Selective determination of oxygenates in complex samples with the O-FID analyzer

✍ Scribed by Verga, G. R. ;Sironi, A. ;Schneider, W. ;Frohne, J. Ch.

• Book ID: 102350385
• Publisher: John Wiley and Sons
• Year: 1988
• Tongue: English
• Weight: 412 KB
• Volume: 11
• Category: Article
• ISSN: 0935-6304
• DOI: 10.1002/jhrc.1240110306

✦ Synopsis

A gas-chromatographic analyzer allowing the selective detection of individual oxygenates in complex organic mixtures, such as gasolines, is described. The analyzer is based on the oxygenspecific response flame ionization detection (0-FID) method. The system operates with capillary columns and includes a cracking reactor to convert any oxygenate to carbon monoxide and a special FID equipped with a microreactor for the catalytic hydrogenation of CO and detection as methane. Hydrocarbons give no signal. The selectivity of the method is better than 1:107 and the linear range approaches lo5. The analysis of modern fuels containing oxygenated additives, to improve octane ratings, may greatly benefit from the proposed analytical method.