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16 results

  1. TSRC, Tob. Sci. Res. Conf., 2017, 71, abstr. 106

    A study to examine changes in exposure to cigarette smoke chemicals when a smoker switches to using a tobacco heating product. Part I: study design

    GALE N.(1); McEWAN M.(1); ELDRIDGE A.(1); CAMACHO O.M.(1); McAUGHEY J.(1); MURPHY J.(1); LIU C.(1); PROCTOR C.J.(1); FEARON I.M.(1); SHERWOOD N.(2); BOWEN E.(3); McDERMOTT S.(3); HOLMES E.(3)
    (1) British American Tobacco (Investments) Ltd, Southampton, UK; (2) Neil Sherwood Consulting, Commugny, Switzerland; (3) Covance, Leeds, UK
    A tobacco heating product (THP), glo™, which heats rather than combusts tobacco and produces significantly reduced machine yields of chemical toxicants compared to combustible cigarettes, was assessed in this study. Biomarker of exposure (BoE)...
  2. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 83

    Steady-state and transient effective density of cigarette smoke

    CABOT R.(1); JOHNSON T.J.(2); OLFERT J.S.(2); YURTERI C.Ü.(1); McAUGHEY J.(1)
    (1) British American Tobacco, Group R&D, Southampton, U.K.; (2) University of Alberta, Department of Mechanical Engineering, Edmonton, Canada
    Effective particle density is an important aerosol characteristic and relates a particle’s mobility diameter to its mass; an understanding of both properties is important to model impaction and settling losses, such as in human lung deposition. The...
  3. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 09

    Is the 44 mm Cambridge filter pad suitable for trapping total particulate matter under ISO and Health Canada Intensive regimes?

    DRAKE L.; COCKAYNE L.; McADAM K.G.; McAUGHEY J.
    British American Tobacco, Group R&D, Southampton, UK
    Cambridge filter pads (CFP) are used for the collection of total particulate matter (TPM) in cigarette smoke and ISO standard 4387:2000 suggests a TPM limit of 150 mg per 44 mm CFP. Machine smoke yields of current cigarettes are much lower than...
  4. TSRC, Tob. Sci. Res. Conf., 2012, 66, abstr. 62

    The quantitative estimation of toxicant dose to cigarette smokers

    ST. CHARLES F.K.(1); MCAUGHEY J.(2); SHEPPERD J.(2)
    (1) St. Charles Consultancy, Winston Salem, NC, USA; (2) British American Tobacco (Investments) Limited, Southampton, UK
    For the risk assessment of cigarette smoke, a reliable estimate of the mass of chemical compounds retained in the body would be beneficial. Filter studies provide estimates of mouth exposure to compounds in cigarette smoke, but do not account for...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 26

    Nicotine particle / gas phase distribution trends: denuder tube studies

    JOHN E.(1); LIU C.(1); McAUGHEY J.(1); MARINER D.(1); McADAM K.G.(1); DOBE S.(2); SEBESTYEN Z.(2); BAKOS I.(2)
    (1) British American Tobacco, Group R&D, Southampton, UK; (2) Chemical Research Center, Hungarian Academy of Sciences, Budapest, Hungary
    Mainstream cigarette smoke comprises a complex dynamic mixture of many thousand substances resulting from the incomplete combustion of tobacco. Substances may be distributed within the gas and / or particle phases of smoke. A specific substance, such...
  6. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, STPOST 09

    Validity of the 44 mm Cambridge Filter Pad for trapping Total Particulate Matter in excess of 150 mg

    DRAKE L.; McADAM K.G.; McAUGHEY J.
    British American Tobacco, GR&D, Southampton, UK
    Current ISO smoking standards limit the maximum quantity of Total Particulate Matter (TPM) that should be trapped on a 44 mm Cambridge Filter Pad (CFP) to 150 mg. When smoke methods were first developed in the 1950s, cigarettes had smoke yields much...
  7. CORESTA Meeting, Smoke Science/Product Technology, Jeju, 2007, SSPT 18

    Puff profile simulator for tobacco smoke particle diameter and mass measurement

    McAUGHEY J.; REAVELL K.; ROST B.; McGRATH C.; DAILLY C.
    British American Tobacco, Group R&D, Southampton, UK
    This paper describes a system for cigarette testing measuring fresh TPM (total particulate material) mass, median particle diameter, and particle number concentration, with any desired flow profile. This allows measurements at conditions...
  8. CORESTA Meeting, Smoke Science/Product Technology, Jeju, 2007, SSPT 19

    Simultaneous on-line analysis of gas phase and particulate phase of cigarette mainstream smoke

    ADAM T.; McAUGHEY J.; MITSCHKE S.; McGRATH C.; MOCKER C.; ZIMMERMANN R.
    University of Augsburg, Analytical Chemistry, Institute of Physics, Augsburg, Germany
    Tobacco smoke is a complex and dynamic matrix consisting of gaseous and particulate material, in which about 4800 constituents have been identified. The chemical composition and partition between phases of the smoke can change continuously and is...