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38 results

  1. Tobacco Science & Technology, 2012, 10, p. 51-55, ISSN.1002-0861

    Differences between and cluster analysis of heavy metal contents in tobacco leaves from ten tobacco producing provinces in China

    ZHANG Xiaojing(1); QIN Cunyong(2); ZHU Fengpeng(3); CHEN Weihua(1); HU Qingyuan(*3)
    (1) Technology Center, China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang 050051, P.R. China; (2) Hebei Baisha Tobacco Co., Ltd., Shijiazhuang 050035, P.R. China; (3) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    The comparison and cluster analysis of Cr, Ni, Cu, As, Cd, Tl and Pb contents in 100 samples of flue-cured tobacco leaves from 100 areas in 10 provinces of China were conducted for investigating the content and distribution of heavy metals in flue-cured ...
  2. Tobacco Science & Technology, 2012, 2, p. 29-32., ISSN.1002-0861

    Determination of benzo[a]pyrene in mainstream cigarette smoke by HPLC

    CHENG Qian(1); ZHANG Hongfei(2); HOU Hongwei(2); HU Qingyuan(2); TANG Gangling(2)
    (1) Technology Centre of China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang 050051, P.R. China; (2) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    A high performance liquid chromatography with fluorescence detection for determining the benzo[a]pyrene in mainstream cigarette smoke was developed. The extraction, clean up with Florisil and chromatographic conditions were tested. The Kentucky reference ...
  3. Tobacco Science & Technology, 2011, 10, p. 39-43., ISSN.1002-0861

    Determination of total sulfur in tobacco with microwave digestion-ion chromatography

    HAO HONG-LING; HE AI-MIN; SU GUO-SUI
    Technology Center of China Tobacco Hebei Industrial Corporation, Shijiazhuang 050051, P.R. China
    In order to determine the content of total sulfur in tobacco with ion chromatography, the total sulfur in tobacco was converted into sulfate by microwave digestion treatment, and the digestion and acid removal conditions were investigated. The proposed ...
  4. Tobacco Science & Technology, 2011, 9, p. 61-64., ISSN.1002-0861

    Qualitative analysis of heterocyclic hydrocarbons in cigarette smoke with heart-cutting two-dimensional GC/MS

    ZHANG YAN-FANG(1); XIE FU-WEI(2); HUANG QI(3); SU GUO-SUI(1); YANG YUN-HONG(1); CHEN WEI-HUA(1)
    1. Technology Center of China Tobacco Hebei Industrial Corporation, Shijiazhuang 050051, P.R. China2. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China3. Heilongjiang Tobacco Industrial Co., Ltd., Harbin 150001, P.R. China
    A method for determining heterocyclic hydrocarbons in cigarette smoke through extraction with dichloromethane, clean-up with basic alumina SPE column, and qualitative analysis by GC/MS with heart-cutting two-dimensional columns was developed and compared ...
  5. Tobacco Science & Technology, 2010, 8, p. 5-9., ISSN.1002-0861

    Dynamic analysis of strips humidifying process based on diffusion model

    ZHENG SONG-JIN(1,2); LI BIN(1); WANG HONG-SHENG(1); SU HONG-JUN(2)
    1. Key Laboratory of Tobacco Processing Technology, CNTC, Zhengzhou 450001, P.R. China; 2. Technology Center of China Tobacco Hebei Industrial Corporation, Shijiazhuang 050051, P.R. China
    In order to study the absorption of strips and the migration rate of moisture in strips during processing, B2F strips were studied dynamically under a temperature range of 60-80 °C and relative humidity range of 60%-90% by an online device on the ...
  6. Tobacco Science & Technology, 2010, 9, p. 5-9., ISSN.1002-0861

    Mathematical model for equilibrium moisture content of tobacco leaf under high temperature and relative humidity

    ZHENG SONG-JIN(1,2); LI BIN(1); WANG HONG-SHENG(1)
    1. Key Laboratory of Tobacco Processing Technology, CNTC, Zhengzhou 450001, P.R. China; 2. Technology Center of China Tobacco Hebei Industrial Corporation, Shijiazhuang 050051, P.R. China
    In order to study the moisture absorption of tobacco leaf during processing, the absorption characteristic curves of tobacco leaf under different relative humidities (in the range of 30% to 90%) and temperatures (60, 70 and 80 °C), respectively, were ...
  7. CORESTA Congress, Kyoto, 2004, APOST 04

    A new Romanian flue-cured cultivar : Virginia 177

    CIUPERCA A.; PAUNESCU M.; PAUNESCU A.D.; BOLD I.; DUMITRASCU P.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The improvement of the chemical and industrial quality of Virginia tobacco in Romania represents the main objective for those involved in tobacco research, production and industrialization. The most important way to achieve this objective is the change of ...
  8. CORESTA Congress, Kyoto, 2004, PPOST 06

    The prevention of TSWV attack in the Burley fields in Romania

    STANESCU V.; PAUNESCU A.D.; DIMA A.; PAUNESCU M.; BURCEA A.M.; SANISLAV N.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The Burley cultivars are very sensitive to virosis, in general, and to TSWV, in particular.Yield and quality of the obtained tobacco largely depend on the prevention of this virus, and this is managed by the chemical control of Thrips tabaci Lind., the ...
  9. CORESTA Meeting, Agronomy/Phytopathology, Bucharest, 2003, A 04

    The influence of the physiologically active substances and of the natural bioregulators on tobacco seed, seedlings and plants

    DIMA A.; PAUNESCU A.D.; PAUNESCU M.; CIUPERCA A.; MILITARU D.C.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The goal of the research was to improve the germination of tobacco seeds in order to obtain a healthy, vigorous, uniform seedling, ready to be transplanted in the shortest time. For the tobacco seed, cultivar Baragan 132, the following variants were used: ...
  10. CORESTA Meeting, Agronomy/Phytopathology, Bucharest, 2003, A 06

    New research concerning the production of tobacco seedlings in Romania using the float system with trays

    MILITARU D.C.; PAUNESCU A.D.; DIMA A.; COMAN E.
    Central Research Station for Tobacco Culture and Industrialization, Bucharest, Romania.
    The float system with trays was first tested in Romania in 1992, knowing its numerous advantages regarding the quality of the tobacco seedlings produced and the shortening of the obtaining period. After 1997, systematic research was conducted at the ...