^1H-核磁気共鳴法によるフェノール中の微量水分の定量

概要

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Phenols contain small amounts of water which is very difficult to remove. It is known that phenols dissolved in acetone containing a small amounts of a metallic salt such as cadmium nitrate give well resolved signals for the OH group and H_2O protons. When the signal of the H_2O proton in phenol becomes a sharp peak, it is feasible to analyze it from the peak height. This technique was applied to the determination of a small amounts of water in phenols. A calibration curve was obtained by measuring the peak height ratio of tetramethyltin (TMT) to the H_2O proton signals. This calibration curve was linear and the relative standard deviation was within 0.45%. This method is considered to be useful as an easy and rapid method of analysis of amounts of water in phenols.
社団法人日本分析化学会の論文
1988-02-05