Since its early days, conventional gas chromatography (1D-GC)
has been recognised as a tool offering higher peak capacities than
other chromatographic techniques. Over the years, dramatic progress
has been made and, today, state-of-the-art 1D-GC on capillary
columns can, typically, separate some 100–150 peaks in one
run However its
resolution power is insufficient to fully resolve each individual
constituent in real complex samples, ranging from oils, petrochemicals,
environmental samples, cigarette smoke, and food matrices,
without sacrificing analysis time. It has been reported by Berger
that, in an 11 h experiment, the use of a 400 m column presented
a resolution of 1.3 million theoretical plates, which was far from
sufficient for the total separation of a fuel sample
Since its early days, conventional gas chromatography (1D-GC)
has been recognised as a tool offering higher peak capacities than
other chromatographic techniques. Over the years, dramatic progress
has been made and, today, state-of-the-art 1D-GC on capillary
columns can, typically, separate some 100–150 peaks in one
run However its
resolution power is insufficient to fully resolve each individual
constituent in real complex samples, ranging from oils, petrochemicals,
environmental samples, cigarette smoke, and food matrices,
without sacrificing analysis time. It has been reported by Berger
that, in an 11 h experiment, the use of a 400 m column presented
a resolution of 1.3 million theoretical plates, which was far from
sufficient for the total separation of a fuel sample
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