Research Article

A Network Pharmacology-Based Approach for Exploring Key Active Compounds and Pharmacological Mechanisms of Tangshen Formula for Treatment of Diabetic Nephropathy

Figure 12

The TIC chromatographs of quercetin, naringenin, kaempferol, and isorhamnetin in blank solution (A1–A4), standard solution spiked at limit of quantitation (B1: 0.01 ng/mL, B2: 0.005 ng/mL, B3: 0.2 ng/mL, and B4: 0.01 ng/mL) and sample solution (C1–C4).