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Table 2 Calibration curves, LODs, and LOQs for the four flavonoids (1–4)

From: Flavonoids with α-glucosidase inhibitory activities and their contents in the leaves of Morus atropurpurea

Flavonoids Calibration curvea R2 P Test range (μg/mL) LODb(ng) LOQc(ng)
1 y = 20.981x-29.365 0.9997 <0.001 0.98 — 500.00 0.49 1.64
2 y = 32.967x + 16.675 0.9995 <0.001 1.26 — 80.60 0.73 2.42
3 y = 22.738x + 6.6695 0.9994 <0.001 0.20 — 100.00 1.32 4.39
4 y = 33.411x + 10.376 0.9992 <0.001 0.20 — 100.00 1.20 3.99
  1. ay = peak area and x = concentration (μg /mL).
  2. bLimit of detection (S/N = 3).
  3. cLimit of quantification (S/N = 10).