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16416-31-2
N-Nitroso-4-(2-hydroxyethyl)-piperazin-2-one
446254-80-4
Element properties Gallium
Usable volume 10 mL
EC HPLC guard column (analytical), UNIVERSAL RP, 4x2 mm E3TL4S 16416-31-2For 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