Capillary Gas Adsorption Chromatography

High‐throughput gas chromatography for volatile compounds analysis by fast temperature programming and adsorption chromatography

“…Silica based columns such as GS‐GasPro are suitable for use in the characterization of alkanes, alkenes, reactive dienes, branched, and cyclic hydrocarbons up to C 7 . Its high degree of selectivity was shown in Fig.…”

“…Adsorption chromatography is a logical alternative to partition chromatography for the applications described. Although the unique separation characteristics of adsorption materials in porous layer open tubular (PLOT) columns were recognized at an early stage, it took quite some time before the first adsorbents were commercially available . Adsorbents play an important role in high throughput GC as short and selective PLOT columns can provide adequate retention to separate gases and volatiles.…”

Analytical accuracy of hydrogen measurement using gas chromatography with thermal conductivity detection

“…This can arise when the surface of an adsorbent is covered by the N 2 carrier gas, and a thin layer of a modifying film is likely formed. This weakens the interaction of the H 2 with the adsorbent . When a large amount of a H 2 sample is injected, the phase equilibrium of the N 2 ‐adsorbent system is disturbed by the front H 2 , and adsorption sites that liberate N 2 are therefore exposed to the rear H 2 sample.…”

General Introduction

“…The time (retention time) that has passed between sample introduction and the emergence of the individual analyte bands-the peaks-is, under given conditions, characteristic of the individual analytes, while the size-height or area-of the individual peaks is proportional to their amount. It is not our task to discuss the theory and practice of GC; the reader is referred to the general textbooks (e.g., [1][2][3][4][5][6][7][8][9][10][11]). However, from the brief summary just given, one can immediately draw two conclusions about the sample and its introduction.…”