Research Article

Possible Involvement of µ Opioid Receptor in the Antidepressant-Like Effect of Shuyu Formula in Restraint Stress-Induced Depression-Like Rats

Figure 1

HPLC chromatogram of Shuyu preparation. Six major constituents were detected. The concentration, linearity, limit of detection (LOD), limit of quantification (LOQ), and interbatch variation (CV) are listed in Table 1.