DESCRIPTION
Guard column for Shodex OHpak SB series. Shipping solvent is 0.02% NaN3 (sodium azide) and can be replaced with 100% DMF for the analysis of polar polymers. pH range 3-10. Maximim concentration for other solvents is 100% methanol and 75% acetonitrile. Use PEEK coupler 220-91524-98 (1-piece, double ended) or 220-91524-98 (approx 3" PEEK tubing and fittings) to connect the guard to the analytical column.