申请人:Kyushu University
National University Corporation
公开号:EP2730918A1
公开(公告)日:2014-05-14
Provided is a matrix for MALDI mass spectrometry that has a high ability of ionizing low-molecular-weight compounds, and makes it possible to make measurement in a negative ion mode. The matrix is a matrix for mass spectrometry that contains one or more compounds selected from the group consisting of compounds each represented by the following general formula (I), (II) or (III), and their salts thereof. In the formulae (I), (II) and (III), X and Z are each C or N; R1 and R5 are each selected from the group consisting of H, an alkyl group, a (substituted) aryl group, a (substituted) arylalkyl group, and a (substituted) heteroaryl group; R2 and R6 are each selected from the group consisting of H, an alkyl group, an alkoxyl group, an amino group, a halogen atom, a nitro group, an allyl group, a (substituted) aryl group, and a (substituted) heteroaryl group; and R7 and R8 are each selected from the group consisting of H and an amino group provided that a case where R1 = R2 = H, and a case where R7 = R8 = an amino group are excluded.
本发明提供了一种用于 MALDI 质谱分析的基质,该基质对低分子量化合物具有较高的电离能力,并可在负离子模式下进行测量。该基质是一种用于质谱分析的基质,含有一种或多种选自以下通式 (I)、(II) 或 (III) 所代表的化合物及其盐类的化合物。在式(I)、(II)和(III)中,X 和 Z 各自为 C 或 N;R1 和 R5 各自选自由 H、烷基、(取代的)芳基、(取代的)芳烷基和(取代的)杂芳基组成的组;R2和R6各自选自由H、烷基、烷氧基、氨基、卤素原子、硝基、烯丙基、(取代的)芳基和(取代的)杂芳基组成的组;以及R7和R8各自选自由H和氨基组成的组,但不包括R1=R2=H的情况和R7=R8=氨基的情况。