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Thermo Scientific™

Dionex™ OnGuard™ II Na Cartridges, 2.5mL

Related applications:

Industrial Chromatography

Remove high levels of alkaline earth and transition metals from sample matrices without acidifying the sample. Thermo Scientific™ Dionex™ OnGuard™ II Na Cartridges are an off-line sample preparation technique that uses 16% cross-linked, styrene-based, sulfonic acid resin in the sodium form to eliminate these matrix interferences to improve IC performance and facilitate low-level ion analysis. Use them singly or in series, or pretreat up to 12 samples in parallel using the optional Dionex OnGuard Sample Prep Station.
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This resin has very high selectivity for multivalent cations such as calcium, magnesium, and transition metals.

Solve Tough Application Problems

  • Boost sensitivity, lower baselines, and get better separations by removing phenolics, metals, cations, anions, hydrophobic substances, and more
  • Achieve reproducible trace-level determinations in concentrated matrices
  • Increase the lifetime of your analytical columns
  • Use for a wide range of matrices thanks to wide pH stability
  • Supports applications with choice of 1cc and 2.5cc formats, as well as syringe barrel format for robotic processing (custom order)

Easy-to-Use, Leak-Free

  • Leak-free, no-channeling cartridge
  • Quick, secure Luer inlet connections
Performance Guaranteed
  • Ships with a Certificate of Analysis that verifies capacity, performance and cleanliness
Pretreat 12 Samples Simultaneously
  • Use the optional Dionex OnGuard Sample Prep Station and OnGuard Sample Pretreatment Cartridges