Barfoed's Test
Автор: CHAMELI DEVI INSTITUTE OF PHARMACY INDORE
Загружено: 2021-01-03
Просмотров: 35423
Описание:
Qualitative Analysis of Carbohydrates
Barfoed's Test
The Barfoed’s test is used to differentiate reducing monosaccharide from a disaccharide sugar. The reaction is conducted in a slightly acidic medium. It is based on the reduction of copper(II) acetate to copper(I) oxide (Cu2O), which forms a brick-red precipitate. RCHO + 2Cu2+ + 2H2O → RCOOH + Cu2O↓ + 4H+ (Disaccharides may also react, but the reaction is much slower.)
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