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69 results

  1. TSRC, Tob. Sci. Res. Conf., 2008, 62, abstr. 05

    A highly sensitive and specific analytical procedure for the determination of a tobacco specific nitrosamine, 4-(methylnitrosamino)-1-(3-pyridyl)-l-butanol in human urine using molecular imprinted polymer extraction, hydrophilic interaction liquid chromatography and mass spectrometric detection

    BAILEY B.
    Covance Laboratories Ltd., Harrogate, North Yorkshire, UK
    The objective of this project was to develop and validate a highly sensitive and specific analytical procedure for the determination of 4 (methylnitrosamino)-1-(3 pyridyl)-1-butanol (NNAL), a tobacco specific nitrosamine, in human urine. A combination of ...
  2. TSRC, Tob. Sci. Res. Conf., 2008, 62, abstr. 06

    Analysis of free amino acids in cigarette tobacco by capillary electrophoresis coupling with novel multi-photon excited fluorescence detection

    CHEN S.; LI D.; ZHU W.
    Technology Center of Wuhan Tobacco Company, Shisheng Road, Hanyang District, Wuhan City, China
    Analysis methods of amino acids are in the ascendant for lots of research field. Capillary electrophoresis (CE) with continuous- wave-based on multiphoton-excited fluorescence (MPEF) detection, as a novel analysis method, has been introduced into ...
  3. TSRC, Tob. Sci. Res. Conf., 2008, 62, abstr. 09

    A rapid method for quantification of Dicamba, 2,4-D and 2,4,5-T in tobacco by reverse phase high performance liquid chromatography

    RAGHU H.S.; DEVARAJ A.; DINESH T.K.; PALANI N.
    ITC R&D Centre, Organic Chemistry Lab, Peenya, Bangalore, India
    The acidic herbicides, Dicamba, 2,4-D and 2,4,5-T, are widely used for controlling annual grasses and broad leaf weeds in a large number of agricultural crops. Due to their persistent nature the herbicide residues are frequently found in the soil, water ...
  4. TSRC, Tob. Sci. Res. Conf., 2008, 62, abstr. 10

    Single photon ionization time-of-flight mass spectrometry:quantification of selected Hoffmann compounds using the Borgwaldt LM2X-PHOTON-TOFMS

    ZIMMERMANN R.; MITSCHKE S.; ROSE N.
    Helmholtz Zentrum Muenchen, Neuherberg, Germany
    Mass spectrometry (MS) with soft ionisation (i.e. non-fragmenting ionisation) such as photo ionisation (PI) methods are particularly well suited for fast online tobacco analysis. In the past few years several important technical milestones have been set ...