Table 8.
Intra-day repeatability for quantification of citric acid in tomato.
| Compound | HPLC | GC-MS | ||||||
|---|---|---|---|---|---|---|---|---|
| Repeats | Average in mg/l | SD in mg/l |
SD in % |
Repeats | Average in mg/l | SD in mg/l |
SD in % |
|
| Citric acid | 4 | 4553 | 145 | 3.2 | 4 | 4526 | 145 | 3.2 |
| Malic acid | 4 | 511 | 15 | 2.9 | 4 | 607 | 15 | 2.4 |