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Table 3 Precision and accuracy study of the method

From: Characterization and determination of six flavonoids in the ethnomedicine “Dragon’s Blood” by UPLC-PAD-MS

Peak Compounds Precision (RSD %, n= 6) Accuracy (RSD %, n= 3)
Instrument Repeatability Low Medium High
1 Dracorhodin 1.3 1.4 102.8 (2.2) 96.2 (2.5) 98.2 (2.3)
2 4,6-Dihydroxy-2-methoxy-3- methyldihydrochalcone 0.8 2.1 94.2 (3.2) 94.7 (1.8) 95.3 (3.4)
3 4,6-Dihydroxy-2-methoxy-3- methylchalcone 1.6 3.1 99.3 (2.0) 97.7 (3.5) 100.6 (2.5)
4 (2S)-5,7-Dihydroxy- dihydroflavone 0.9 2.7 102.7 (2.8) 96.1 (1.9) 96.4 (4.9)
5 (2S)-5-Methoxyflavan-7-ol 2.5 3.8 99.9 (3.8) 101.0 (2.0) 99.8 (3.7)
6 (2S)-5-Methoxy-6- methylflavan-7-ol 1.5 2.7 101.5 (4.5) 99.8 (2.9) 98.7 (4.5)