The methods described herein generally relate to characterization of large analytes, such as biomolecules, by molecular mass analysis. Specifically, the methods are directed to molecular mass analysis of singly- or multiply-charged ions by selective ion filtering carried out by a digital thresholding...http://www.google.fr/patents/US7714275?utm_source=gb-gplus-shareBrevet US7714275 - Mass spectrometry with selective ion filtration by digital thresholding
Mass spectrometry with selective ion filtration by digital thresholding