| 摘要 |
The invention relates to acquisition methods for fragment ion spectra of peptides in RF ion trap mass spectrometers, which are usually coupled to separation methods such as chromatography or capillary electrophoresis. The invention provides a method which analyzes each fragment ion spectrum measured for the occurrence of a dominant ion species. Such an occurrence leads to the measurement being repeated, but this time with an additional collision excitation of the dominant ion species. The initial fragmentation can be induced by collisions or electrons. |
