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  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, 2012, 10, p. 65-67, ISSN.1002-0861

    Determination of available potassium in tobacco planting soil by Flame Atomic Absorption Spectrometry

    YANG Xiaoqiu(1); WANG Jian(2); WANG Lin(2); YU Yongjie(1); WANG Xin(1)
    (1) Faculty of Chemistry and Environmental Engineering, Jianghan University, Wuhan 430056, P.R. China; (2) China Tobacco Hubei Industrial Co., Ltd., Wuhan 430051, P.R. China
    A convenient and fast method for determining available potassium in tobacco planting soil with flame atomic absorption spectrometry was developed, in which available potassium was extracted from soil samples with 1 mol/L ammonium acetate. The results...
  3. Tobacco Science & Technology, 2012, 11, p. 20-22, 25, ISSN.1002-0861

    Improvement of moisture content control system in HAUNI ordering cylinder

    DONG Wei; LI Kun; WANG Jian; ZHAO Yu; YAN Junmin
    Xuzhou Cigarette Factory, China Tobacco Jiangsu Industrial Co., Ltd., Xuzhou 221005, Jiangsu, P.R. China
    In order to minimized the fluctuation of output moisture content in tobacco, the control system in HAUNI’s ordering cylinder was modified as follows: 1) a closed loop control system was designed for the output end of the cylinder, to feed the value...
  4. 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...
  5. 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...
  6. 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...
  7. CORESTA Meeting, Smoke Science/Product Technology, Stratford-upon-Avon, 2005, SSPTPOST 14

    Determination of HCN content in mainstream cigarette smoke using constant flow analyzer-new indication reaction and better performance

    ZHOU Yu; CAO Jihong; WANG Jian; YANG Huawu
    Changsha Technology Center of CNTC, Changsha, Hunan, China.
    Isonicotinic acid and 1,3-dimethyl barbituric acid were applied as the indication reagents for the determination of HCN content in mainstream smoke using constant flow analyzer (CFA). The recovery rate of HCN was above 99% and the relation...