Patent ID: 9576777
Date: 2017-02-21
CPC Classifications: G01N,H01J

Claim:
1. A method of analysing ions in a Data Dependent Acquisition (DDA) experiment comprising: performing an initial multi-dimensional survey scan comprising separating parent ions according to a first physico-chemical property and separating said parent ions according to a second physico-chemical property; determining a plurality of parent ions of interest to be selected for the DDA experiment from said initial multi-dimensional survey scan; and then sequentially selecting and transmitting said plurality of parent ions of interest based upon said first physico-chemical property and said second physico-chemical property during a single acquisition or cycle of separation; and analysing either: (i) one or more of said plurality of parent ions of interest; or (ii) one or more fragment, product or other ions derived from one or more of said plurality of parent ions of interest.