Search Results

6 results

  1. 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...
  2. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, STPOST 11

    Quantitative discrimination of the flavour type of flue-cured tobacco and correlation between flavour type and planting area

    LI Chao(1); MIAO Mingming(1); QIN Yunhua(1); LI Exian(2); WU Yiqin(1); XU Yong(1); YANG Guangyu(1); ZHANG Chengming(1)
    (1) Cigarette Product Quality Inspection Institute, Technology Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China; (2) Institute of Biotechnology and Genetic Resources, Yunnan Academy of Agricultural Sciences, Kunming, P.R. China
    To study the relationship between chemical composition and flavour type of flue-cured tobacco, 500 tobacco samples were collected from 29 areas in 14 Chinese provinces in 2012. A classical sampling method was applied. Following relevant methods...
  3. 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...
  4. 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...
  5. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 07

    A study of the determination of several heavy metals in tobacco and a tobacco additive by Solid Phase Extraction and HPLC

    LIU Wei; LI Zhong; CHEN Zhangyu; WANG Baoxing; SHI Honglin; YANG Guangyu; ZHANG Yunhuai
    Yunnan Academy of Tobacco Science, Key Laboratory of Chemistry & Engineering, Kunming, Yunnan, China.
    A method for the determination of copper, nickel, tin, lead, cadmium and mercury in tobacco and a tobacco additive by solid phase extraction and high performance liquid chromatography (HPLC) has been studied. The samples were digested by microwave....
  6. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 08

    A determination of aromatic amines in tobacco by Solid Phase Extraction and High Performance Liquid Chromatography

    HUANG Haitao; WANG Baoxing; LIU Wei; WANG Lang; LI Zhong; CHEN Zhangyu; YANG Guangyu
    Yunnan Academy of Tobacco Science, Key Laboratory of Chemistry & Engineering, Kunming, Yunnan, China.
    A new method for the determination of aromatic amines (aniline, p-methylaniline, 2,4-dimethylaniline, 2,4,6-trimethylaniline, 1-naphthylamine, 2-naphthylamine) in tobacco by solid phase extraction and high performance liquid chromatography (HPLC) is...