A headspace solid-phase microextraction method for the determination of some secondary compounds of Brazilian sugar cane spirits by gas chromatography

Citation
Ea. Nonato et al., A headspace solid-phase microextraction method for the determination of some secondary compounds of Brazilian sugar cane spirits by gas chromatography, J AGR FOOD, 49(8), 2001, pp. 3533-3539
Citations number
17
Categorie Soggetti
Agricultural Chemistry","Chemistry & Analysis
Journal title
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
ISSN journal
00218561 → ACNP
Volume
49
Issue
8
Year of publication
2001
Pages
3533 - 3539
Database
ISI
SICI code
0021-8561(200108)49:8<3533:AHSMMF>2.0.ZU;2-2
Abstract
A headspace solid-phase microextraction (SPME) method was developed for the determination of secondary compounds from Brazilian sugar cane spirits, or cachaca, by GC-FID. An SPME holder with an 85 mum polyacrylate coating was utilized. The novel method is compared with an optimized method: liquid-li quid extraction (LLE). Both methods showed good linearity, but the repeatab ility for analyses done with the SPME technique (%RSD = 1.8-3.9) was better than for those done with LLE (%RSD = 10.3-11.7). The concentrations of the analytes obtained in the analysis of 12 cachaca samples with the SPME tech nique were higher than those obtained with LLE. In the SPME method the extr action wastes are smaller. Cachaca samples were qualitatively analyzed for GC-MS.