Skip to main content

10 Result(s)

within J. M. You Remove this filter

and

  1. No Access

    Article

    Separation and determination of flavone and xanthone glycosides in Tibetan folk medicinal species Swertia mussotii and S. franchetiana by capillary electrophoresis

    The contents of five pharmacologically active flavone and xanthone glycosides, namely, swertianolin, swertisin, isoorientin, mangiferin, and 7-O-[α-L-rhamnopyranosyl-(1 → 2)-β-D-xylopyranosyl]-1,8-dihydroxy-3-...

    Y. -L. Li, C. -X. Ding, H. -L. Wang, Y. -R. Suo… in Journal of Analytical Chemistry (2008)

  2. No Access

    Article

    Evaluation of the retention characteristics of ferrocene-bonded silica stationary phase and other silica-based reversed phases for HPLC using linear solvation energy relationships

    The similarities and differences in retention characteristics of ferrocene-bonded and other three silica-based phases have been elucidated by the use of linear solvation energy relation-ships (LESRs). These ph...

    Q. Y. Huai, J. M. You, Q. Wang, Y. M. Zuo in Chromatographia (2003)

  3. No Access

    Article

    Determination of alcohols using condensation agent carbazole-9-acetyl-benzene-disulfonate by high performance liquid chromatography with pre-column fluorescence derivatization

    A sensitive LC method for the determination of alcohols, using fluorescent condensation agent carbazole-9-N-acetylbenzne-disulfonate(CABS), has been developed. A mixture of alcohols and triethylamine catalyst ...

    J. M. You, X. J. Sun, W. J. Lao, Q. Y. Ou in Chromatographia (1999)

  4. No Access

    Article

    Study of the chromatographic behavior and inclusion constants of new fluorescence agents by use of cyclodextrin additives under conditions of steady- and dynamic-state equilibrium and with fluorescence detection

    We report four new derivatization agents, acridone-N-acetic acid (ARC), carbazole-9-ylacetic acid (CRA), carbazole-9-ylpropionic acid (CRP), and 2-methyl-2-carbazole-9-ylacetic acid (MCRA), with strong fluorescen...

    J. M. You, W. J. Lao, X. J. Fan, Q. Y. Ou, X. L. Jia in Chromatographia (1999)

  5. No Access

    Article

    HPLC of amino acids and oligopeptides by pre-column fluorescence derivatization with N-hydroxysuccinimidyl-α-(9-phenanthrene)-acetate

    A sensitive LC method for the detection of amino acids and oligopeptides with pre-column fluorescence derivatization has been developed. Glycine, glycylglycine, triglycine, glutathione, glutamic acid, and cyst...

    J. M. You, G. H. **e, H. E. Wang, J. X. Su, C. L. Zhou in Chromatographia (1997)

  6. No Access

    Article

    Measurement of the branching ratiosb →e ν X, μ ν X, τ ν X andν X

    The inclusive semileptonic branching ratios b→eνX,μ νX,τ νX andνX have been measured at LEP with the L3 detector. The analysis is based on 2-jet hadronic Z decays obtained in the data collected between 1991 and 1...

    M. Acciarri, A. Adam, O. Adriani… in Zeitschrift für Physik C Particles and Fie… (1996)

  7. No Access

    Article

    Measurement of cross sections and leptonic forward-backward asymmetries at theZ pole and determination of electroweak parameters

    We report on the measurement of the leptonic and hadronic cross sections and leptonic forward-backward asymmetries at theZ peak with the L3 detector at LEP. The total luminosity of 40.8 pb−1 collected in the year...

    M. Acciarri, A. Adam, O. Adriani… in Zeitschrift für Physik C Particles and Fie… (1994)

  8. No Access

    Article

    Search for non-minimal Higgs bosons inZ 0 decays

    We report on a search for the neutral and charged Higgs bosons predicted by models of spontaneous symmetry breaking with more than one Higgs doublet field. No signals are observed. We set model-independent lim...

    O. Adriani, M. Aguilar-Benitez, S. Ahlen… in Zeitschrift für Physik C Particles and Fie… (1993)

  9. No Access

    Article

    Studies of hadronic event structure and comparisons with QCD models at theZ 0 resonance

    The structure of hadronic events fromZ 0 decay is studied by measuring event shape variables, factorial moments, and the energy flow distribution. The distributions, after correction for detector effects and init...

    B. Adeva, O. Adriani, M. Aguilar-Benitez… in Zeitschrift für Physik C Particles and Fie… (1992)

  10. No Access

    Article

    Measurement of electroweak parameters from hadronic and leptonic decays of theZ 0

    We have studied the reactionse + e −→hadrons,e + e −, μ+ μ− and τ+ τ−, in the energy range 88.2 \( \leqq \sqrt s \leqq 94.2\) ...

    B. Adeva, O. Adriani, M. Aguilar-Benitez… in Zeitschrift für Physik C Particles and Fie… (1991)