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2 results

  1. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, ST 51

    Preliminary investigation on interaction mechanism between nicotine and pepsin

    HAN Jingmei(1); LIAO Xiaoxiang(1); YUAN Dalin(1); LEI Ping(1); ZHENG Xudong(1); FAN Ying(1); SHANG Shanzhai(1); LI Zhiqiang(1); TANG Jianguo(1); LI Hui(2); CHEN Yongkuan(1)
    (1) Non-traditional Tobacco Products Institute, Technology Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China; (2) Sichuan University, School of Chemical Engineering, Chengdu, P.R. China
    In order to investigate the absorption characteristics of the human stomach to nicotine (NIC) originating from tobacco products for oral use, different concentration levels of nicotine in a citric acid and sodium citrate buffer solution (pH = 2.0) were ...
  2. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 77

    A robust method for evaluating the pH of e-liquids

    ST. CHARLES F.K.(1); MOLDOVEANU S.(2); SCOTT W.(2)
    (1) St. Charles Consultancy, Lewisville, NC, USA; (2) R.J. Reynolds Tobacco Co., Winston-Salem, NC, USA
    The measurement of pH is one of the simplest and most common analytical methods practiced in the laboratory. The pH-meter is calibrated using certified buffers, the electrode is placed in the solution, and if a reading is obtained, the value is used. In ...