Remove anionic contaminants from sample matrices and neutralize highly acidic samples to improve ion chromatography performance and facilitate trace ion analysis.
Remove inorganic anions and strong organic acids contaminants from sample matrices and neutralize highly acidic samples to improve ion chromatography (IC) performance and facilitate trace ion analysis. Performed prior to IC analysis, the Thermo Scientific™ Dionex™ OnGuard™ II A Cartridges are an off-line sample preparation technique that eliminates these matrix interferences using styrene-based, anion-exchange resin in the bicarbonate. Use them singly or in series, or pretreat up to 12 samples in parallel using the optional Dionex OnGuard Sample Prep Station.
Solve Tough Application Problems
Boost sensitivity, lower baselines and improve separations
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
Specifications
DescriptionNeutralizes highly acidic samples
For Use With (Equipment)Dionex OnGuard Sample Prep Station