C - Chemistry – Metallurgy – 12 – Q
Patent
C - Chemistry, Metallurgy
12
Q
150/15.1, 150/3.
C12Q 1/60 (2006.01) C12N 9/96 (2006.01) C12Q 1/26 (2006.01)
Patent
CA 1198040
Abstract of the Disclosure Stabilized enzymes useful in the diagnostic assay of total cholesterol are prepared by combining three separately prepared reagents: (1) a cholesterol esterase reagent; (2) cholesterol oxidase reagent; and (3) a saline diluent reagent. The cholesterol esterase reagent is prepared by dissolving a salt of cholic acid in a buffer solution providing a pH within the range of about 4 to about 9. To this solution is added a cholesterol esterase. The solution is then mixed with a polyhydroxy organic compound and TRITON-X-100. A cholesterol oxidase and a polyhydroxy organic compound are each dissolved in separate portions of buffer solution to make the cholesterol esterase reagent. The saline diluent solution is prepared by dissolving potassium iodide in water and adding a polyhydroxy organic compound. The resultant three reagents, when combined, provide a stabilized enzyme solution having utility in the total cholesterol assay of a serum sample. The combined reagents have utility in a total oxygen consump- tion method of analysis of total cholesterol, which analysis method is also disclosed.
380812
Hirons & Rogers
Modrovich Ivan E.
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