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153-98-0 (unlabelled)
57354-65-1
Assurance® Grade Drinking Water Standards with Mercury for AA & ICP
62502-71-0
Made with acid and ASTM Type I water|Inorganic compounds and metals at 99
EC UHPLC guard column (analytical), NUCLEODUR PFP, 1.8 µm, 4x3 mm 5185-5865 153-98-0 (unlabelled)For 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
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