Finding the best separation in situations of extremely low chromatographic resolution

A chromatographic objective function to characterise chromatograms with unknown compounds or without standards available

“…The new approach is based on the measurement of peak prominences (Section 2.3), and was evaluated by scoring simulated chromatograms in comparison with the peak purity criterion, which in previous work has been demonstrated to offer an excellent performance [3,10,12,[24][25][26]. However, the peak purity is only accessible when the standards for all compounds in a sample are available.…”

“…the peak count) [9][10][11][12]. The analysis time is also useful to appraise the results, but it has not been considered in this work.…”

“…More recently, we proposed an approach that allows the optimisation of the resolution level of chromatograms in cases where conventional global criteria, such as the worst resolved peak pair or the product of elementary resolutions are not able to detect any separation [10,12]. The approach makes use of a function that counts the number of peaks exceeding a given threshold of peak purity (i.e.…”

“…These approaches are based on counting the peaks in the chromatogram [9][10][11][12], and are focused on the well resolved peaks, in contrast to conventional COFs that attend mainly to those least resolved. This means that they are oriented to quantify the degree of success in the separation, and not the failure (as classical COFs do).…”