Gradient Valve Standard

Kit contains standards appropriate for assessment of Alliance Gradient Proportioning Valve. 1X5mL standard solution contains: Propyl Paraben 0.56gm/L (+/-5%) (Purity >= 99%) in 100% HPLC Grade Methanol.

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You might also be interested in reviewing the Waters Preparative Chromatography Mix Standard; the Quality Control Reference Material portfolio is a unique collection of standards and mixtures that allow the user to evaluate and benchmark their chromatography system before analysis of critical material. The Preparative Chromatography Standard is 5 mg/mL each of Diclofenac sodium salt, Diphenhydramine hydrochloride, and Flavone in DMSO-- this standard mix should be used to confirm the benchmark performance of your preparative or purification system. This particular QC Reference Material is a specially formulated mix that includes a void marker, neutral, acidic, and basic compounds. It can be used with a variety of column chemistries, dimensions, and system hardware.