| 摘要 |
The present invention relates to the use of a halogenated cyanocinnamic acid derivative of the general formula: where R is independently selected from among F, Cl, and Br, n = 3, 4, or 5, R' is selected from among COOH, CONH2, SO3H, and COOR", and R" = C1-C5 alkyl; and/or of 4-brom-a-cyanocinnamic acid and/or of a-cyano-2,4-dichlorocinnamic acid in a matrix for MALDI mass spectrometry of an analyte. |
