Preparation of material to control precision of calcium selective electrodes.
A simple procedure is described for the preparation of a stable precision quality control material for use in the measurement of level of ionised calcium in serum at or near the reference range. Repeat analyses on a Nova 2 ionised calcium analyser of serum pools stored at different temperatures over a period of three months showed coefficients of variation less of less than 4%.
D002118:Calcium / Q000097:blood*; D004355:Drug Stability; D004566:Electrodes / Q000592:standards; D005615:Freezing; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009994:Osmolar Concentration; D011786:Quality Control
D002118:Calcium