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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Anal Chem. 2020 Aug 12;92(17):11809–11817. doi: 10.1021/acs.analchem.0c02075

Figure 1.

Figure 1.

Real-time chromatographic alignment workflow. DIA alignment spectra are acquired, compressed, cross correlated with a control data set separately for each spectrum, and averaged together. The averaged cross-correlation is characterized, and the amount of retention time shift with respect to the control data set is calculated, which determines the set of currently active analytical targets. Finally, targeted MS/MS spectra are acquired for the active targets.