Capillary Column Gas-Liquid Chromatography

Criteria for essential fatty acid deficiency in plasma as assessed by capillary column gas-liquid chromatography.

To develop criteria for deficiency of essential fatty acids (EFA), we used capillary-column gas-liquid chromatography to determine fatty acids (percentage of total fatty acids) in plasma obtained in the fasting state from 56 reference subjects and from 10 patients with intestinal fat malabsorption and suspected EFA deficiency. Fatty acid evaluations (percentage of total fatty acids) that allowe...

Column switching analysis with packed-capillary columns in gas chromatography.

By introducing sequentially connected two packed-capillary columns, a wide range of volatile compounds were successfully separated in gas chromatography. The hyphenation of two packed-capillary columns of 1.0 mm i.d. was accomplished using a conventional 6-port valve, where the temperature of each column was individually controlled in the respective column ovens. These columns were prepared w...

Column Liquid Chromatography

Capillary Column Selectivity and Inertness for Sulfur Gas Analysis in Light Hydrocarbon Streams by Gas Chromatography

Development of Capillary Liquid Chromatography

Ishii’s group at Nagoya University started microcolumn liquid chromatography (μLC) more than 30 years ago [1]. His ideas have been realized in user−friendly μLC systems which are now commercially available from a number of manufacturers. In the meantime, injection valves with low dead volume, pumping systems working at low flow rates, high−resolution columns, and novel detection systems have be...