Compound

Amount added (µg mL⁻¹)

Amount found

 Recovery (%)

Average Recovery %

Ascorbic acid

48

47.96

99.92

99.37

60

59.23

98.73

72

71.62

99.48

Gallic acid

8

7.94

99.27

98.68

10

9.87

98.77

12

11.76

98.01