Search Results

39 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, APPOST 10

    The influence of sodium carbonate buffer on TSNAs accumulation and leaf quality during tobacco storage

    LIU Xingyu(1); LIU Deshui(1); MA Li(1); MA Yanjun(1); YANG Zhendong(1); ZHANG Jie(1); LIN Lin(2); BAI Ruoshi(1); ZHOU Jun(1)
    (1) Technology Center, Shanghai Tobacco Group Co., Ltd., Beijing, P.R. China; (2) Beijing Tobacco Quality Supervision and Testing Station, Beijing, P.R. China
    Storage of tobacco leaves is an important stage in tobacco processing. Tobacco Specific N-nitrosamines (TSNAs) in tobacco leaves gradually increase during storage. The purpose of this study was to investigate the influence of sodium carbonate on the ...
  2. TSRC, Tob. Sci. Res. Conf., 2019, 73, abstr. 041

    Analysis of e-liquids of electronic cigarettes containing nicotine salts

    HAN Shulei; Fu Yaning; Liu Tong; Wang Hongjuan; Chen Huan; Hou Hongwei
    China National Tobacco Quality Supervision and Test Center, Henan, P.R. China
    Electronic cigarettes containing nicotine salts are gaining in more and more popularity worldwide. However, information about this kind of products is very limited. We developed a high performance liquid chromatography method for simultaneously ...
  3. TSRC, Tob. Sci. Res. Conf., 2019, 73, abstr. 050

    Cytotoxicity and acute toxicity assessment of several typical nicotine salts

    WANG Hongjuan; CHEN Huan; HAN Shulei; FU Yaning; LIU Tong; HOU Hongwei; HU Qingyuan
    China National Tobacco Quality Supervision & Test Center, Henan, P.R. China
    As a new form of nicotine intake, nicotine salts are increasingly used in new tobacco products such as electronic cigarette. Whether the matrix components of electronic liquids will affect its toxicity, relative to pure nicotine, how to set the ...
  4. TSRC, Tob. Sci. Res. Conf., 2017, 71, abstr. 097

    Evaluation of mainstream cigarette smoke components yields of different cigarette types based on principal component analysis

    LI Zhonghao; YANG Fei; LIU Shanshan; FAN Ziyan; WANG Ying; BIAN Zhaoyang; DENG Huimin; TANG Gangling; HU Qingyuan
    China National Tobacco Quality Supervision & Test Center, Zhengzhou, China
    The feasibility of using Principal Components Analysis (PCA) in order to analyze a complex cigarette smoke mixture, seven cigarette mainstream smoke components, including carbon monoxide (CO), 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), Benzo(a ...
  5. 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 ...
  6. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 54

    Determination of 9 aromatic amines in mainstream smoke by dispersive liquid phase microextraction and gas chromatography mass spectrometry

    DENG Huimin; LI Zhonghao; YANG Fei; FAN Ziyan; HENG Yingying; JIANG Xingyi; TANG Gangling; HU Qingyuan
    China National Tobacco Quality Supervision and Test Center, Zhengzhou, China
    A new method for the rapid and simultaneous determination of nine aromatic amines in mainstream cigarette smoke by dispersive liquid phase microextraction (LPME) coupled with gas chromatography/mass spectrometry (GC/MS) was developed. The measured ...
  7. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, ST 25

    Migration of 126 pesticide residues in cigarettes during smoking

    LOU Xiaohua(1); ZHANG Hongfei(2); GAO Chuanchuan(1); ZHU Wenjing(1); TANG Gangling(2); BIAN Zhaoyang(2); BA Jinsha(1); WAN Yilun(1)
    (1) Guizhou Tobacco Quality Supervision & Test Station of CNTC, Guiyang, P.R. China; (2) China National Tobacco Quality Supervision Test Center of CNTC, Zhengzhou, P.R. China
    Pesticide residues could be an important index in the health risk assessment of cigarettes. The transfer amount of pesticide residues into smoke depends on the physical and chemical properties of pesticides. In order to investigate the distribution rules ...
  8. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, STPOST 20

    Research on differences of deliveries of components in mainstream cigarette smoke under two smoking regimes

    YANG Fei; LI Zhonghao; TANG Gangling; LIU Shanshan; JIANG Xingyi; BIAN Zhaoyang; PANG Yongqiang; ZHANG Hongfei; ZHANG Wei; FAN Ziyan; ZHU Fengpeng; LIU Nan; CHEN Zaigen
    China National Tobacco Quality Supervision & Test Center, Zhengzhou, P.R. China
    In order to research the differences of deliveries of components in mainstream cigarette smoke under two smoking regimes from different angles, the samples of nine Virginia type cigarettes and 11 blended type cigarettes of different tar yields (1.0-13.3 ...
  9. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 47

    Influence of measurement uncertainty on recommended regulation for cigarette smoke contents

    LI Zhonghao; HU Qingyuan; TANG Gangling; YANG Fei; PANG Yongqiang; FAN Ziyan; ZHANG Hongfei; LIU Shanshan; BIAN Zhaoyang; JIANG Xingyi; ZHANG Wei; CHEN Huan; CHEN Zaigen
    China National Tobacco Quality Supervision & Test Center, Zhengzhou, Henan, China
    According to the WHO recommended regulation for 9 priority toxicants in cigarette smoke, the collaborative study on specific analysis methods was achieved in 2014. The results of precision under reproducibility condition showed that the Reproducibility ...
  10. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 36

    Effects of cigarette smoke condensation under different smoking regimens on human oral epidermoid carcinoma cells

    FAN Ziyan(1); LIU Shanshan(1); LI Zhonghao(1); PANG Yongqiang(1); JIANG Xingyi(1); TANG Gangling(1); ZHAI Niu(2)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou, P.R. China; (2) China Tobacco Gene Research Center, Zhengzhou, P.R. China
    In this study, immortalized human oral cells (oral epidermoid carcinoma cell line KB) was used as an experimental model to assess the cytotoxicity of exposure to cigarette smoke condensates (CSCs) prepared under ISO and HCI smoking regimens. The dose of ...