Metrohm USA, Inc. Metrosep C 4 - 50/4.0 6.1050.450

ApplicationRange - Applications Li+ , Na+ , K+ , Rb+ , Cs+ , Mg2+ , Ca2+ , Sr2+ , Ba2+ , NH4+ Alkylamines Very rapid separations Simple sample matrix Organic Modifier - Eluent: 0 - 100% acetone and acetonitrile (no alcohol) Sample: 0 - 100% acetone, acetonitrile and alcohols Regeneration - Organic contamination: Rinse the column in the opposite direction to the flow at 0.9 mL/min for 1 h with ultrapure water, then for 1 h with acetonitrile/water (40/60), and finally for 1 h with ultrapure water. Inorganic contamination: Rinse the column in the opposite direction to the flow with 10 mM HNO3 + 4 mM dipicolinic acid for 1 h at a flow rate of 0.9 mL/min. StandardEluent - Nitric acid / dipicolinic acid eluent (standard eluent) Nitric acid (c = 1 mol/L): 1.7 mmol/L; 3.4 mL/2 L Dipicolinic acid: 0.7 mmol/L; 234 mg/2 L Nitric acid eluent Nitric acid (c = 1 mol/L): 2.0 mmol/L; 4 mL/2 L Storage - In the eluent or in ultrapure water Capacity - 5 µmol (K+) Housing material - PEEK Carrier material - Silica gel with carboxyl groups Manufacturer - Metrohm AG Particle size - 5 µm Standard flow - 0.9 mL/min Maximum pressure - 25 MPa Maximum flow - 2.0 mL/min pH range - 2–7 Column dimensions - 4.0 x 50 mm Temperature range - 20–60 °C