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a solution of valerophenone in the mobile phase at a concentration of approximately | #chemicals

a solution of valerophenone in the mobile phase at a concentration of approximately

High performance liquid chromatography was used to determine assay values for the test articles. Prepare the mobile phase by dissolving 4.0 g of chloroacetic acid in 400 mL of water and adjusting the pH to 3.0 with ammonium hydroxide. Add 600 mL of acetonitrile to it, then filter and degas