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  • 1
    Electronic Resource
    Electronic Resource
    Supercritical fluid extraction of flumetralin in tobacco (1996)
    Springer
    Chromatographia 42 (1996), S. 416-420 
    Details
    ISSN: 1612-1112
    Keywords: Supercritical fluid extraction ; SFE vs. solvent extraction ; Flumetralin residues ; Tobacco
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary This work evaluates the level of Flumetralin residues in real tobacco samples. Conventional extraction methods were compared with SFE methods in both static and dynamic modes using CO2 and CO2 with modifier. Additionally, in the dynamic SFE mode, different collection approaches, such as collection at room temperature without solvent, collection at room temperature in the presence of solvent (hexane) and collection in an ice bath, without solvent, were studied. SFE showed itself to be a promising extraction technique for pesticide residues in tobacco samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02272133
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Off-line SFE-CZE analysis of carbamates residues in tobacco samples (1996)
    Springer
    Chromatographia 42 (1996), S. 323-328 
    Details
    ISSN: 1612-1112
    Keywords: Supercritical fluid extraction ; Capillary electrophoresis ; Carbamates residues ; Tobacco samples
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Determination of carbamate residues in tobacco samples was carried out by solid-liquid extraction (SLE) and supercritical-fluid extraction (SFE) methods, both developed for this purpose. The clean-up step was carried out on SPE-Florisil cartridges and the extracts analysed by capillary zone electrophoresis (CZE) with UV detection. The results were compared and SFE using CO2-acetone showed the best results in terms of recovery and generally higher extraction power. SFE in conjunction with CZE proved suitable for carbamate residue analysis in real tobacco samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02290318
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    Paper (German National Licenses)
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