A method for the electron transfer - dissociation in mass spectrometers and mass spectrometer system with a vacuum internal electrons in the wall of the ions source for the production of radical - anions for an electron transfer - dissociation of biopolymers

摘要

A method for the electron transfer - dissociation in mass spectrometers, characterized in that multiple positively charged analyte ions and reactant - ions in a reaction cell or in an ion guide system of the mass spectrometer be introduced, and are mixed, wherein the reactant - ions radical - anions, consisting of a aliphatic with an electron affinity between 0,3 and 0,8 electron volts are formed.