Table 2 Regression equation, linear range, limit of detection (LOD), limit of quantification (LOQ), precision, repeatability, stability, and recovery of 2-benzoxazolinone and acteoside in NBLG

Regression equation

y = 17.67x + 15.04

y = 15.73x-19.73

Linear range (µg/mL)

1.59 − 1016.00

1.73 − 1110.00

Correlation coefficient, R²

1.0000

0.9999

LOD (µg/mL)

0.43

0.42

LOQ (µg/mL)

0.88

0.85

Precision (RSD%, n = 6)

0.60

0.80

Repeatability (RSD%, n = 6)

0.90

1.20

Stability (RSD%, n = 9)

1.60

1.00

Recovery (mean; RSD%, n = 6)

102.70; 0.60

97.20; 0.90