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50 ±% Increments 2
part 5- dichloromethane (158
The refill reels of indicator paper come singly sealed to ensure long-term stability and protection against many external influences
1 µg/mL (1 ppm) for ICP-MS in 2% HNO3
EC UHPLC guard column (analytical), NUCLEODUR C18 HTec, 1.8 µm, 4x3 mm 54525-RC 50 ±% Increments 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
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