<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Modified-wool cigarette filters have been evaluated for their efficiency in selectively retaining specific biologically active volatile and semivolatile smoke components. Filters containing chemically modified wools or wool treated with low-molecular-weight additives were ineffective. Polymeric additives reduced the cytotoxic level of cigarette smoke by varying degrees. Polyethylenimines were particularly effective additives and selectively removed portions of formaldehyde, acetaldehyde, acrolein, hydrogen cyanide, phenols and other weakly acidic compounds. Increasing the moisture content of the treated filters markedly improved their performance. The effectiveness of polyethyleniminetreated filters in removing volatile aldehydes was strongly dependent on the pH of the filter, most efficient removaI occurring at pH 6.0-6.2. </p></abstract>

Modified-wool cigarette filters have been evaluated for their efficiency in selectively retaining specific biologically active volatile and semivolatile smoke components. Filters containing chemically modified wools or wool treated with low-molecular-weight additives were ineffective. Polymeric additives reduced the cytotoxic level of cigarette smoke by varying degrees. Polyethylenimines were particularly effective additives and selectively removed portions of formaldehyde, acetaldehyde, acrolein, hydrogen cyanide, phenols and other weakly acidic compounds. Increasing the moisture content of the treated filters markedly improved their performance. The effectiveness of polyethyleniminetreated filters in removing volatile aldehydes was strongly dependent on the pH of the filter, most efficient removaI occurring at pH 6.0-6.2.

Wool Cigarette Filters Part II: Modifications to Promote the Selective Removal of Biologically Active Vapour Phase Components

CSIRO, Division of Textile Industry, Wool Research Laboratories, Belmont, Victoria, Australia

Contributions to Tobacco & Nicotine Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Modified-wool cigarette filters have been evaluated for their efficiency in selectively retaining specific biologically active volatile and semivolatile smoke...

Wool Cigarette Filters Part II: Modifications to Promote the Selective Removal of Biologically Active Vapour Phase Components

Pubblicato online: 14 ago 2014

Pagine: 314 - 320

Ricevuto: 18 lug 1975

DOI: https://doi.org/10.2478/cttr-2013-0394

© Beiträge zur Tabakforschung International

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.