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  1. No Access

    Article

    Improved HPLC Method for the Determination of Creatine Kinase Isoenzyme Activity in the Human Serum

    Isao Katasho, Shu Tahara, Morimasa Hayashi in Analytical Sciences (1985)

  2. No Access

    Article

    Simultaneous Determination of Ascorbic Acid and Dehydroascorbic Acid by High Performance Liquid Chromatography

    It has been found that ascorbic acid (AA) and dehydro-ascorbic acid (DHAA) can be derivatized to the compounds having a maximum absorption wavelength of 3OOnm under alkaline conditions, and that der¡vatizati o...

    Yoshihide Yasui, Morimasa Hayashi in Analytical Sciences (1991)

  3. No Access

    Article

    Ion Chromatographic Study of Sulfate-Triethylenetetramine Complexes in Aqueous Solution

    The selective effect of triethylenetetramine (Trien) on the retention behavior of sulfate in ion chromatography was studied. When Trien was added to an eluant as a counter ion, retention of sulfate was selecti...

    Masayuki Nishimura, Morimasa Hayashi, Kazuichi Hayakawa… in Analytical Sciences (1994)

  4. No Access

    Article

    Chromatographic Simulation of the Effect of a Polyvalent Counter Ion on Retention Behavior and Peak Intensity of Sulfate

    The effect of a mobile phase polyvalent counter ion on the retention behavior and peak intensity of sulfate in non-suppressed ion chromatography was quantitatively studied using a chromatogram simulation metho...

    Masayuki Nishimura, Morimasa Hayashi, Atsushi Yamamoto… in Analytical Sciences (1994)