Table 2. HPLC condition for organic acid analysis of fermented rice makgeolli with addition of Crepidiastrum sonchifolium (Maxim.) Pak & Kawano by various processing methods

Specification	Conditions
HPLC	Agilent 1260 Infinity II
Column	Supelcogel C-610H (300 mm×7.8 mm, 9 μm)
Osaka C18(150 mm×2.1 mm, 2.7 μm)
Mobile phase	0.1 M Phosphoric acid (H3PO4)
Analysis time	45 min
Flow rate	0.5 mL/min
Column temperature	30°C
Injection volume	20 μL
Detector	UV 210 nm