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in 2-5% H2SO4
VISOCOLOR School Phosphate
Made with acid and ASTM Type I water|Inorganic compounds at 99
AS1KHO25-1
EC HPLC guard column (analytical), NUCLEOSHELL PFP, 2.7 µm, 4x3 mm 548-2159 in 2-5% H2SO4For 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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