An Easily Built Smoking Machine for Use by Undergraduate Students in the Determination of Total Particulate Matter and Nicotine in Tobacco Smoke

2012 ◽  
Vol 89 (6) ◽  
pp. 771-775 ◽  
Author(s):  
Víctor González-Ruiz ◽  
M. Antonia Martín ◽  
Ana I. Olives
Author(s):  
WS Schlotzhauer ◽  
RF Severson ◽  
RM Martin

AbstractSucrose esters, principally the 6-O-acetyl-2,3,4-tri-O-(3-methylvaleryl)-a-D-glucopyranosyl-b-D-fructofuran-oside isomer, isolated from the cuticular waxes of green T.I. 165 tobacco leaf, were evaluated as enhancers of 3-methylvaleric acid in the smoke of a tobacco deficient in this important flavor compound. Analyses of the products from semi-micro pyrolyses of sucrose and isolated sucrose esters, over a temperature range of 250°C - 850°C, showed that free sucrose produced 5-hydroxy-methylfurfural as the major component, whereas the ester isolate yielded 3-methylvaleric acid and lesser amounts of isomeric C4 and C5 aliphatic acids. Incorporation of sucrose ester isolate of T.I. 165 leaf into cigarettes prepared from flue-cured NC 2326 tobacco, the smoke of which is essentially devoid of 3-methylvaleric acid, resulted in a total particulate matter with enhanced levels of this compound. The data indicated that addition of approximately 2 mg of sucrose ester isolate per cigarette produced levels of 3-methylvaleric acid in the smoke of NC 2326 cigarettes that were comparable to levels observed in the smoke from cigarettes containing all T.I. 165 or blended Turkish tobacco.


1962 ◽  
Vol 45 (3) ◽  
pp. 540-545
Author(s):  
C L Ogg ◽  
W W Bates ◽  
E C Cogbill ◽  
R H Blackmore ◽  
E L Petersen

Author(s):  
S Moldoveanu ◽  
W III Coleman ◽  
J Wilkins

AbstractThis study describes the results regarding the evaluation of retention efficiency by humans of benzene and toluene from cigarette smoke. The evaluated cigarette was a common commercial cigarette with 10.6 mg ‘tar’ [U.S. Federal Trade Commission (FTC) ‘tar’ is defined as the weight of total particulate matter minus nicotine and water]. The test was performed on ten subjects. The exhaled smoke was collected using a vacuum assisted technique that avoids strain in exhaling the smoke. The study showed that benzene was retained at levels of 89% to 98%, and toluene was retained at similar levels, between 87% and 99%. The lower limits of retention for both benzene and toluene are unexpectedly low compared to the retention of bi-and tricyclic aromatic hydrocarbons, which have retentions from cigarette smoke above 95%. This is probably caused by the fact that monocyclic aromatic hydrocarbons are present practically only in the vapor phase of cigarette smoke and at considerably higher levels than bi- and tri-cyclic aromatic hydrocarbons which are present almost completely in the particulate phase of cigarette smoke.


2022 ◽  
Vol 158 ◽  
pp. 106992
Author(s):  
Noel J. Aquilina ◽  
Christopher M. Havel ◽  
Roy M. Harrison ◽  
Kin-Fai Ho ◽  
Neal L. Benowitz ◽  
...  

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