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42522-59-8
100x N 11 PP snap/crimp neck vials with integrated glass insert
000 ppm) for AA and ICP in 5% HNO3
68427-22-5
EC UHPLC guard column (analytical), NUCLEODUR Sphinx RP, 1.8 µm, 4x2 mm [AAAG1-500ML][JMPRICES] 42522-59-8For 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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US$ 6775.00