Test system for determining an analyte in a liquid sample

摘要

A test system for determining an analyte in a liquid sample is provided comprising at least two compartments, wherein the detection reactions necessary to determine the analyte are carried out in a first compartment and an analytical determination of at least one substance which participates in the detection reactions and is different from the analyte, the indicator substance, takes place in a second compartment. The two compartments are separated from one another in a manner which allows the indicator substance to pass into the second compartment and at least partially prevents passage of other substances that could interfere with the analytical determination of the indicator substance in the second compartment. At least one other substance is present in an immobilized form in the second compartment which, as a capture substance, selectively enriches the indicator substance in the second compartment. The indicator substance is not a coenzyme and at the same time the capture substance is not a catalytically inactive coenzyme-binding protein.