Table 3. HPLC conditions for analysis of vitamin C
Instrument
Agilent HPLC
Solvent
Acetonitrile:50nM NH
4
H
2
PO
4
= 70:30 (v/v)
Flow rate
1.0 mL/min
Wavelength
254 nm
Column
YMC-Pack Polyamine II (4.6×250 mm, 5 μm, Japan)
Oven temperature
40°C
Injection volume
20 μL