Search Results

10 results

  1. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 31

    Study on nicotine release from snus products with fiber-optic sensing detection technology

    LI Peng(1); SHEN Yi(2); CHANG Cheng(3); ZENG Shitong(1); ZHANG Jianxun(1); ZONG Yongli(1); JIAN Xiaopeng(2); YANG Bin(2); SUN Shihao(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China; (2) Shanghai New Tobacco Product Research Institute, Shanghai, P.R. China; (3) Zhengzhou GaTech Instruments Co., Ltd., Zhengzhou, P.R. China
    In order to strengthen the quality and safety control of snus products, the development and application of an optical fiber sensing drug dissolution analyzer were investigated to study nicotine release. An automatic testing method for the in situ release ...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, ST 26

    Dynamic determination of nicotine and 11 metabolites in brain and blood of rat by simultaneous microdialysis coupled with UHPLC-HRMS

    MAO Jian; SUN Shihao; LU Binbin; LI Peng; LIU Junhui; ZENG Shitong; ZHANG Qidong; CHAI Guobi; XI Hui; ZHANG Jianxun
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    Nicotine is the most specific cigarette smoke component and plays a key role in tobacco addiction. Nicotine dependence based on neuropharmacology effects is closely associated with nicotine metabolism. Although peripheral metabolism of nicotine has been ...
  3. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 59

    Determination of nicotine and its metabolites in rat brain using microdialysis coupled with UHPLC-Q-Exactive high resolution mass spectroscopy

    MAO Jian; LU Binbin; LI Peng; LIU Junhui; ZHANG Wenjuan; HONG Guangfeng; HUO Xiankuan; SUN Shihao
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
    In order to accurately determine nicotine (Nic) and its metabolites in rat brain, a method of microdialysis coupled with ultra high performance iquid chromatography-high resolution quadrupole-Orbitrap (UHPLC-Q-Exactive) mass spectrometry was established. ...
  4. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 80

    Volatile components release characteristics of tobacco smoke under heating conditions

    ZENG Shitong(1); CUI Kai(1); LIU Shan(1); TANG Peipei(1); SUN Shihao(1); ZONG Yongli(1); ZHANG Jianxun(1); HU Anfu(2); YANG Jun(2)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China; (2) China Tobacco Zhejiang Industrial Co., Ltd, Zhejiang, China
    In order to investigate volatile components release characteristics of tobacco smoke under heating conditions, seven different tobacco samples including flue-cured tobacco (B2F, C3F, X2F), oriental tobacco (B1, B2) and burley tobacco (B2F, C3F) were ...
  5. 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 ...
  6. Tobacco Science & Technology, 2012, 4, p. 28-32, ISSN.1002-0861

    Determination of hydrogen peroxide in mainstream cigarette smoke by highly selective fluorescence method with Amplex Red/HRP

    PENG Shuhai(1); ZHANG Ying(2); LIU Hailin(1); ZHUANG Yadong(2); JIANG Chengyong(1); SUN Shihao(1); ZONG Yongli(1); XIE Jianping(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Technology and Research Center, China Tobacco Jiangsu Industrial Co., Ltd., Nanjing 210093, P.R. China
    A highly selective fluorescence method with Amplex Red HRP was developed to determine the hydrogen peroxide in mainstream cigarette smoke. This method’s LOD=13.5 nmol/L, recovery 98.3 %-101.7 % and RSD<3.17 % (n =5). The level of hydrogen peroxide in ...
  7. TSRC, Tob. Sci. Res. Conf., 2011, 65, abstr. 73

    A novel model mouth system for evaluation of in vitro release of nicotine and tobacco-specific nitrosamines from moist snuff.

    JIE ZHANG; PENG LI; YONGLI ZONG; SHIHAO SUN; YUBING SONG; JIANPING XIE
    Zhengzhou Tobacco Research Institute, Zhegzhou, Henan, P.R. China.
    It is critical to characterize the release of nicotine and tobacco-specific nitrosamines (TSNA) from smokeless tobacco products for safety evaluation and product quality control. A novel model mouth system for evaluating the in vitro nicotine and TSNA ...
  8. Tobacco Science & Technology, 2011, 10, p. 44-48., ISSN.1002-0861

    Analysis of total nicotine, free nicotine and tobacco-specific n-nitrosamines in foreign (sic)[non Chinese] oral smokeless tobacco products

    ZHANG JIE(1,2); LI PENG(1); ZONG YONG-LI(1); SUN SHI-HAO(1); WANG SHENG(1); XIE JIAN-PING(1)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Beijing Workstation, Technology Center, Shanghai Tobacco (Group) Co., Ltd., Beijing 101121, P.R. China
    The moisture content, nicotine, pH, free nicotine, and 4 tobacco-specific nitrosamines (TSNAs) in 65 samples of foreign oral smokeless tobacco products were analyzed with CORESTA recommended methods. The results showed that there was wide discrepancy ...
  9. CORESTA Meeting, Smoke Science/Product Technology, Aix-en-Provence, 2009, SSPT 35

    Characterization of water distribution in cut tobacco using a low-field 1H NMR technique

    MA Ji; HA Baojiang; LI Peng; GUO Xueke; SUN Shihao; YANG Chunqiang; LI Yanqiang; ZONG Yongli; QU Zhan
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    Cut tobacco was studied by low-field 1H NMR at various water contents and temperatures. The spin-spin relaxation times (T2) were measured with Carr-Purcell-Meiboom-Gill (CPMG) sequences. Three populations were observed in cut tobacco, namely, population ...
  10. TSRC, Tob. Sci. Res. Conf., 2008, 62, abstr. 70

    Determination of volatile organic acids in flue-cured tobacco by derivatization headspace liquid-phase microextraction coupled to gas chromatography/mass spectrometry

    SUN SHIHAO; XIE JIAN-PING; ZONG YONG-LI
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    A method coupling derivatization headspace liquid-phase microextraction with gas chromatography-mass spectrometry (DH-LPME/GC-MS) was developed for determining volatile organic acids in flue-cured tobacco. The mixture of N,O-bis(trimethylsilyl) ...