Table 2 Stability of GA in samples (n = 3).

From: A simple method for evaluation pharmacokinetics of glycyrrhetinic acid and potential drug-drug interaction between herbal ingredients

Sampleconcentration
(μg/mL(g))
freeze-thaw cycle RSD/%4 h at RT
RSD/%
8 h after EX RSD/%−20 °C for 2 weeks RSD%
Plasma0.510.52.91.96.6
5.04.11.25.55.0
15.05.12.05.89.3
Liver0.255.76.311.1
0.754.34.99.8
1.503.65.212.2
  1. —: Not done.