NUCLEODUR® C18 Pyramid is an octadecyl modified silica phase with polar endcapping, especially designed for use in eluent systems of up to 100% water.

• High purity spherical silica gel
• Hydrophobic, polar RP phase with high stability in 100% aqueous eluents
• Separation mechanism based on hydrophobic and polar interactions

C18 Pyramid is well-suited for separations of polar compounds like water-soluble vitamins, organic acids, and nucleic acid bases as well as for polar analgesics, and penicillin antibiotics - also with LC-MS detection.

EC guard columns are used for analytical EC columns with the Column Protection System guard column holder (554-5851).

VP guard columns are used for preparative VarioPrep columns with the following guard column holders:
8,0×10 mm (Int.Ø×L) guard column for 8,0 and 10,0 mm (Int.Ø) preparative column with holder MANA718251.
16,0×10 mm (Int.Ø×L) guard column for 16,0 and 21,0 mm (Int.Ø) preparative column with holder MANA718256.
32,0×15 mm (Int.Ø×L) guard column for 32,0 and 40,0 mm (Int.Ø) preparative column with holder MANA718253.
50,0×15 mm (Int.Ø×L) guard column for ≥50,0 mm (Int.Ø) preparative column with holder MANA718255.