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98 results

  1. Tobacco Science & Technology, 2012, 1, p. 43-46., ISSN.1002-0861

    Determination of K+, Ca2+, and Mg2+ in tobacco with dry ashing-ion chromatography

    WANG Ying(1); ZHANG Wei(1); LI Xue(1); LI Li(2); WEI Zhao(3); TANG Gangling(1); HU Qingyuan(1)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) Technology Center, China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; 3. Technology Center, Shenzhen Cigarette Factory, Shenzhen 518109, Guangdong, P.R. China
    A method for simultaneously determining the contents of potassium, calcium and magnesium in tobacco with dry ashing-ion chromatography was developed. The results showed that: the relative standard deviations of potassium, calcium and magnesium were...
  2. 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...
  3. Tobacco Science & Technology, 2012, 11, p. 29-32, ISSN.1002-0861

    Influence of ventilation on burning temperature and deliveries of harmful components in mainstream cigarette smoke

    PANG Yongqiang(1); HUANG Chunhui(2); CHEN Zaigen(1); CHEN huan(1); JIANG Xingyi(1); TANG Gangling(1)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, P.R. China
    In order to reduce the harm of smoking, the effects of air permeability of cigarette paper, tipping paper and plug wrapper on the burning temperature of cigarette and deliveries of tar and seven harmful components (including CO, HCN, NNK, NH3, B[a]P,...
  4. Tobacco Science & Technology, 2012, 11, p. 45-50, ISSN.1002-0861

    Simultaneous determination of 6 antiseptics in tobacco with LC-MS/MS method

    YANG Fei; BIAN Zhaoyang; TANG Gangling; HU Qingyuan
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    A method basing on high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed for determining the antiseptic residues in tobacco. The analytes extracted from tobacco samples were separated on C18 column (150 mm×2.1 mm×3...
  5. Tobacco Science & Technology, 2012, 11, p. 60-63, ISSN.1002-0861

    Transfer behavior of maleic hydrazide residue in cigarette during smoking

    ZHANG Hongfei(1); TANG Gangling(1); LOU Xiaohua(2); CHEN Tao(3); GAO Chuanchuan(2); BAI Junchao(3)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) Guizhou Tobacco Quality Supervision & Test Station, Guiyang 550025, P.R. China; (3) Chongqing Tobacco Quality Supervision & Test Station, Chongqing 400023, P.R. China
    The transfer behavior of maleic hydrazide (MH) in cigarette during smoking was studied by adding internal standard. The pyrolysis mechanism of MH was studied with pyrolysis technology. The results showed that: 1) The transfer rate of MH into...
  6. Tobacco Science & Technology, 2012, 12, p. 68-71, ISSN.1002-0861

    Comparison of chemical components and smoking quality between yellow sun-cured tobaccos from different growing areas

    HE Shengbao; FENG Xiaomin; WANG Yingyuan; LUO Anna; XING Jun*
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    For clarifying the quality characteristics of yellow sun-cured tobacco from different origins, the routine chemical components and smoking quality of tobacco samples from Hubei, Hunan and Guangxi growing areas were analyzed and evaluated. The results...
  7. 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...
  8. Tobacco Science & Technology, 2012, 3, p. 52-56., ISSN.1002-0861

    Determination of phthalic acid esters in cigarette filter by GC/MS

    ZHANG Hongfei; LIU Nan; BIAN Zhaoyang; TANG Gangling; HU Qingyuan
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    A method for simultaneously determining 17 phthalic acid esters (PAEs) in cigarette filter was established with GC/MS. The parameters such as extraction mode, extraction solvent, extraction condition, detection condition were tested, and 45 cigarette...
  9. Tobacco Science & Technology, 2012, 7, p. 50-53, ISSN.1002-0861

    Improvement of determination of ammonia in mainstream cigarette smoke and comparison of ammonia deliveries under different smoking regimes

    WANG Ying; ZHANG Wei; HU Qingyuan; TANG Gangling; CHEN Zaigen
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    In order to improve the determination efficiency of ammonia (NH3) in mainstream cigarette smoke, ion chromatography (IC) method described in the current standard (YC/T 377—2010) was improved, meanwhile NH3 deliveries in mainstream cigarette smoke...
  10. Tobacco Science & Technology, 2012, 8, p. 29-33, 39, ISSN.1002-0861

    Uncertainty in determination of total alkaloids in flue-cured tobacco with continuous flow method

    ZHANG Wei(1); WANG Ying(1); TANG Gangling(*1); SHAN Hongguang(1); XU Ruyan(2); WANG Xiaochun(2); FAN Guomin(3)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) Xuzhou Cigarette Factory, China Tobacco Jiangsu Industrial Co., Ltd., Xuzhou 221005, Jiangsu, P.R. China; (3) Zhumadian Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Zhumadian 463000, Henan, P.R. China
    In order to evaluate the uncertainty in the determination of total alkaloids in flue-cured tobacco with continuous flow method, the cause-effect relationship diagram in the determination was revised and a new mathematical model for measurement...