α-Naphthol Reaction - α-Naphthol Reaction

Japanese: α-ナフトール反応 - あるふぁなふとーるはんのう
α-Naphthol Reaction - α-Naphthol Reaction

...One of the color reactions of carbohydrates. Also known as the α-naphthol reaction. After adding 2-3 drops of a 5-15% alcohol solution of α-naphthol to the sample solution in a test tube and mixing it, tilt the test tube and gently add concentrated sulfuric acid along the side of the tube. The concentrated sulfuric acid, which has a higher specific gravity, sinks to the bottom and forms two layers.

*Some of the terms that refer to the "α-naphthol reaction" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…炭水化物の呈色反応の一つ。α‐ナフトール反応ともいう。試験管に入れた試料溶液に5~15%のα‐ナフトールのアルコール溶液を2~3滴加えて混合した後,試験管を傾け器壁に沿って濃硫酸を静かに加えると,比重の大きな濃硫酸が下に沈んで2層を成す。…

※「α-ナフトール反応」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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