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Thermo Scientific™ Dionex™ IonPac™ NS2 μ5 m Analytisk& Vagtsøjler
Beskrivelse
Få højtydende analyse af hydrofobe aminer og syrer ved hjælp af undertrykt ledningsevnedetektion ved hjælp af Thermo Scientific™ Dionex™ IonPac™ NS2 silica-baserede, højeffektive, omvendt-fase kolonner. Denne søjle er designet til mobilfase ionkromatografi (MPIC ) applikationer, der bruger eluenter, der indeholder: trifluoreddikesyre (TFA), heptafluorsmørsyre (HFBA), hexansulfonsyre (HSA), octansulfonsyre (OSA), tetrapropylammoium (TPA) borat, tetrabutylammonium (TBA) borat og natriumborat. De Dionex IonPac NS2-søjlen er også velegnet til konventionel omvendt-fase væskekromatografi (LC) applikationer.
Main column features include:
- Excellent resolution
- Good peak shape
- High efficiency
- Rugged packed bed
Anions typically use 5–10mM sodium borate, 0.5–5mM TPA, or TBA borate pH 8–9 prepared from boric acid and the corresponding hydroxide. When using gradient elution with a Thermo Scientific™ Dionex™ ASRS™ Anion Self-Regenerating Suppressor, we recommend maintaining constant sodium/TBA concentration and varying the organic solvent.
Cations typically use 0.5–10 mM TFA, HFBA, HSA or OSA. When using gradient elution with a Thermo Scientific™ Dionex™ CSRS™ Cation Self-Regenerating Suppressor, we recommend maintaining constant acid concentration and varying the organic solvent.
Solvent composition is limited based on the solvent compatibility of the suppressor. Flush all solvents out of the suppressor with DI water before shutting down the system. See suppressor manuals for detailed instructions and solvent compatibility limits.
Suppressor Operational Guidelines- The 4mm Thermo Scientific™ Dionex™ AERS™ Anion Electrolytically Regenerated Suppressors, Dionex ASRS suppressors, Thermo Scientific™ Dionex™ CERS™ Cation Electrolytically Regenerated Suppressors, and Dionex CSRS suppressors are compatible with ≤40% acetonitrile and require operation in the external water mode.
- Thermo Scientific™ Dionex™ AMMS™ Anion MicroMembrane™ Suppressors are compatible with all solvent conditions with 5–50mN sulfuric acid at 2–10mL/min.
- Thermo Scientific™ Dionex™ CMMS™ Cation MicroMembrane™ Suppressors are compatible with all solvent conditions with 20–100mM tetrabutylammonium hydroxide at 2–10mL/min.
- See suppressor manuals for detailed instructions and solvent compatibility limits.
Tekniske data
Tekniske data
| Kolonnetype | Guard Column |
| Kolonnekemi | Polar-Embedded C18 |
| Flowhastighed | 0.5 to 1.0 (Recommended) |
| Til brug med (applikation) | Mobile Phase Ion Chromatography (MPIC) Applications |
| Maks. Tryk | 4000 psi (275 bar) |
| Partikelstørrelse | 5 μm |
| Stationær fase | IonPac NS2 |
| Emballagemateriale | Spherical, high-purity, porous |
| pH | 2.0 to 9.5 |
| Porestørrelse | 120 Å |
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