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3 results

  1. CORESTA Congress, Kyoto, 2004, SSPT 03

    Study on the determination of polyphenols in tobacco by microcolumn high performance liquid chromatography and mass spectrometry after solid phase extraction

    WANG Lan; XU Ruofei; CHEN Zhangyu; LI Zhong
    Yunnan Academy of Tobacco Science, Key Laboratory of Chemistry & Engineering, Kunming, Yunnan, China.
    A microcolumn high performance liquid chromatography (HPLC) and mass spectrometry method for the determination of polyphenols in tobacco is studied. The polyphenols can be extracted from tobacco by refluxing in a boiling water bath with 80% methanol and ...
  2. 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. The ...
  3. 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 ...