PoraPak N (50/80), 20g Back Catalog number: C-2PPKN Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended C-MS13X Molecular sieve 13X, 20g Price on request 730610 Chromab. sorbent SB, 100g 357,78 € 711350.10 POLYGOSIL 60-10 C18, 10g 183,64 €