Rapid Temperature-Programmed Separation and Retention Prediction on a Novel Packed-Capillary Column in Gas Chromatography

Rapid Temperature-Programmed Separation of Carbon Monoxide and Carbon Dioxide on a Packed Capillary Column in Gas Chromatography: Application to the Evaluation of Photocatalytic Activity of TiO2

“…The upper LOQs for CO and CO2 were more than 10%, and linear calibration curves were obtained with correlation coefficients greater than 0.99 for both compounds from the LOQ to the upper LOQ. As described in a previous publication, 8 the relative delay of the retention time from the theoretically estimated value was less than 4.6% at a temperature programmed rate of 40 C/min, using the packedcapillary column. A typical chromatogram for the determinations of CO, CO2 and low molecular weight alkanes is shown in Fig.…”

“…The column was prepared by the same procedure as described previously. 8 A stationary phase of Sunpak-A (Shinwa Chemical Industries) particles of between 100 and 80 mesh, corresponding to about 150 and 180 μm in diameter, was packed into a stainless-steel capillary of 1.0 mm i.d., 1.27 mm o.d., 1.0 m length. Then, two stainless-steel capillaries of 0.3 mm i.d., 0.52 mm o.d., 0.5 m length were attached to the inlet and outlet of the packed-capillary column for easy installation to a conventional GC injector and detector designed for the typical capillary column connection.…”

“…8 In these columns, a particulate stationary phase is packed into a thin-wall stainless-steel capillary of 1.0 mm i.d. ; two stainless-steel capillaries of 0.52 mm o.d.…”

“…Therefore, the developed column can be installed in a conventional capillary GC system without any modifications or adapters. Rapid temperature-programmed separation 8 and heart-cutting analysis of complex sample mixtures 9 have been investigated using the developed column.…”

Novel Fire Investigation Technique Using Needle Extraction in Gas Chromatography

“…In order to obtain suitable extraction capabilities with respect to other target compounds, the polymer structure can be further optimized together with optimization of the corresponding extraction/desorption and separation conditions. These studies are currently being continued in our laboratory, and include the development of a novel separation column 19 for these applications.…”