Search Results

131 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, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 53

    Interactions between tobacco bushy top virus and its satellite RNA

    MO Xiaohan(1); ZHANG Lifang(1,2); ZHAO Xingneng(1,2); XU Ping(1,2); LI Yanqiong(1,2); XIA Zhenyuan(1); QIN Xiyun(1); CHEN Hairu(2)
    (1) Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China; (2) College of Plant Protection, Yunnan Agricultural University, Kunming, P.R. China
    Tobacco bushy top disease (TBTD) has caused significant yield and economic losses in Yunnan Province, China. The disease is caused by an unique virus complex consisting of tobacco bushy top virus (TBTV), TBTV satellite RNA, tobacco vein distorting virus, ...
  4. 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 ...
  5. 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 ...
  6. TSRC, Tob. Sci. Res. Conf., 2017, 71, abstr. 123

    The regulation of microorganism on the formation of TSNAs in tobacco

    ZOU Congming; XIA Zhenyuan; LEI Liping; HUANG Wei; ZHAO Gaokun; JIN Yan; WU Qun
    Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
    TSNAs in tobacco are directly approved to be the carcinogens which is getting more and more attention than before. The regulation of TSNAs is becoming one of the most important topics of tobacco harm reduction. It has been shown that TSNAs formation is ...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 03

    The interactions between tobacco vein distorting virus and tobacco bushy top disease-associated RNA

    MO Xiaohan; XU Ping; ZHAO Xingneng; ZHANG Lifang; QIN Xiyun; XIA Zhenyuan
    Yunnan Academy of Tobacco Agricultural Sciences of CNTC, Kunming, Yunnan, P.R. China
    Tobacco bushy top disease is the only plant viral disease caused by the umbravirus/luteovirus complex so far in China, resulting in significant economic losses in tobacco production in the Yunnan Province of China. Tobacco bushy top disease complex is the ...
  8. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 41

    Effects of different growth temperatures on alkaloid content and nicotine metabolism in roots, stems and leaves of tobacco (Nicotiana tabacum L.) plants

    JIN Y.F.(1); WANG S.S.(1); LI J.Y.(2); PANG T.(2); ZHANG J.B.(1); GONG M.(1)
    (1) School of Life Sciences, Yunnan Normal University, Kunming, P.R. China; (2) Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China
    Alkaloids, especially nicotine content, significantly influences quality and flavour types of tobacco leaves, which is differentially regulated by various environmental conditions. To investigate the effects of different growth temperature on alkaloids ...
  9. 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 ...
  10. CORESTA Congress, Quebec, 2014, Agronomy/Phytopathology Groups, AP 20

    Comparison of transcriptomes and gene expression profiles of two chilling- and drought-tolerant and intolerant Nicotiana tabacum varieties under low temperature and drought stress

    HAO D.H.(1); MA W.G.(2); SHENG Y.L.(1); ZHANG J.B.(1); JIN Y.F.(1); YANG H.Q.(1); LI Z.G.(1); WANG S.S.(1); GONG M.(1)
    (1) Yunnan Normal University, School of Life Sciences, Kunming, P.R. China; (2) Yunnan Academy of Tobacco Agricultural Sciences, Kunming, P.R. China
    Tobacco plants often encounter chilling and water scarcity conditions when grown in spring and early summer, leading to retarded growth and developmental abnormalities. The purpose of this study was to investigate comprehensive molecular mechanisms of ...