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OnGuard II H Cartridge

The OnGuard II H removes high levels of alkaline earth and transition metals from sample matrices and neutralizes highly alkaline samples such as sodium hydroxide or sodium carbonate. Carbonate can then be removed by sparging the sample.

These cartridges contain 16% cross-linked, styrene-based, sulfonic acid resin in the hydrogen form. This resin is designed to have very high selectivity for multivalent cations such as calcium and transition metals.