Minoxidil detection in cosmetics

Mobile phase: methanol: 0.3% trifluoroacetic acid aqueous solution=45:55(V:V)

Column: Supersil ODS2 5 µm4.6×250 mm

Flow rate: 1.0 mL/min

Wavelength: 230 nm

Injection volume: 10 µL

Temperature: 30 ℃