Quantification of Nicotine in Commercial Brand Cigarettes: How Much Is Inhaled by the Smoker?

Autor/inn/en	Vieira, Carlos A.; de Paiva, Sabina A. A.; Funai, Milena N. S.; Bergamaschi, Mateus M.; Queiroz, Regina H. C.; Giglio, Jose R.
Titel	Quantification of Nicotine in Commercial Brand Cigarettes: How Much Is Inhaled by the Smoker?
Quelle	In: Biochemistry and Molecular Biology Education, 38 (2010) 5, S.330-334 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1470-8175
DOI	10.1002/bmb.20420
Schlagwörter	Chemistry; Smoking; Science Experiments; Science Instruction; Critical Thinking; College Science; Measurement Equipment; Scientific Principles + Suchen Sie Ihr Suchwort? Chemie; Rauchen; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Kritisches Denken; Messinstrument
Abstract	The main objective of this experiment is to determine the amount of nicotine in commercial brand cigarettes by means of a nonaqueous acid-base titration. A simple glass device simulating a smoker is proposed, which allows the determination of the volatilized, filter retained, and inhaled portions. Students will readily see that the amount of nicotine/cigarette stated on the label (similar to 0.5-1.0 mg) refers indeed to the inhaled portion only, rather than to the total amount/cigarette (usually more than 10 mg). Even so, values for inhaled nicotine may be significantly higher than those reported for several brands. Students will also be able to make a critical evaluation of the true content of nicotine in the inhaled portion and confront it with the reported value for a given brand. In addition, the theoretical approach, supported by HPLC data, provides an excellent experience on nonaqueous acid-base volumetric analysis. (Contains 4 figures and 2 tables.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10