Offline IC Sample Preparation Cartridges

Dionex™ OnGuard™ II RP Cartridges (Thermo Scientific™)

Remove hydrophobic substances, aromatic carboxylic acids, hydrocarbons, and surfactants from sample to improve IC performance. Pretreat 12 samples in parallel.

Dionex™ OnGuard™ II H Cartridges (Thermo Scientific™)

Remove alkaline earth, transition metals and neutralize highly alkaline samples to improve IC performance and facilitate trace analyses. Pretreat up to 12 samples in parallel.

Dionex™ OnGuard™ II M Cartridges (Thermo Scientific™)

Remove transition metals and eliminate alkali and alkaline earth metals to improve IC performance and facilitate low-level ion analysis. Pretreat 12 samples in parallel.

Dionex™ OnGuard™ II Ba/Ag/H Cartridges (Thermo Scientific™)

Remove high levels of alkaline earth, transition metals, and carbonate, and neutralize caustic samples to improve IC performance and facilitate trace analysis.

Dionex™ OnGuard™ II P Cartridges (Thermo Scientific™)

Remove the phenolic fraction of humic acids, tannic acids, lignins, anthocyanins, and azodyes from sample to improve IC performance. Pretreat 12 samples in parallel.

Dionex™ OnGuard™ PolyVial Sample Reservoir Tubes (Thermo Scientific™)

Use these sample reservoir tubes to collect samples after removal of matrix interferences on the Thermo Scientific™ Dionex™ OnGuard™ Workstation.

Dionex™ OnGuard™ II Ag Cartridges (Thermo Scientific™)

Remove chloride, bromide, and iodide from sample matrices off-line to improve IC performance and facilitate trace analyses. Pretreat up to 12 samples in parallel.

Dionex™ OnGuard™ 18 Gauge Needle (Thermo Scientific™)

Use these needles in the Thermo Scientific™ Dionex™ OnGuard™ Workstation to connect to Dionex OnGuard II Cartridges and direct the flow of liquid into collection vials.

Dionex™ OnGuard™ II A Cartridges (Thermo Scientific™)

Remove anionic contaminants from sample matrices and neutralize highly acidic samples to improve ion chromatography performance and facilitate trace ion analysis.

Dionex™ OnGuard™ II Ba Cartridges (Thermo Scientific™)

Remove high concentrations of sulfate from sample matrices to improve IC performance and facilitate low-level ion analysis. Pretreat up to 12 samples simultaneously.

Dionex™ OnGuard™ II Ag/H Cartridges (Thermo Scientific™)

Remove chloride, bromide, and iodide, trap silver and other cations, and carbonate, and neutralize caustic from sample matrices to improve IC performance.

Dionex™ OnGuard™ Workstation (Thermo Scientific™)

Use the Thermo Scientific™ Dionex™ OnGuard™ Workstation with  Dionex™ OnGuard™ II Cartridges to pretreat up to 12 samples in parallel semi-automatically prior to ion chromatography.

Dionex™ OnGuard™ Valve (Thermo Scientific™)

Use this stopcock luer in the Thermo Scientific™ OnGuard™ Sample Prep Station for online sample pretreatment using Thermo Scientific™ Dionex™ OnGuard™ II Cartridges.

Dionex™ OnGuard™ II Na Cartridges (Thermo Scientific™)

Remove high levels of alkaline earth and transition metals from sample matrices without acidifying the sample to improve IC performance. Pretreat 12 samples in parallel.