Simultaneous Separation of Cations and Anions
Primesep 100 and Primesep B columns connected in series allow the quantitation of sodium chloride and potassium bromide ions in one injection. The Primesep B column retains the chloride and bromide anions by anion exchange, and the Primesep 100 retains the sodium and potassium captions by cation exchange. The separation uses a mobile phase mixture of water, acetonitrile (MeCN, ACN) and trifluoroacetic acid (TFA) with evaporative light scattering detection (ELSD).
Methodenparameter
| Column | Primesep 100, Primesep B , 4.6×50 mm, 5 µm, 100 Å |
|---|---|
| Mobile Phase | MeCN/H2O |
| Buffer | AmAc pH 5.0 |
| Flow Rate | 1.0 mL/min |
| Detection | ELSD50C |