EC UHPLC guard column (analytical), NUCLEODUR Phenyl-Hexyl, 1.8 µm, 4x2 mm E3TM4S Usable volume 5 mL

Usable volume 5 mL

21α(H)-30-Nor-29-methylhopane

D-alpha-Tocopherol

4-Dichloro-p-xylene

Lithium 10 mg/l for ICP-MS

EC UHPLC guard column (analytical), NUCLEODUR Phenyl-Hexyl, 1.8 µm, 4x2 mm E3TM4S Usable volume 5 mLFor protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary