EC HPLC guard column (analytical), NUCLEODUR C18 Gravity-SB, 3 µm, 4x3 mm Nickel test Bisphenol A bis(2

Bisphenol A bis(2

006 µg/mL 1 atom ** ICP-OES 330

20830-75-5

Chloroacetic acid-d3

EC HPLC guard column (analytical), NUCLEODUR C18 Gravity-SB, 3 µm, 4x3 mm Nickel test Bisphenol A bis(2For 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