Research Article

Variation in Flavonoid Composition and Radical-Scavenging Activity in Ginkgo biloba L. due to the Growth Location and Time of Harvest

Table 2

Analytical characteristics of the HPLC method validation data.

StandardsIntraday RSD (%) ()Interday RSD (%) ()Regression equationLOD (μg ml−1)LOQ (μg ml−1)

Quercetin0.620.800.9950.040.16
Kaempferol0.851.460.9980.100.30
Isorhamnetin0.280.330.9990.200.80

: retention time, RSD: relative standard deviation, : correlation coefficient, LOD: limit of detection, and LOQ: limit of quantitation.