1. Concentrated sulfuric acid
2. Molisch’s reagent: 5% (w/v) α-naphthol in 95% ethanol, freshly prepared
3. Seliwanoff’s reagent: 0.05% (w/v) resorcinol in 3M hydrochloric acid
4. Orcinol solution: dissolve 1.5g of orcinol in 100ml of concentrated
hydrochloric acid and add 20 – 30 drops of 10% ferric chloride solution
5. Benedict’s reagent: i) Dissolve 173g of sodium citrate and 100g of
anhydrous sodium carbonate in 600ml of hot water and then dilute to
800ml with water. ii) Dissolve 17.3g of CuSO4.5H2O in 100ml of hot water,
then cool and dilute to 100ml. iii) Add reagent from i) to ii) with constant
stirring and make the final volume to 1L.
6. Test solutions: prepare 1% (w/v) of the following sugar samples—
glucose, fructose, lactose, sucrose, ribose, and starch
7. Distilled water