Search Results

15 results

  1. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups (Workshop), STW 02

    Quantitative risk assessment (QRA)-based prioritization of mainstream cigarette smoke toxicants

    LI Xiang(1); SHANG Pingping(1); XIE Fuwei(1); ZHU Maoxiang(2); YANG Zhihua(2);NIE Cong(1); LIU Huimin(1); XIE Jianping(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China; (2) Beijing Institute of Radiation Medicine, Beijing, P.R. China
    In 2008, seven representative toxicants in mainstream cigarette smoke were screened and validated by China Tobacco to indicate the harmfulness of mainstream cigarette smoke, which included carbon monoxide (CO), hydrogen cyanide (HCN), 4-(N-methyl ...
  2. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 35

    Residue degradation of λ-cyhalothrin and fenvalerate during tobacco planting and processing

    CHEN Li; HU Bin; PAN Lining; CUI Huapeng; CAI Junlan; JIA Yunzhen; FAN Meijuan; WANG Xiaoyu; LIU Huimin
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    Lambda-cyhalothrin and fenvalerate, two widely used pesticides in tobacco, have been receiving high attention recently in China as their residue is one of the most important factors affecting the quality and safety of tobacco. To find out the key ...
  3. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, ST 13

    Determination of harmful components in mainstream cigarette smoke by FT-NIR spectrometry equipped with Cambridge filter pads

    REN Jianxin(1); WANG Zhiguo(1); LIU Wei(1); DU Wen(1); ZHONG Kejun(1); LIU Huimin(2); HU Qingyuan(3)
    (1) Hunan Industrial Co., Ltd. of CNTC, Technonlgy Center, Changsha, Hunan, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China; (3) China National Tobacco Quality Supervision & Test Center, Zhengzhou, Henan, P.R. China
    The yields of harmful components in cigarette smoke are basic parameters to evaluate the harm of cigarettes. However, the existing detection methods for most harmful components in mainstream cigarette smoke are complicated and time consuming. Therefore a ...
  4. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 33

    Filtration and retention characteristics of crotonaldehyde in cigarette filters

    WEN Jianhui(1); DU Wen(1); PENG Bin(2); LI Bin(2); ZHANG Xiaobing(2); XIE Fuwei(2); LIU Huimin(2); ZHONG Kejun(1)
    (1) China Tobacco Hunan Industrial Co., Ltd, Technology Center, Changsha, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    In order to study the filtration and retention characteristics of crotonaldehyde in cigarette filters, the filtration efficiencies of crotonaldehyde were investigated in regular acetate filter under ISO and Health Canada Intense (HCI) smoking regimes, and ...
  5. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 63

    Simultaneous determination of 114 pesticide residues in tobacco by LC-MS/MS using multi-walled carbon nanotubes-based dispersive solid phase extraction

    HU Bin; YU Fei; CHEN Li; AI Dan; PAN Lining; LIU Huimin
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    A method capable of simultaneously determining the residues of 114 pesticides in tobacco was developed by dispersive solid phase extraction (DSPE), where multi-walled carbon nanotubes (MWCNTs) were used as extraction material, and LC-MS/MS in multiple ...
  6. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 84

    Distribution of toxic chemicals in the different sized particles from mainstream cigarette smoke

    WANG Hongbo; LI Xiang; XIE Fuwei; PENG Bin; LIU Kejian; WANG Sheng; QIN Yaqiong; NIE Cong; LIU Huimin
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    It is important for the estimation of risk of cigarette smoke that the distribution of toxic chemicals is accurately measured in the different sized particles of cigarette smoke aerosol. An electrical low pressure impactor (ELPI) directly coupled with a ...
  7. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, STPOST 08

    Determination of 16 polycyclic aromatic hydrocarbons in mainstream cigarette smoke by using a graphene coated solid-phase micro extraction (SPME) technique followed by gas chromatography-mass spectrometry (GC/MS)

    WANG Xiaoyu; GUO Jizhao; XIA Qiaoling; DING Li; XIE Fuwei; ZHANG Xiaobing; LIU Huimin; WANG Hongbo
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    A new method to determine the levels of 16 polycyclic aromatic hydrocarbons (PAHs) in mainstream cigarette smoke simultaneously and rapidly was developed. The method used SPME-GC/MS, wherein an in-house prepared graphene-coated fibre was used in SPME. ...
  8. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, PT 02 (Poster)

    Filtration efficiencies and distribution patterns of nicotine in filters of different structure

    WEN Jian-hui(1); DU Wen(1); PENG Bin(2); ZHANG Xiao-bing(2); LIU Xiao-qing(1); LI Yan-ping(1); XIE Fu-wei(2); WANG Zhi-guo(1); LIU Hui-min(2)
    (1) R&D Center of China Tobacco Hunan Industrial Co., Ltd., Changsha, Hunan, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    The filtration efficiencies of filters of different structure to nicotine and the space distribution patterns of nicotine retention in filters were studied. By quantitatively analysing the nicotine deliveries in mainstream cigarette smoke and nicotine ...
  9. CORESTA Congress, Shanghai, 2008, SSPT 32

    Determination of organophosphorous pesticides residues in tobacco by LC-MS/MS

    HU Bin; LIU Huimin; XIE Fuwei; WANG Sheng; HUANG Qi; LIU Ting
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    A quick and simple pre-treatment method was introduced for the analysis of 15 organophosphorus pesticide residues in tobacco. The compounds were quantitatively determined by liquid chromatography-mass/mass spectrometry under the MRM mode and methanol ...
  10. CORESTA Congress, Shanghai, 2008, SSPT 48

    Simultaneous determination of nicotine and nine nicotine metabolites in urine of smokers using liquid chromatography-tandem mass spectrometry

    XIE Fuwei; FAN Zhong; LIU Huimin; XIA Qiaolin; WANG Sheng; DING Li
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    A method based on liquid chromatography tandem mass spectrometry (LC-MSMS) was developed for the direct determination of nicotine, cotinine, trans-3'-hydroxycotinine, their corresponding glucuronide conjugates, as well as nornicotine, norcotinine, ...