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4 results

  1. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 56

    Photoionization time-of-flight mass spectrometry as a tool for the identification of selected isomers in the gas phase of mainstream cigarette smoke

    HU Yonghua(1); WANG Jian(1); TIAN Zhenfeng(1); CHEN Kaibo(1); XU Yingbo(1); PAN Yang(2)
    (1) Technology Center, China Tobacco Anhui Industrial Co., Ltd., Hefei, Anhui, P.R. China; (2) National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, P.R. China
    To identify selected isomers in the gas phase of mainstream cigarette smoke, an on-line measurement system with a photoionization unit was built. With this instrument, photoionization efficiency (PIE) curves for constituents in the gas phase of...
  2. Tobacco Science & Technology, 2011, 12, p. 26-33., ISSN.1002-0861

    Calculation of ionization energy of cigarette smoke component and its applications in qualitative analysis

    WANG CHENG-HUI(1); HU YONG-HUA(1); WANG JIAN(2); XU YING-BO(1); PAN YANG(2)
    1. Technology Center, China Tobacco Anhui Industrial Co., Ltd., Hefei 230088, P.R. China; 2. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
    : In order to systemically evaluate the reliability of the method of predicting ionization energy with density functional method in quantum chemistry [B3LYP/6-311++G(d,p)] and composite ab initio (G3B3), 70 chemical portions of known ionization...
  3. Tobacco Science & Technology, 2009, 6, p. 56-9, ISSN.1002-0861

    Effects of temperature, humidity, and duration of yellowing stage on respiration rate and chemistry of upper leaves

    ZHANG XIAO-YUAN; BI QING-WEN; WANG JIAN
    Henan Agricultural University, National Tobacco Cultivate Physiology and Biochemistry Research Centre, Zhengzhou, China.
    The effects of the temperature, humidity and duration of yellowing stage during flue-curing on the respiration rate of and the contents of routine chemical components and neutral aromatic components in upper leaves were studied. The results showed...
  4. CORESTA Meeting, Smoke Science/Product Technology, Stratford-upon-Avon, 2005, SSPT 10

    Analysis of saccharide in tobacco by High Performance Liquid Chromatography with Evaporative Light Scattering Detection

    WANG Mingfeng; WANG Haitao; WANG Jian; FAN Duoqing; FENG Lei
    Kunming Cigarette Factory, Technical Center, Kunming, China.
    A high performance liquid chromatographic method (HPLC) with evaporative light scattering detection (ELSD) for the determination of saccharide in tobacco was developed. Two of monosaccharide: glucose, fructose and two of disaccharide: sucrose and...