Dionex IonPac CS12A Analysis of 22% Phosphoric Acid - ERD 500 - ERS 500e - ERS 500 Carbonate - DRS 600 - Dionex IonPac CS12A Analysis of 22% Phosphoric Acid - ERD 500 - ERS 500e - ERS 500 Carbonate - DRS 600

Sample

100 µL of 22% phosphoric acid neutralized in the Dionex CDRS 600

Concentrator Column

Low Pressure Trace Cation Concentrator (i.e. Dionex IonPac TCC-XLP1, Item # 063889)

Guard Column

Dionex IonPac CG12A Guard Column

Analytical Column

Dionex IonPac CS12A Analytical Column

Eluent

20 mM Methanesulfonic acid (MSA)

Eluent Flow Rate

1.0 mL/min

Electrolytic Suppressor

Dionex Cation Dynamically Regenerated Suppressor, Dionex CDRS 600

Recycled Eluent Mode

or Chemical Suppressor

Dionex Cation Chemically Regenerated Suppressor, Dionex CCRS 500

Chemical Regenerant

100 mN TBAOH

Expected Background Conductivity

20 mM MSA: <1 µS

Expected System Operating Back Pressure

Without Guard: 1,400 psi (9.65 MPa)

With Guard: 1,850 psi (12.75 MPa)