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91 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, 7, p. 40-42, ISSN.1002-0861

    Determination of cellulose in tobacco with flow analyzer

    SHANG Jun(1); LÜ Xiangmin(1); WANG Peng(*1,2); HE Rong(1); WEN Peng(1); ZHOU Wei(1)
    (1) Chongqing Tobacco Industrial Co., Ltd., Chongqing 400060, P.R. China; (2) China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China
    A flow analysis method for determining the cellulose in tobacco was developed. Cellulose was hydrolyzed by cellulase and the formed glucose was determined by flow analyzer. The results showed that: 1) The optimal hydrolysis conditions were: tobacco powder ...
  8. Tobacco Science & Technology, 2012, 7, p. 46-49, ISSN.1002-0861

    Application of near infrared spectroscopic techniques in stability analysis of tobacco in processing

    DENG Fada(1); LI Dongliang(*1); WEN Ruoyu(1); LI Feiyu(2); SHI Fengcheng(1)
    (1) Technology R&D Center of China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; (2) Fuling Cigarette Factory of Chongqing Tobacco Industrial Co., Ltd., Fuling 408000, Chongqing, P.R. China
    In order to study the stability of chemical components in tobacco in processing, the near infrared (NIR) spectra of cut tobacco were online collected at the outlet of HXD drier and then processed by continuous wavelet transformation. The relationships ...
  9. Tobacco Science & Technology, 2012, 9, p. 58-62, ISSN.1002-0861

    Selective removal of hydrogen cyanide from cigarette smoke by combined filter of coptis alkaloid

    WU Jinfeng(1,2); LI Xuegang(1); WANG Peng(3); PENG Zhong(3); LAN Zhongyu(3); ZHENG Lifeng(2)
    (1) College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P.R. China; (2) Chongqing Cigarette Factory, Chongqing Tobacco Industrial Co., Ltd., China Tobacco Chuanyu Industrial Co., Ltd., Chongqing 400061, P.R. China; (3) Department of Technology, Chongqing Tobacco Industrial Co., Ltd., China Tobacco Chuanyu Industrial Co., Ltd., Chongqing 400060, P.R. China
    Coptis alkaloids were extracted from rhizome of Coptis chinensis rich in quaternary ammonium hydroxide and added into cigarette filter. On the basis of the reduction of hydrogen cyanide delivery in cigarette smoke, the way of coptis alkaloid adding into ...
  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, ...