Search Results

7 results

  1. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 38

    Analysis of TSNAs in nicotine used as a component in e-liquids

    MOLDOVEANU S.(1); ZHU J.(2); QIAN N.(2)
    (1) R.J. Reynolds Tobacco Co.; (2) Eurofins Lancaster Labs. Inc., Winston-Salem, NC, USA
    Purified nicotine is a component of the e-liquids used in electronic cigarettes. This nicotine is typically obtained from tobacco; thus, in addition to nicotine, it contains minor alkaloids and possibly trace levels of TSNAs. The analysis of TSNAs in pure ...
  2. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 73

    A versatile method for the analysis of tsnas in tobacco products and cigarette smoke by LC-MS-MS

    ZHU J.(1); QIAN N.(1); JONES S.(1); MOLDOVEANU S.C.(2)
    (1) Eurofins Lancaster Laboratories, Winston Salem, North Carolina, USA; (2) R.J. Reynolds Tobacco Company, Winston-Salem, North Carolina, USA
    A versatile method for the analysis of TSNAs has been applied to different tobacco sample matrices such as tobacco filler, smokeless and raw tobacco materials, as well as cigarette smoke. The method used an HPLC separation on a Phenomenex Gemini C18 ...
  3. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 29

    Analysis of free amino acids in tobacco, and validation on the Agilent 6490 LC-MS-MS system

    ZHU J.(1); QIAN N.(1); WILKINS J.(1); MOLDOVEANU S.C.(2)
    (1) Eurofins Lancaster Laboratories, Winston Salem, North Carolina, USA; (2) R.J. Reynolds Tobacco Company, Winston-Salem, North Carolina, USA
    The present study describes a number of improvements and changes performed on a LC-MS-MS method for the analysis of amino acids in tobacco which was initially developed using an Agilent 1200 HPLC and a Sciex API 5000 MS-MS, and has been previously ...
  4. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 38

    Analysis of free amino acids in tobacco with a new LC/MS/MS procedure

    MOLDOVENAU S.C.(1); ZHU J.(2)
    (1) R.J. Reynolds Tobacco Company, Winston-Salem, North Carolina, USA; (2) Lancaster Labs. Inc., Winston-Salem, North Carolina, USA
    The levels of amino acids in tobacco are important for leaf characterization. They contribute substantially to the level of toxicants in cigarette smoke, and to the sensory properties of cigarettes. The analysis of amino acids in tobacco leaf has been ...