Some applications of multidimensional gas chromatography to the enrichment of minor components in essential oil analysis

✍ Scribed by Bicchi, C. ;D'Amato, A. ;Frattini, C. ;Nano, G. M. ;Pisciotta, A.

• Publisher: John Wiley and Sons
• Year: 1989
• Tongue: English
• Weight: 347 KB
• Volume: 12
• Category: Article
• ISSN: 0935-6304
• DOI: 10.1002/jhrc.1240121103

✦ Synopsis

The use of multidimensional gas chromatography (MDGC) forthe analysis of essential oils is gaining in importance. A rarely used application consists in the enrichment of minor components through a MDGC system provided with a cold trap between trap column and analytical column. Under suitable conditions, in fact, the cold-trap can store a trapped compound (or a fraction) for a long time. Consequently, the same fraction can be heart-cut from several successive chromatographic runs on the first column and stored together in order to accumulate trace compounds; afterwards the accumulated fraction can be injected in the analytical column. The possibilities of this technique will be illustrated through some examples of analysis of complex essential oils.