Interleaved data acquisition

Figure 12.9. A hypothetical timing sequence diagram illustrating interleaved data acquisition methodology for independently defining the measurement time resolution in both the IM and MS dimensions. Following the initial ion injection event [i.e., (a)] the number of TOFMS extractions that are performed define the total IM arrival...

Figure 11. The interleaved sampling scheme used to increase the efficiency of data acquisition in time-resolved CS spectrometer experiments (see text for details). Reproduced with permission from Ref. 86.

Artifacts may be roughly categorized into those due to inherent limitations (e.g. pulses cannot excite unlimited bandwidths even if all hardware components work perfectly) and those that result from improper set-up of the experiment or nonideal functioning of the NMR spectrometer system. In this chapter we will mainly focus on the latter two. These artifacts are more likely to appear in multiple-pulse experiments. Quite often, they are avoided by clever programming of the experiments (e.g. interleaved acquisition of data for NOE spectra, use of pulsed-field gradients instead of phase-cycling). 

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