Normalised Overlays Confirm Purity

Automatic peak purity checks were made by the same upside and downside, “on-the-fly”, scans for all four peaks.

The results are shown for peaks 3 and 4 only, overlayed before and after normalisation of the spectral scans. Peak 4 is shown in the upper two plots and Peak 3 in the lower two.

From the overlays, particularly when normalised, it is seen that a near perfect match is obtained indicating that these peaks were homogenous and hence pure, as also were Peaks 1 and 2.

Eight Scans of Peaks

Several means of triggering the wavelength scan of a peak are user selectable.

In the example shown here, WaveQuest was programmed to make repetitive scans of pyrene as it eluted.