Metrohm - Model Metrosep C 4 - 250/4.0 6.1050.430 - Cation Column
From Ion Chromatography - Columns
The Metrosep C 4 - 250/4.0 is the cation column with the greatest capacity in the C 4 series. It is predestined for applications which require the highest separating efficiency. Samples with extreme differences in concentrations can be analyzed reliably with this column. The performance capability of the column is demonstrated, for example, when analyzing feed water for which the requirement is the perfect quantification of 7 µg/L sodium in addition to 7 mg/L monoethanolamine (MEA). With the C 4 - 250/4.0, not only amines and transition metals, but also alkaline and alkaline earth metals can be determined in a single run.
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Technical Specifications
- Carrier material: Silica gel with carboxyl groups
- Column capacity: 25 µmol (K+)
- Column dimensions: 4.0 x 250 mm
- Eluents:
- 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
- Amine 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
- 18-crown-6: 0.05 mmol/L; 26.4 mg/2 L
- Acetone, 2.5%; 50 mL/2 L
- Housing material: PEEK
- Manufacturer: Metrohm AG
- Max. pressure: 25 MPa
- Maximum flow: 2.0 mL/min
- Organic modifier: Eluent: 0 - 100% acetone and acetonitrile (no alcohol)
- Sample: 0 - 100% acetone, acetonitrile, and alcohols
- Particle size: 5 µm
- pH range: 2–7
- Standard flow: 0.9 mL/min
- Temperatur range: 20–60 °C
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