![EC HPLC guard column (analytical), NUCLEOSIL 100-5 C18 HD, 5 µm, 4x3 mm [AAK1-500ML][ALFREDH] and then combine the three](https://cdn.shopify.com/s/files/1/0296/2155/1241/products/HPLC_guard_column_EC_4-3_NUCLEOSIL_NUCLEODUR_NUCLEOSHELL_chromatography_9d6dad5f-2cd6-40a3-b31a-f3bf6bf50945.jpg?v=1740396391)
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and then combine the three solutions at 50 – 100x dilutions to evaluate if more spectrally complex solutions (i
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EC HPLC guard column (analytical), NUCLEOSIL 100-5 C18 HD, 5 µm, 4x3 mm [AAK1-500ML][ALFREDH] and then combine the threeFor 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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