Water Extract of Acori Graminei Rhizoma Attenuates Features of Rheumatoid Arthritis in DBA/1 Mice

Table 1

LC-IT-TOF MS conditions of Acori Graminei Rhizoma extract.

HPLC condition
Column	ACQUITY UPLC BEH C18 (2.1 × 150 mm, 1.7 μm)
Flow rate	0.21 mL/min
Injection volume	1 μL
Column temperature	40°C
	A: 0.1% formic acid in water
	B: 0.1% acetonitrile
Mobile phase	Time	A (%)	B (%)
	0	75	25
	20	50	50
MS condition
Ionization mode	ESI, positive
Capillary voltage (kV)	4.5
CDL voltage (V)	10
Detector voltage (kV)	1.67
CDL temperature	200°C
Heat block temperature	200°C
Nebulizing gas	N2, 1.5 L/min
Collision gas	Ar