申请人:Ajinomoto Co., Inc.
公开号:EP1750126A1
公开(公告)日:2007-02-07
A method and apparatus for analyzing compounds with amino group including various amino acids, derivatives thereof, and amino acid analogues contained in biological organisms far more rapidly and easily with higher sensitivity than conventional methods. A compound with amino group is reacted with a reagent for derivatization to generate a derivative of the compound with amino group represented by the following general formula (I), and then the derivative of the compound with amino group is eluted by liquid chromatography using a stepwise elution means on a concentration gradient. Subsequently, the derivative of the compound with amino group eluted from the liquid chromatography is detected by mass spectrometry.
In the formula, Ar1 denotes an optionally substituted hydrocarbon, or a substituent comprising a carbocyclic or heterocyclic ring having an aromaticity, R1 denotes a hydrogen atom, an optionally substituted alkyl group, or a ring forming carbon atom, and R2 denotes an optionally substituted alkyl group, where Ar1 and R1, or R1 and R2 may form a ring with each other.
一种方法和装置,用于分析生物体内含有的含氨基化合物,包括各种氨基酸、其衍生物和氨基酸类似物,比传统方法更快、更简便、灵敏度更高。将带氨基的化合物与衍生化试剂反应,生成由以下通式(I)表示的带氨基化合物的衍生物,然后用液相色谱法以浓度梯度逐步洗脱的方式洗脱带氨基化合物的衍生物。随后,用质谱法检测从液相色谱法洗脱出的带氨基的化合物衍生物。
式中,Ar1 表示任选取代的烃,或由具有芳香性的碳环或杂环组成的取代基,R1 表示氢原子、任选取代的烷基或形成环的碳原子,R2 表示任选取代的烷基,其中 Ar1 和 R1 或 R1 和 R2 可相互形成环。