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InGuard H Cartridge

The InGuard H cartridge is ideal for the removal of high levels of alkaline earth metals and transition metals from sample matrices. It is also used for the neutralization of highly alkaline samples such as sodium hydroxide or sodium carbonate. Carbonate can be reduced to very low levels following this pH reduction by passing the sample through a CRD 200. The InGuard H cartridge contains styrene-based, sulfonic acid resin in the hydronium form, the same as that used in OnGuard® II H cartridges. This resin is designed to have very high selectivity for polyvalent cations, such as calcium and transition metals.