| 摘要 |
<p>The object of the invention is to provide a reagent for quantitatively determining creatine kinase with improved storability in liquid form as well as a method for quantitatively determining creatine kinase with stable measurements. Disclosed are a method for quantitatively determining creatine kinase, which comprises activating creatine kinase in a sample in an aqueous medium in coexistence with a trivalent phosphorus compound and a sulfhydryl-containing compound and then determining creatine kinase activity; a method for stabilizing a sulfhydryl-containing compound, which comprises allowing a trivalent phosphorus compound to coexist with a sulfhydryl-containing compound; and a reagent for quantitatively determining creatine kinase, which comprises a trivalent phosphorus compound, a sulfhydryl-containing compound, and a reaction substrate for creatine kinase.</p> |
