(a)

(b)

(c)

Figure 2: Typical chromatograms of (a) blank brain dialysate; (b) blank brain dialysate spiked with ASA (1.5 μg/mL) and SA (1.5 μg/mL) and; (c) brain sample containing SA (1.3 μg/mL) collected at 105–120 min after administration of aspirin (30 mg/kg, i.v.). (1) Acetylsalicylic acid (ASA); (2) salicylic acid (SA).