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Chrysene-trans-1
Hexachlorobenzene
Valve Model ML500 Valves Valve Model Description Dispenser
127I16O2 *ICP-OES D
000 ppm solutions chemically stable for years in 1% HNO3 / LDPE container
EC HPLC guard column (analytical), NUCLEODUR Phenyl-Hexyl, 3 µm, 4x3 mm [203349][MICROLAB] Chrysene-trans-1For 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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