Table 1: Showing linear regression equation and LOD and LOQ of iridoids.

IridoidsRegression equation 𝑟 2 Test rangeLODLOQ

Plantarenaloside 𝑌 = 6 8 8 8 𝑥 8 6 0 9 0.99915.6–500  𝜇 g/mL11.4 ng38 ng
Boschnaloside 𝑌 = 7 7 7 6 𝑥 8 4 9 8 0.99915.6–500  𝜇 g/mL22.8 ng76 ng