HPLC Analysis of Diuretic Drugs on Ascentis^® C18

column

Ascentis C18, 15 cm x 4.6 mm I.D., 5 μm particles (581324-U)

mobile phase

[A] 10 mM monobasic potassium phosphate (pH 3.0 with phosphoric acid); [B] acetonitrile; (A:B, 40:60)

flow rate

1 mL/min

column temp.

35 °C

detector

UV, 234 nm

injection

10 μL

sample

10 μg/mL each in mobile phase