Recovery of Total Citric Acid by HPLC | ||
% Level | Citric Acid | |
Amount Added (µg/mL) | Average % Recovery | |
50 | 300 | 98.5 |
75 | 450 | 99.7 |
100 | 600 | 99.4 |
125 | 749 | 99.6 |
150 | 899 | 99.0 |
Overall Avg. % Recovery | 99.3 | |
Overall % RSD | 0.6 |