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82 results

  1. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, STPOST 18 (also presented at TSRC 2019)

    Comparison of a flame ionization detector (GC/FID) to a nitrogen-phosphorus detector (GC/NPD) for gas chromatographic determination of nicotine in conventional and ultra-low nicotine tobacco blends

    STINSON A.; STEELMAN D.; CLARK T.J.
    Liggett Group LLC, 100 Maple Lane Mebane NC, U.S.A.
    The established CORESTA method to determine nicotine in tobacco uses a gas chromatograph coupled with a flame ionization detector (GC/FID) (CRM 62) that uses mass spectrometry (GC/MS) (CRM 87). These methods were developed to evaluate conventional tobacco ...
  2. TSRC, Tob. Sci. Res. Conf., 2019, 73, abstr. 034 (also presented at CORESTA SSPT2019)

    Comparison of a flame ionization detector (GC/FID) to a nitrogen-phosphorus detector (GC/NPD) for gas chromatographic determination of nicotine in conventional and ultra-low nicotine tobacco blends

    STEELMAN D.; STINSON A.; CLARK T.J.
    Liggett Group, Mebane, NC, USA
    The established CORESTA method to determine nicotine in tobacco uses a gas chromatograph coupled with a flame ionization detector (GC/FID) (CRM 62) or that uses a mass spectrometer (GC/MS) (CRM 87). These methods were developed to evaluate conventional ...
  3. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, STPOST 40 (also presented at TSRC 2017)

    A comparison of two different extraction methods for aromatic amines in mainstream smoke using gas chromatography-tandem mass spectrometry (GC/QQQ)

    STINSON A.(1); GILLILAND S.(1); HUCKINS A.(1); GILLMAN I.G.(2); BROWN S.S.(2); STEELMAN D.(1)
    (1) Liggett Group LLC, Mebane, NC, U.S.A.; (2) Enthalpy Analytical Inc., Durham, NC, U.S.A.
    The established GC-MS methods for the analysis of aromatic amines (o-Anisidine, o-Toluidine, 2,6-Dimethylaniline, 1-Aminonaphthalene, 2-Aminonaphthalene, and 4-Aminobiphenyl) involve complex sample preparation and analyzing the samples on a gas ...
  4. TSRC, Tob. Sci. Res. Conf., 2017, 71, abstr. 048 (also presented at CORESTA SSPT2017)

    A comparison of two different extraction methods for aromatic amines in mainstream smoke using gas chromatography-tandem mass spectrometry (GC/QQQ)

    STINSON A.(1); GILLILAND S.(1); HUCKINS A.(1); BROWN S.S.(2); GILLMAN I.G.(2)
    (1) Liggett Group, Mebane, NC, USA; (2) Enthalpy Analytical, Durham, NC, USA
    The established GC-MS methods for the analysis of aromatic amines (o Anisidine, o Toluidine, 2, 6 Dimethylaniline, 1 Aminonaphthalene, 2 Aminonaphthalene, and 4 Aminobiphenyl) involve complex sample preparation and analyzing the samples on a gas ...
  5. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 22

    The determination and comparison of ammonia content in tobacco products by ion chromatography and continuous flow analysis

    STINSON A.(1); GILLILAND S.(1); PAOLANTONIO A.M.(2); LOCKHART T.D.(2); GILLMAN I.G.(2)
    (1) Liggett Group LLC, Mebane, North Carolina, USA; (2) Enthalpy Analytical Inc., Durham, North Carolina, USA
    The FDA Center for Tobacco Products (CTP) has identified ammonia as a harmful or potentially harmful constituent (HPHC) in tobacco and tobacco products. However, there is currently not a single, generally accepted method for the determination of ammonia ...
  6. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 25

    The determination and comparison of hydrogen cyanide (HCN) levels in the mainstream smoke of three reference cigarettes using three different analytical techniques to understand differences and variability between methods

    STINSON A.(1); WHITEHEAD B.(1); TEWOLDE A.(1); PAOLANTONIO A.M.(2); ALVAREZ E.T.(2); GILLMAN I.G.(2)
    (1) Liggett Group LLC, Mebane, North Carolina, USA; (2) Enthalpy Analytical Inc., Durham, North Carolina, USA
    The FDA Center for Tobacco Products has identified hydrogen cyanide (HCN) as a harmful and potentially harmful constituent (HPHCs) in tobacco smoke. Currently there is no internationally accepted method for the analysis of hydrogen cyanide but at least ...
  7. Tobacco Science & Technology, 2012, 8, p. 54-59, 65, ISSN.1002-0861

    Correlation analysis between nicotine content and medium and trace element contents in flue-cured tobacco leaves from different stalk positions

    CHEN Wei(1); TANG Yuanju(1); PAN Wenjie(1); LI Zhiyong(*2)
    (1) Guizhou Tobacco Research Institute, Guiyang 550081, P.R. China; (2) Guizhou Provincial Tobacco Company, Guiyang 550003, P.R. China
    The relationships between nicotine content and the contents of medium and trace elements in flue-cured tobacco leaves from different stalk positions were analyzed with descriptive statistics analysis, stepwise regression analysis and path analysis. The ...
  8. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, APOST 05

    Cloning and gene structure analysis of T-psy1 from flue-cured tobacco

    CAI Liuti(1); HU Zhongyi(1); LEI Lu(1); LI Jixin(2)
    (1) Guizhou Tobacco Research Institute, Guizhou Provincial Tobacco Company, Guiyang, P.R China; (2) Guizhou Provincial Tobacco Company, Guiyang, P.R China
    Carotenoid is an important precursor of tobacco aroma, and phytoene synthase is one of the key enzymes in the pathway of aroma precursors biosynthesis and accumulation in tobacco. Based on the homology cloning method, the cDNA and DNA sequence of the ...
  9. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, APOST 07

    Comparative transcriptome of tobacco leaves in typical ecological areas of Guizhou

    LEI Bo(1); PAN Wenjie(1); DING Fuzhang(1); ZHANG Kai(2); LI Jinxin(3); LU Ku(2)
    (1) Guizhou Tobacco Research Institute, Guiyang, P.R China; (2) College of Agronomy and Biotechnology, Southwest University, Chongqing, P.R China; (3) Guizhou Provincial Tobacco Company, Guiyang, P.R China
    Flue-cured tobacco (Nicotiana tabacum) is a sensitive crop to ecological environment, and distinctive tobacco has always formed under special ecological conditions. In order to investigate the molecular mechanism of formation of medium and light aroma ...
  10. Tobacco Science & Technology, 2011, 11, p. 76-78., ISSN.1002-0861

    Orientation of Aphidius gifuensis ashemed to tobacco and prey combination affected by insecticides

    SONG XU-MING(1); ZHANG YUE(2); QU AI-JUN(2)
    1. Anqiu Branch of Shandong Weifang Tobacco Co. Ltd., Aniqiu 262100, Shandong, P.R. China; 2. Plant Protection College, Shandong Agricultural University, Taian 271000, Shandong, P.R. China
    The orientation of Aphidius gifuensis Ashemed to tobacco and prey combinations affected by insecticides was investigated with Y-tube olfactometer. The results showed that normal tobacco leaves did not produce plant volatiles attractive to A. gifuensis, ...