Gas-Solid Chromatography Studies Using Activated Charcoals Treated With 4-Vinylpyridine
Abstract
The present paper reports the performance of a series of 4- vinylpyridine-impregnated charcoals as gas-solid chromatograph columns in the retention of water, a series of alcohols (methanol, ethanol, n-propanol, iso- propanol, n-butanol, tert-butanol), and several hydrocarbons (methane, ethane, propane, cyclopropane). The 4-vinylpyridine loading ranged up to 30% by weight. The activated charcoal was a coal-based one with a surface area of about 1000 sq m/gm. The use of activated charcoal in gas chromatography centers around the analysis of low boiling gases and hydrocarbons. Treatment of activated charcoal with 4-vinylpyridine led to decreases in both retention times and heats of adsorption for the organics examined. Increasing the 4-vinylpyridine content resulted in further decreases; an exception was noted with water in which case a minimum in the retention time was noted with charcoals containing 3% to 5% 4- vinylpyridine.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1982
- Accession Number
- ADA122284
Entities
People
- Edward J. Poziomek
- Gerhard Magin
- James A. Baker
- William S. Magee Jr.
Organizations
- United States Army Armament Research, Development and Engineering Center