マルチ電極電気化学検出器を用いたフェノール類の高速液体クロマトグラフィー

概要

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Reversed-phase liquid chromatography with a multielectrode electrochemical detector was applied to the separation of phenolic compounds, including methylphenols, chlorophenols and nitrophenols. A mobile phase of methanol-0.05 M potassium dihydrogen phosphate-0.05 M dipotassium hydrogenphosphate (9 : 8 : 1,pH 7) was used at a flow rate of 0.5 ml/min. Four porous glassy carbon electrodes placed in a series were used for coulometric measurements. Selective and sensitive detection resulted. From the hydrodynamic voltammograms of the compounds, the potential of the four electrodes was set at 550,700,750 and 80O mV vs. Ag/AgCl, respectively. These analytical conditions enabled the detection of 2,4-dinitro-phenol and 4,6-dinitro-2-methylphenols.
社団法人日本分析化学会の論文
1994-11-05