申请人:Stahl Bernd
公开号:US20050158863A1
公开(公告)日:2005-07-21
Matrices for ultraviolet matrix-assisted laser desorption/ionisation mass spectrometry consisting of a salt of an amine reacting as a proton acceptor and an organic substance reacting as a proton donor, wherein either the amine or the organic substance absorbs UV light, are provided These matrices are characterised in that the matrices are in the form of an ionic liquid at room temperature, that the amine is selected from the group consisting of 3-aminoquinoline, pyridine, a primary amine, to whose N atom may be bound a phenyl residue or a linear or branched, saturated C
1
-C
11
alkyl residue, which may be substituted with an OH group, a secondary and tertiary amine, to whose N atom may be bound two or three residues, which may be the same or different. With these liquid matrices, error-free and reproducible analytical values can be obtained, and in particular the coupling of the pure mass spectrometric analysis with the additional findings from enzymatic reactions/modifications with the possibility of monitoring is possible.
提供了用于紫外矩阵辅助激光解吸/电离质谱的矩阵,由一种作为质子接受者的胺盐和一种作为质子供体的有机物反应组成,其中胺或有机物吸收紫外光。这些矩阵的特点在于,在室温下,这些矩阵以离子液体的形式存在,胺从以下组中选择:3-氨基喹啉,吡啶,一种一级胺,其N原子可以与苯基残基或线性或支链饱和C1-C11烷基残基结合,该残基可以被OH基取代,以及一种二级和三级胺,其N原子可以与两个或三个残基结合,这些残基可以相同或不同。使用这些液态矩阵,可以获得无误差和可重复的分析值,特别是可以将纯质谱分析与酶反应/修饰的附加发现相结合,并有可能进行监测。