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20830-75-5
006 µg/mL 1 atom ** ICP-OES 330
An MS/MSD pair is used to document the bias and precision of a method in a given sample matrix
1000ug/mL HOLMIUM 500mL
1005 C 5mL Syringe (1/4-28)
EC HPLC guard column (analytical), NUCLEODUR C18 Gravity-SB, 3 µm, 4x3 mm Nickel test 20830-75-5For 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