ERIC Number: EJ899599
Record Type: Journal
Publication Date: 2010
Abstractor: As Provided
Reference Count: 12
Quantification of Nicotine in Commercial Brand Cigarettes: How Much Is Inhaled by the Smoker?
Vieira, Carlos A.; de Paiva, Sabina A. A.; Funai, Milena N. S.; Bergamaschi, Mateus M.; Queiroz, Regina H. C.; Giglio, Jose R.
Biochemistry and Molecular Biology Education, v38 n5 p330-334 Sep-Oct 2010
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.)
Descriptors: Chemistry, Smoking, Science Experiments, Science Instruction, Critical Thinking, College Science, Measurement Equipment, Scientific Principles
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Authoring Institution: N/A