Dionex™ OnGuard™ II RP Cartridges

Remove hydrophobic substances such as aromatic dyes, some aromatic carboxylic acids, hydrocarbons, and surfactants from sample matrices to improve IC performance and facilitate low-level ion analysis. Thermo Scientific™ Dionex™ OnGuard™ II RP Cartridges are an off-line sample preparation technique that uses a macroporous divinylbenzene resin with very high selectivity for hydrophobic substances to eliminate these matrix interferences. Use these cartridges singly or in series, or pretreat up to 12 samples in parallel using the optional Thermo Scientific™ Dionex™ OnGuard™ Sample Prep Station.

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