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Clinical Chemistry 29: 793-799, 1983;
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Clinical Chemistry, Vol 29, 793-799, Copyright © 1983 by American Association for Clinical Chemistry

Creatine kinase response surfaces explored by use of factorial experiments and simplex maximization

DM Fast, EJ Sampson, VS Whitner and M Ali

We conducted a five-component, five-level response-surface experiment to optimize the pH and the concentrations of magnesium, creatine phosphate, adenosine diphosphate, and buffer in an assay for creatine kinase. Under optimal conditions, creatine kinase activity was about 5% greater than that obtained with a previously reported assay (Clin Chem 23: 1569, 1977). We also applied a simplex maximization algorithm to the response-surface equation to locate areas of maximum sensitivity. Reaction conditions for two such areas were found, each yielding approximately 11% more activity than with the previously reported method.




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Copyright © 1983 by the American Association for Clinical Chemistry.