Macherey-Nagel Deactivated capillary without cage Phenyl-Sil deactivated ID: 0.53 mm, length: 25 m

Deactivated capillary columns (precolumns) with phenylmethyl (low-medium polar) surface for protection of the analytical column against contamination and extend its lifetime. Me-Sil is more inert than Phe-Sil, while Phe-Sil is less susceptible to contamination.