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  • 1
    ISSN: 1430-4171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Supercritical fluid extraction (SFE) is a technique for sample preparation that is quickly replacing Soxhlet extraction and ultrasonic extraction. This manuscript introduces two real-world applications of SFE that serve as the basis of undergraduate laboratory experiments: the analysis of caffeine in ground coffee and nicotine in cigarette tobacco. The extracts are analyzed with gas chromatography-mass spectrometry (GC-MS). The experiments are presented in a discovery fashion that enables students to develop a theoretical understanding of the role of intermolecular forces in the extraction process. The focus on theoretical aspects of SFE makes these experiments appropriate for analytical and physical chemistry labs.
    Type of Medium: Electronic Resource
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