Research Article
Development and Validation of Near-Infrared Methods for the Quantitation of Caffeine, Epigallocatechin-3-gallate, and Moisture in Green Tea Production
Table 7
Results of robustness checks.
| Components | Method | No. of samples | Mean | Variance | value | F-test | t-test |
| Caffeine | HPLC | 60 | 2.69 | 1.329 | 0.832 | 0.688 | NIR | 60 | 2.63 | 1.364 |
| Moisture content | Lamdry | 60 | 46.51 | 769.770 | 0.989 | 0.984 | NIR | 60 | 46.58 | 786.460 |
| EGCG | HPLC | 60 | 4.27 | 4.069 | 0.895 | 0.812 | NIR | 60 | 4.21 | 3.887 |
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