| Autor: |
J.A. Giles, George W. Fulp, R.D. Hicks, William C. Hamlin, James E Bodnar, Dennis Michael Riggs, Edward J Nanni, Michael F. Borgerding |
| Rok vydání: |
1990 |
| Předmět: |
|
| Zdroj: |
Journal of AOAC INTERNATIONAL. 73:605-609 |
| ISSN: |
0004-5756 |
| DOI: |
10.1093/jaoac/73.4.605 |
| Popis: |
The design of a new cigarette that heats rather than burns tobacco calls for modifications to the Federal Trade Commission (FTC) method for analytical smoking. These changes Include eliminating sample conditioning at 75 °F and 60% RH, exercising greater care In lighting cigarettes, and smoking cigarettes to self-extinguishment rather than to a predetermined butt length as a measure of complete consumption. By several gross analytical measures, smoke condensate from the new cigarette differs substantially from that of tobacco-burning cigarettes. This Is Inferred from the lack of coloration of smoke condensate collected on Cambridge filters. Elemental analysis demonstrates reduced carbon and nitrogen content concurrent with Increased hydrogen. Thermogravlmetrlc analysis shows almost quantitative weight loss at Tmax = 220 °C. Ultraviolet (UV) spectrophotometrlc analysis shows greatly reduced levels of tobacco-derived smoke components and qualitative differences In chemical entitles being measured. By design, the heat required for smoke formation Is supplied by a carbon heat source embedded In the cigarette tip. Tobacco contained In the cigarette Is not burned and Is exposed to temperatures less than 300 °C. Thus, It Is apparent (1) that smoke from the new cigarette contains little or no "tar" as tar Is classically defined, and (2) that the FTC method even as modified to account for cigarette design differences Is appropriate only for determination of nicotine and carbon monoxide yielded from this cigarette. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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