Table 1.
Operating conditions of HPLC for the analysis of pinitol in black soybean

Items	Conditions
Instrument	Jasco HPLC system (Tokyo, Japan)
Detector/Temperature	Nano Quantity Analyte Detector (NQAD QT-500, Quant technologies, USA)
Column/Temperature	Rspak DC-613 (6mm×150mm, ShodexTM, Japan) / 70°C
Mobile phase	75% Acetonitrile
Flow rate	1.0 mL/min
Injection volumn	0 µL