C - Chemistry – Metallurgy – 12 – Q
Patent
C - Chemistry, Metallurgy
12
Q
150/11
C12Q 1/56 (2006.01)
Patent
CA 1197763
ABSTRACT OF THE DISCLOSURE Disclosed is a device for the quantitative determination of heparin in mammalian blood plasma, a method for the preparation of such device and a method for determining the plasma's heparin concen- tration using the device. The device, which is prepared using a freeze-drying technique, comprises a first upper layer of a carrier matrix material con- taining a buffer, AT-III and thrombin and a second, lower layer of a carrier matrix containing a thrombin sensitive fluorogenic or chromogenic substrate being capable of interacting with thrombin in such a manner that a time-related chemical change detectable by fluorometric or spectrophotometric means takes place when thrombin and the substrate are contacted in a suitable liquid environment.
434234
Greenquist Alfred C.
Sommer Ronald G.
Miles Laboratories Inc.
Osler Hoskin & Harcourt Llp
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