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5 results

  1. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 52

    A prediction model for lip sticking force of cigarette tipping paper based on friction coefficient and grammage

    YANG Ji; ZHU Ruizhi; ZHANG Tao; GUO Lijuan; LIU Chunbo; XIANG Nengjun; LIU Zhihua; MIAO Mingming
    China Tobacco Yunnan Industrial Co., Ltd of CNTC, R&D Center, Kunming, China
    To quickly and accurately determine the adhesive force of cigarette tipping paper to lips, a prediction method was proposed based on friction coefficient and grammage. A peel strength tester was used to measure the adhesive force between tipping...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 15

    Crystal structure of nicotine gentisate and its permeability in pig buccal mucosa

    YANG Ji; MIAO Mingming; CHEN Yongkuan; LIU Zhihua; ZHAO Yang; WU Yiqin; LIU Chunbo; YANG Liu; ZHAO Hui; SHEN Qinpeng; DUAN Yuanxing; GONG Xiaowei
    R&D Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China
    Nicotine compound salt has been widely concerned recently with the continuous expansion of the e-cigarette market. Synthetic nicotine organic acid salt or nicotine complex, instead of monomeric nicotine, is used in the formulation of the next...
  3. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, ST 61

    Application of Gibbs free energy change to evaluation of moisture retention of tobacco

    JIANG Wei; LIU Chunbo; SHEN Qinpeng; ZHANG Fengmei; WANG Jin; TANG Shiyun; ZHU Ruizhi; HE Pei; YANG Guangyu; LIU Zhihua
    Key Laboratory of Tobacco Chemistry of Yunnan Province, Research & Development Center, Yunnan Industrial Co., Ltd of CNTC, Kunming, P.R. China
    In order to evaluate the water retention of tobacco quickly and accurately, a model was developed based on water activity. Gibbs free energy change (GFEC) of tobacco was calculated according to thermodynamic correlation formula, and then the moisture...
  4. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, STPOST 28

    Determination of benzo[a]pyrene in smokers’ urine by online gel permeation chromatography–solid phase extraction–gas chromatography/mass spectrometry

    SI Xiaoxi; ZHU Ruizhi; LIU Zhihua; ZHANG Fengmei; LIU Chunbo; SHEN Qinpeng; HE Pei; MIAO Mingming; YANG Guangyu
    Key Laboratory of Tobacco Chemistry of Yunnan, R&D Center of China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China
    A new method for determining the benzo[a]pyrene (B[a]P) in samples of smokers’ urine was developed with an online gel permeation chromatography-solid phase extraction-gas chromatography/mass spectrometry (GPC-SPE-GC/MS) hyphenated system. Urine...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, STPOST 02

    Influence of microwave treatment on the combustibility of tobacco and its kinetic analysis

    LIU Chunbo; SHEN Qinpeng; HE Pei; ZHANG Tao; ZHU Ruizhi; LIU Zhihua; YANG Guangyu; ZHANG Hongyu; MIAO Mingming
    Key Laboratory of Tobacco Chemistry of Yunnan Province, Research & Development Center, China Tobacco Yunnan Industrial Co., Ltd. of CNTC, Kunming 650231, P.R. China
    Microwave treatment can promote the expansion of tissue structure of tobacco leaves and improve their combustibility. To study the structure and combustibility of tobacco leaves treated with microwave for different durations, scanning electron...