QC Controls - R&D Systems

Low, Medium and High Controls
For Research Use Only. Not for use in diagnostic procedures

Intended Use

For use as quantitative controls for the determination of cytokine concentrations in biological fluids. Concentrations have been assigned using R&D Systems Quantikine Kits


Ingredients: Controls are prepared in porcine serum with preservatives. They contain recombinant human cytokines at low, medium and high concentrations. Controls are supplied lyophilized.

Reconstitution: Reconstitute each vial with 2.0 mL distilled on deionized water. NOTE: When using for IL-6, reconstitute with 1.5 mL distilled or deionized water. When using for VEGF (with cell culture supernate samples), reconstitute with 2.0 mL distilled or deionized water.

Storage and Stability: Unreconstituted Controls should be stored at 2-8° C and are stable for at least 6 months from date of receipt. Depending on the analyte of interest, reconstituted controls may be stable when stored at =-20°C. Users should evaluate the frozen stability of the controls in their application or discard after use.


Controls should be assayed in the same manner as unknown specimens.


The results obtained with these controls depend upon several factors associated with methods and instrumentation. Test systems other than those supplied by R&D Systems may result in values tat differ from those printed on this Product Information Sheet.

Expected Values

Due to possible variations in techniques and methodologies, it is recommended that each laboratory determine its own target range. Laboratories using other test systems should establish their own acceptable range as these assays may produce different values.