| 30(4) |
L7 |
SymmetryShield RP8 |
Content of . . . . . . . . |
Vinyilpyrrolidone.4.6 mm x 25 cm, 5 µm, manufacturer Waters Corp. Guard column, L7 Nucleosil 120-5-C8 4.0 mm x 30 mm, manufacturer Macharey-Nagel. Alternative guard column Zorbax Ace C-8, 4.6 mm x 30 mm, 5 µm, manufacturer Agilent Tech. |