Separation of seven anions and acetate using IonPac AS22 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

Background and noise was suppressed by Xenoic® XAMS membrane suppressor with the Xenoic® ASUREX automatic regenerator.

IonPac AS22 with XAMS suppressor

Ion chromatography of anions on a IonPac AS22 column (250×4 mm) using an eluent containing 4.5 mM Na₂CO₃ and 1.4 mM NaHCO₃ in water pumped at 1.2 mL/min at 24 °C. Background reduced to ~17 µS/cm by XAMS suppressor with ASUREX-A100 automatic regenerator. Eluent pumping and conductivity detection by Metrohm 761 Compact IC. Injection of 20 µL of F¯ (5 mg/L), acetate (20 mg/L), Cl¯ (10 mg/L), NO₂¯ (15 mg/L), Br¯, NO₃¯ (25 mg/L), HPO₄²¯ (40 mg/L), SO₄²¯ (30 mg/L) in water.

Diduco is a leading provider of professional services in high performance liquid chromotography and producer of the Xenoic® XAMS chemical suppressor and ASUREX automatic regenerator for ion chromatography.

Diduco AB
Tvistevägen 48C
90736 Umeå

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