Quantification of Neurotransmitters in Mouse Brain Tissue by Using Liquid Chromatography Coupled Electrospray Tandem Mass Spectrometry

Figure 4

The LC-MS/MS chromatograms of BH4 (a), AACA (b), dopamine (c), and dopamine-D₄ (d) using Polar-Imidazole (2.0 × 150 mm; i.d., 3 μm) and mobile phase ACN: DW (75 : 25, v/v, 10 mM ammonium formate).

(a)

(b)

(c)

(d)