EC UHPLC guard column (analytical), NUCLEODUR C8 Gravity, 1.8 µm, 4x2 mm 5190-8402 Assurance® Grade Trace Metals without

Assurance® Grade Trace Metals without Mercury for AA & ICP

Assurance® Grade Cesium

2-Tetrabromoethane

1152311-62-0

Cholest-4-ene

EC UHPLC guard column (analytical), NUCLEODUR C8 Gravity, 1.8 µm, 4x2 mm 5190-8402 Assurance® Grade Trace Metals withoutFor 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