Patent ID: 9576781
Date: 2017-02-21
CPC Classifications: H01J

Claim:
1. A method of mass spectrometry comprising: transmitting ions and obtaining first mass spectral data; and automatically determining during an acquisition whether said first mass spectral data suffers from saturation or is approaching saturation; wherein if it is determined during an acquisition that said first mass spectral data suffers from saturation or is approaching saturation then said method further comprises: (i) automatically changing or altering the intensity of ions which are detected by an ion detector and obtaining second mass spectral data; and (ii) substituting one or more portions of said first mass spectral data with one or more corresponding portions of said second mass spectral data multiplied or scaled by an attenuation or scale factor or by an integer or other value so as to form a composite mass spectrum, wherein said composite mass spectrum comprises one or more ion peaks from said first mass spectral data and one or more ion peaks from said second mass spectral data.