𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Charcoal porous layer open tubular column gas chromatography for permanent gas analysis

✍ Scribed by Hao Yun; Milton L. Lee; Karin E. Markides


Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
422 KB
Volume
7
Category
Article
ISSN
1040-7685

No coin nor oath required. For personal study only.

✦ Synopsis


The preparation of charcoal porous layer open tabular (PLOT) columns, and their application to the separation of permanent gases and light hydrocarbons are reported. Two types of charcoal, coconut and darco charcoal, were used to prepare columns from fused silica capillaries. The performance of these columns was compared to that of a commercially available carbon molecular sieve PLOT column. The coconut charcoal PLOT column produced good retention and resolution for both permanent gases and light hydrocarbons; all separations were achieved in less than eight minutes under isothermal conditions. o 1995 John WiIey & Sons, Inc.


πŸ“œ SIMILAR VOLUMES


Fast gas chromatography of light hydroca
✍ Hao Yun; Milton L. Lee πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons βš– 64 KB

## Relatively long lengths of porous-layer open-tubular (PLOT) columns operated at high carrier gas velocities were used to separate light hydrocarbons and permanent gases in less than 60 s. Two types of stationary phases were used in this study: silica particles and a commercially available carbo

Crown ether substituted polysiloxanes as
✍ Jilong Ge; Ruonong Fu; Aiqin Zhang; Rongping Zhu; Jinghui Deng; Junling Gu; Jiya πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 373 KB

## Abstract Two new crown ether substituted polysiloxanes, 4‐propylbenzo‐15‐crown‐5polysiloxane(PSO‐B‐15C5) and propyloxydibenzo‐14‐crown‐4polysiloxane (PSO‐DB‐14C4), were prepared and used as stationary phases coated on fused‐silica open tubular columns. The chromatographic characteristics, includ

Valve injection for gas chromatographic
✍ Daixin Tong; Allyson M. Barnes; Keith D. Bartle; Anthony A. Clifford πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 658 KB

An injection valve with a small internal loop actuated by pneumatic switching was used for high-speed gas chromatography (GC). Small internal diameter (50 and 100 p m i.d.1 open tubular columns were used for investigations of the injector performance. Several valve injection systems have been tested