Fig. 5. Chromatograms of several anions in real wine samples. Samples: (a) white
wine, (b) red wine (vintage of 2008); Ions: 1. sulphite, 2. phosphate and 3. sulphate;
operating conditions: separation column, Shodex IC SI-90 4E with 4.0 mm
i.d. 250 mm; mobile phase, 0.8 mM Na2CO3, 6.0 mM NaHCO3, 5.0 (v/v)% acetone;
column temperature, 30 C; flow rate of mobile phase, 1.0 mL/min.