Search Results

19 results

  1. TSRC, Tob. Sci. Res. Conf., 2018, 72, abstr. 013

    Method development for pH analysis of ends aerosol and e-liquid

    HEFNER T.(1); ST. CHARLES F.K.(2); ANDERSON J.(3)
    (1) R.J. Reynolds Tobacco Company, Winston Salem, NC, USA; (2) St.Charles Consultancy, Winston Salem, NC, USA; (3) Eurofins Lancaster Labs, Winston Salem, NC, USA
    E-liquids are hygroscopic, non-aqueous liquids containing a small amount of water (~3-15%). When the pH of a non-aqueous liquid is measured using conventional methods and calibration buffers, the value can only be regarded as an "apparent pH". ...
  2. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, ST 35

    Development of a method for trace level analysis in the aerosol from a novel tobacco vaporiser

    MASUGI E.(1); SASAMOTO K.(2); OCHIAI N.(2); DAVID F.(3); SANDRA P.(3)
    (1) Japan Tobacco Inc. Tobacco Science Research Center, Yokohama, Kanagawa, Japan; (2) GERSTEL K.K., Tokyo, Japan; (3) Research Institute for Chromatography, Kortrijk, Belgium
    In some markets, a variety of tobacco vaporisers is commercially available. One of the characteristics of tobacco vaporisers is that the generated aerosol contains a lower number of combustion-derived chemicals due to the particular heating system which ...
  3. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 77

    A robust method for evaluating the pH of e-liquids

    ST. CHARLES F.K.(1); MOLDOVEANU S.(2); SCOTT W.(2)
    (1) St. Charles Consultancy, Lewisville, NC, USA; (2) R.J. Reynolds Tobacco Co., Winston-Salem, NC, USA
    The measurement of pH is one of the simplest and most common analytical methods practiced in the laboratory. The pH-meter is calibrated using certified buffers, the electrode is placed in the solution, and if a reading is obtained, the value is used. In ...
  4. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, ST 36

    Comprehensive analysis of proteins in tobacco leaf

    MASUGI E.(1); ORTIZ A.(2); YOSHIMURA Y.(1); MITSUI K.(1); DAVID F.(2); SANDRA P.(2); SANDRA K.(2)
    (1) Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan; (2) Research Institute for Chromatography, Kortrijk, Belgium
    In the last two decades, proteomics has been a vastly expanding field of research. Proteomics aims at the comprehensive and comparative measurement of the proteins present in a sample, e.g. plants. Major developments in separation and analytical sciences ...
  5. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 14

    Water pipe tobacco smoking – from the first idea to an international standard

    HAHN J.(1); ROSE N.(2)
    (1) Chemisches und Veterinäruntersuchungsamt Sigmaringen, Sigmaringen, Germany; (2) Borgwaldt KC GmbH, Hamburg, Germany
    The presentation is divided into two parts: The first part concerns the requirement for a standardised method in general. It points out the reasons why the German national standardisation body DIN initialised the project within the ISO/TC 126. It also ...
  6. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 45

    Comprehensive analysis of lipid compounds in tobacco leaf

    MASUGI E.(1); DUNKLE M.(2); t'KINT R.(2); MITSUI M.(1); OCHIAI N.(3); DAVID F.(2); SANDRA K.(2); SANDRA P.(2)
    (1) Japan Tobacco Inc. Tobacco Science Research Center, Yokohama, Kanagawa, Japan; (2) Research Institute for Chromatography, Kortrijk, Belgium; (3) GERSTEL K.K., Tokyo, Japan
    In recent years, lipidomics has been a vastly expanding field of research due to the development of new technologies in liquid chromatography and from recognising the role of lipids in metabolism. Tobacco leaf consists of thousands of chemical compounds ...
  7. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 40

    Nicotine activity in tobacco

    ST.CHARLES F.K.(1); MOLDOVEANU S.C.(2)
    (1) St. Charles Consultancy, Lewisville, North Carolina, USA; (2) R.J. Reynolds Tobacco Company, Winston-Salem, North Carolina, USA
    The vapor pressure of pure nicotine has been reported in the literature. However, to the best of our knowledge, measurements of the vapor pressure of nicotine from tobacco have not been reported. Nicotine migration from tobacco to cigarette filters during ...
  8. CORESTA Meeting, Smoke Science/Product Technology, 2013, Seville, ST 30

    Application of multidimensional GC in combination with tandem mass spectrometry and accurate mass detection for identification of sulphur compounds in tobacco smoke extract

    MITSUI K.(1); YOSHIMURA Y.(1); OCHIAI N.(2); SASAMOTO K.(2); NAGATA H.(1); DAVID F.(3); SANDRA P.(3)
    (1) Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Japan; (2) Gerstel K.K., Tokyo, Japan; (3) Research Institute for Chromatography, Kortrijk, Belgium
    Tobacco smoke is a highly complex mixture of a wide variety of chemical compounds including sulphur-containing compounds which are present at very low concentrations and have low odour thresholds. From past studies, it is well known that required ...
  9. TSRC, Tob. Sci. Res. Conf., 2013, 67, abstr. 38

    The migration during storage, transfer to smoke, and filtration efficiency of nicotine, glycerin, and propylene glycol in cigarettes.

    ST. CHARLES F.K.(1); MOLDOVEANU S.C.(2); MILLS H.D.(2); ANDRESEN N.P.(2)
    (1) St.Charles Consultancy, Winston-Salem, NC, USA; (2) R.J. Reynolds Tobacco Co., Winston Salem, NC, USA
    This study evaluated the migration during storage, transfer to smoke and filtration of nicotine, glycerin and propylene glycol (PG) for cigarettes with cellulose acetate/triacetin filters. Filtration efficiency (FE) and smoke yields were studied for two ...