Preparation of standard solution of gallic acid (0.1 mg/mL)
Gallic acid (0.0050 g) was dissolved and adjusted the volume up to 50 mL by using distilled water in 50 mL volumetric flask
5.1.2 Preparation of extract solution (10 mg/mL) dissolved in 95% ethanol
5.1.2.1 Preparation of 10 mg/mL of rambutan extract
- Weigh rambutan extract powder 0.01 g and dissolve with 95% ethanol and after that adjust its volume up to 10 mL