Column:

Polar-Prophylamide, 5 μm, 120 ? , 4.6 x 250 mm

Mobile phase:

Acetontrile : 0.2% Acetic acid = 80 : 20 ( v/v )

Flow rate:

1.0 mL/min

Temperature:

Room temperature

Detection:

ELSD (drift tube temperature: 60℃, gas flow rate: 2.0 L/min)

Injection volume:

10 μL

Sample:

0.5 mg/mL Stachydrine hydrochloride in 70% Ethanol 1.Stachydrine hydrochloride （鹽酸水蘇堿）