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Table 3 Evaluation of the method performance (precision, recovery, and uncertainty measurement)

From: Anthraquinone in Indonesian infusion tea: analysis by HPLC–UV and risk assessment

Parameters Results
Spiked concentration 8.33 μg/L
Extracted concentration (average) 8.29 μg/L
Percent recovery 96.19–102.98% (average 99.52%)
N 7
RSD, % 2.25
CVHorwitz 32.94
2/3 CVHorwitz 21.96
Uncertainty 8.29 ± 0.42 μg/L