METHOD FOR DETERMINING AN ANALYTE BY MEANS OF AN EXTRACTION LAYER

摘要

The invention concerns a method for determining an analyte in a liquid sample by means of a test system consisting of at least two compartments wherein the detection reactions necessary to determine the analyte in the liquid sample 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 characterized in that the two compartments are separated 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 and that at least one other substance which, as a capture substance, can selectively enrich the indicator substance in the second compartment, is present in an immobilized form in the second compartment. Other subject matters of the invention are test systems for carrying out such methods and the use of these test systems for the determination of analytes according to the invention.