EC HPLC guard column (analytical), NUCLEOCEL DELTA RP S, 5 µm, 4x3 mm [88987][MICROLAB] 68291-97-4

68291-97-4

AS1KAL50-1

4-n-Nonylphenol monoethoxylate

73575-56-1

5 • 2 • 5 • 10 • 25 • 50  mg/L NO₂⁻

EC HPLC guard column (analytical), NUCLEOCEL DELTA RP S, 5 µm, 4x3 mm [88987][MICROLAB] 68291-97-4For 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