmer Claras 500 GC,a Total Chrome software,a flame-ionisation detector(FID)and norvaline as internal standard,we used this method to analyse ~1,000 plasma samples from normal subjects undergoing acute tryptophan depletion and loading tests.The limit of detection for most amino acids is 1 nmol/ml(1 mu M)and in many cases less.With manual injection,coefficients of variation for the above six amino acids were 1.5-6.2%(intra-assay)and 3.8-9.7%(inter-assay).This simple,rapid and elegant method will be valuable to the amino acid analyst and researcher,as it can save much manpower time and meet urgent emergency requests and the demands of a high-throughput laboratory.
机译:Phenomenex EZ:faast氨基酸分析试剂盒可用于通过质谱(MS)和其他GC检测器进行氨基酸(AA)的气相色谱(GC)或液相色谱(LC)色谱分析,用于快速GC测定血浆色氨酸,它的大脑吸收竞争对手(Val,Leu,He,Phe和Tyr)和许多其他氨基酸。基于固相萃取,这种快速方法使一个人可以在8-10分钟内处理两个血浆样品,在〜时间内处理六个样品。 15分钟(最多进样),每个血浆样品运行7分钟。使用Perkin-Elmer Claras 500 GC,Total Chrome软件,火焰电离检测器(FID)和正缬氨酸作为内标,我们使用此方法可以分析约1000名接受急性色氨酸消耗和负荷测试的正常受试者的血浆样品。大多数氨基酸的检出限为1 nmol / ml(1μM),在许多情况下更少。手动注射时,上述变异系数为6种氨基酸分别为1.5-6.2%(批内)和3.8-9.7%(批间)。这种简单,快速精巧的方法对氨基酸分析人员和研究人员来说将是有价值的,因为它可以节省大量的人力并满足紧急情况下的紧急需求以及高通量实验室的需求。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号