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Table 1 The purity of EGCG, detected by high performance liquid chromatography (HPLC) analysis

From: The effect of (-)-epigallocatechin gallate as an adjunct to non-surgical periodontal treatment: a randomized clinical trial

Prepared concentration (mg/mL)

Detected concentration (mg/mL)

Purity

Mean

1.0000

0.9326

93.26%

92.74 ± 0.74%

1.0000

0.9216

92.16%

1.0000

0.9221

92.21%