Comprehensive two-dimensional liquid chromatography with ultraviolet, evaporative light scattering and mass spectrometric detection of triacylglycerols in corn oil

Recent developments in the rapid analysis of plants and tracking their bioactive constituents

“…While this happens, a new 1 min portion is collected in a loop waiting to be analysed. After proper chemometric treatment more peaks can be observed than with either of the two columns when used alone (Dugo et al 2004;van der Klift et al 2008). Multiple detectors can be used including MS. Two-dimensional GC (GC 9 GC) is even more powerful than LC 9 LC and is theoretically capable of separating [ 10,000 volatile constituents.…”

Comparative analysis of peak-detection techniques for comprehensive two-dimensional chromatography

“…The overlap criterion compares two adjacent 1D peaks in consecutive second-dimension chromatograms and determines if the peaks can be merged based on their retentiontime overlap. Vivó-Truyols and Janssen [4] check the difference in seconddimension retention-time of two candidate 1D peaks and merge them if the difference is smaller than a predetermined threshold [8]. Setting that threshold allows the overlap criterion to account for retention-time shifts between secondary chromatograms.…”

Comprehensive two‐dimensional liquid chromatography with evaporative light‐scattering detection for the analysis of triacylglycerols in Borago officinalis

“…A labmade splitting system was used between the LC-1 pumps and the injector in order to reduce the flow rate for D1 analyses [16]. As detector, an ELS (Shimadzu) was employed.…”