Composition: Copper sulfate, sodium carbonate, sodium potassium tartrate Use: Glucose determination (Folin-Wu method) Appearance: Blue solution

Copper Content: 0.5% w/v as CuSO₄·5H₂O. Sodium Carbonate: 2.5% w/v. Sodium Potassium Tartrate: 2.5% w/v. Appearance: Clear blue solution. pH: 10.5-11.5. Stability: Stable for 3 months when stored properly. Reactivity: Reacts with reducing sugars to form cuprous oxide. Sensitivity: Detects 0.01-1.0 mg glucose. Filterability: Passes through filter paper without residue. Preparation: According to Folin & Wu method. Performance: With standard glucose solution, gives characteristic color development.