Observation and explanation of two-dimensional interconversion of oximes with multiple heart-cutting using comprehensive multidimensional gas chromatography

Strategies towards simpler configuration and higher peak capacity with comprehensive multidimensional gas chromatography

“…For example with the 1.0 min H/C window applying along the period from 11.0 to 12.0 min in 1 D separation, all the H/C compounds can be cryogenically trapped and then released with the same starting time in 2 D separation. 12 However, the sampling process from 1 D column without use of cryogenic trap can lead to immediate elution onto 2 D column and thus variation of the start time in 2 D separation. In the case of 11.0–12.0 min heart cutting, compared with a compound with 1 t R of 11.7 min, another compound with 1 t R of 11.2 min will start eluting 0.5 min earlier in 2 D separation.…”

Comprehensive Two-Dimensional Gas Chromatography Advances in Technology and Applications: Biennial Update

“…The 2D results clearly displayed the advantage of using alginate coating to stop migration of mineral oil hydrocarbons and aromatic contaminants into food simulants. Another application of GC×GC was in observation of real-time interconversion dynamics of oxime isomers, 251 which exhibits unusual elution patterns and can be useful in kinetic and thermodynamic studies of the separation process.…”

Multidimensional gas chromatography investigation of concentration and temperature effects of oxime interconversion on ionic liquid and poly(ethylene glycol) stationary phases

“…However, this process occurs in practical separation [21] and needs further investigation to 86 understand separation peak shape and establish reliable approach for kinetics evaluation. In order 87 to promote interconversion in both dimensions, an option is to apply a long 2 D column, but this 88 will result in oversampling in GC GC, with loss of detail and interconversion information for 89 the 1 D separation.…”