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4 results

  1. Tobacco Science & Technology, 2006, 4, p. 27-30, ISSN.1002-0861

    Determination of sulfur-containing organophosphorus pesticide residues in tobacco

    ZHANG WEI; TANG GANG-LING; LIU HUI-MIN
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    The residues of seven sulfur-containing organophosphorus pesticides, including diazinon, parathion-methyl, chlorpyriphos, fenitrothion, malathion, ethylparathion and fenthion, in 239 domestic and 49 imported tobacco leaf samples and 12 imported cigarette ...
  2. CORESTA Congress, Kyoto, 2004, SSPT 10

    Determination of imidacloprid residue on tobacco

    TANG Gangling; ZHANG Wei; LIU Huimin; LIU Hongxia; SONG Juanmei; ZHANG Shusheng
    China National Tobacco Quality Supervise & Test Center, Zhengzhou, Henan, China.
    A method for the determination of imidacloprid residue on tobacco by high performance liquid chromatography (HPLC) has been developed. Imidacloprid on tobacco was extracted with ethyl acetate using ultrasonic extraction. The extract was purified by liquid ...
  3. CORESTA Congress, New Orleans, 2002, S 01

    Qualitative and quantitative analysis of flavor constituents in tobacco and tobacco products using SPME-GC-MS

    TANG Gangling; LIU Huimin; LI Rong; CHEN Zaigen
    China National Tobacco Quality Supervise & Test Center, Zhengzhou, Henan, China.
    Tobacco flavor constituents were analyzed with solid phase microextraction-gas chromatography-mass-spectrometry (SPME-GC-MS). A total of 60 constituents were quantified and identified by GC-MS. These included 2,3-pentanedione, pyridine, 2-methyl pyridine, ...
  4. CORESTA Congress, New Orleans, 2002, S 02

    Qualitative and quantitative analysis of flavor constituents in tobacco and tobacco products using flash-distillation-GC-MS

    LIU Huimin; TANG Gangling; LI Rong; CHEN Zaigen
    China National Tobacco Quality Supervise & Test Center, Zhengzhou, Henan, China.
    Tobacco flavor constituents were analyzed with flash-distillation-gas chromatography-mass-spectrometry (FD-GC-MS). A total of 70 constituents were quantified and identified by GC-MS. These included 2,6-dimethyl pyrazine, 2,3-dimethyl pyrazine, 6-methyl-5 ...