Separation of nine inorganic anions including chlorite and bromate using Shodex IC SI-52 4E 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.

Shodex IC SI-52 4E with XAMS suppressor

Ion chromatography of anions on a Shodex IC SI-52 4E column (250×4 mm) using an eluent containing 3.6 mM Na₂CO₃ in water pumped at 0.8 mL/min at 24 °C. Background reduced to ~16 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¯(2 mg/L), ClO₂¯, BrO₃¯ (1 mg/L), Cl¯ (10 mg/L), NO₂¯ (5 mg/L), Br¯ (10 mg/L), NO₃¯ (30 mg/L), HPO₄²¯ (15 mg/L), SO₄²¯ (10 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
Sweden

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