Search Results

290 results

  1. 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 ...
  2. 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 ...
  3. 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. ...
  4. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 62

    Matrix effect evaluation based on a multi-residual pesticide determination method on tobacco by ASE-HPLC-MS/MS

    HU Bin; AL Dan; YU Fei; PAN Lining; CHEN Li; LIU Huimin
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    A new method combining accelerated solvent extraction and liquid chromatography-tandem mass spectrometry (ASE-LC-MS/MS) was developed for multi-pesticide residue detection in tobacco. In this method, extraction and cleanup of tobacco samples were ...
  5. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 63

    Functional porous cellulose acetate/carboxymethylcellulose composite microspheres for effective removal of hydrogen cyanide from cigarette smoke

    SUN Peijian; SUN Xuehui; YANG Song; WANG Yipeng; JIA Yunzhen; ZHAO Le; WANG Hongbo; NIE Cong; LIU Huimin
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
    Hydrogen cyanide (HCN), a major toxicant in cigarette smoke, was assigned as one of the 18 priority smoke constituent that should be regulated. Absorption is an effective method to remove toxic compounds from the cigarette smoke. However, the absorption ...
  6. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 64

    Development of an on-line method for separating stems from tobacco lamina based on low-energy X-ray transmission imaging

    ZHU Wenkui(1); CHEN Liangyuan(1); WANG Bin(1); LIU Bin(2); MAO Junwei(2); ZHONG Kejun(2); XI Jianping(2); ZHANG Hui(2); WANG Yibin(3)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China; (2) China Tobacco Hunan Industrial Co. Ltd., Hunan, P.R. China; (3) Nanjing Jiao’er Science and Technology Ltd., Jiangsu, P.R. China
    During the tobacco threshing and redrying processes, separation quality of tobacco leaves and stems has a significant effect on the purity of output tobacco lamina. For the traditional separation method by air classifier, separation efficiency is limited ...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2013, Brufa di Torgiano, AP 24

    Colonisation of Pseudomonas aeruginosa SXYC15 in tobacco via EGFP

    XI Jiaqin(1); FENG Xiaohu(2); SONG Jizhen(1); WANG Libing(2); ZHAO Tao(2); YIN Qisheng(1); GUO Jianhua(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China; (2) Fuzhou Branch of Jiangxi Tobacco Corporation, Fuzhou, P.R. China
    Pseudomonas aeruginosa SXYC15 was isolated from fresh leaves of tobacco, which had considerable antagonism to Pseudomonas syringae pv. angulata. The stability of the control effect mainly depends on whether antagonistic microbes could effectively colonise ...
  8. CORESTA Meeting, Smoke Science/Product Technology, 2013, Seville, ST 28

    Quantitative analysis of organic compounds in gas phase of mainstream cigarette smoke with on-line atmospheric pressure chemical ionisation tandem mass spectrometry

    SUN Shihao; JIANG Chengyong; WANG Hui; ZONG Yongli; ZHANG Jianxun
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    In order to measure selected organic compounds in cigarette smoke which might possess potential risks to human health and the environment, a tandem mass spectrometry method was developed and applied in the on-line analysis of mainstream cigarette smoke ...
  9. CORESTA Meeting, Smoke Science/Product Technology, 2013, Seville, ST 31

    Retention distribution patterns of nicotine and phenolic compounds in filters

    WEN Jianhui(1); DU Wen(1); PENG Bin(2); ZHANG Xiaobing(2); XIE Fuwei(2); LIU Huimin(2); ZHONG Kejun(1)
    (1) China Tobacco Hunan Industrial Co., Ltd., Technology Center, Changsha, Hunan, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    The retention distribution patterns of nicotine and seven phenolic compounds in cigarette filters were studied. The nicotine and seven phenolic compounds retained in each segment were quantitatively analysed after the filters were transversely and ...
  10. CORESTA Meeting, Smoke Science/Product Technology, 2013, Seville, ST 56

    Dose-effect relationship between main precursors and delivery of hydrocyanic acid in cigarette smoke and influencing factors of the same

    WANG Hongbo; XIA Qiaoling; XIE Fuwei; GUO Jizhao; CAO Depo; ZHAO Xiaodong; DING Li; YAN Quanping; LIU Kejian; LIU Huimin
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    With a home-made cigarette smoking simulator of rapid heating, the source of hydrocyanic acid (HCN) in cigarette smoke was studied. The effects of tobacco matrix, pyrolysis temperature, oxygen content in atmosphere, flow rate and heating rate on the yield ...