dc.creator | VIEIRA, Carlos A. | |
dc.creator | PAIVA, Sabina A. A. de | |
dc.creator | FUNAI, Milena N. S. | |
dc.creator | BERGAMASCHI, Mateus M. | |
dc.creator | QUEIROZ, Regina H. C. | |
dc.creator | GIGLIO, Jose R. | |
dc.date.accessioned | 2012-10-19T23:46:03Z | |
dc.date.accessioned | 2018-07-04T15:20:48Z | |
dc.date.available | 2012-10-19T23:46:03Z | |
dc.date.available | 2018-07-04T15:20:48Z | |
dc.date.created | 2012-10-19T23:46:03Z | |
dc.date.issued | 2010 | |
dc.identifier | BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION, v.38, n.5, p.330-334, 2010 | |
dc.identifier | 1470-8175 | |
dc.identifier | http://producao.usp.br/handle/BDPI/25146 | |
dc.identifier | 10.1002/bmb.20420 | |
dc.identifier | http://dx.doi.org/10.1002/bmb.20420 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1621872 | |
dc.description.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. | |
dc.language | eng | |
dc.publisher | JOHN WILEY & SONS INC | |
dc.relation | Biochemistry and Molecular Biology Education | |
dc.rights | Copyright JOHN WILEY & SONS INC | |
dc.rights | restrictedAccess | |
dc.subject | Nicotine | |
dc.subject | tobacco | |
dc.subject | acid-base titration | |
dc.subject | HPLC | |
dc.title | Quantification of Nicotine in Commercial Brand Cigarettes HOW MUCH IS INHALED BY THE SMOKER? | |
dc.type | Artículos de revistas | |