Patent ID: 6995021

Claim:
A method for qualitative and quantitative detection of analytes, wherein an elongated migration base including an area for binding a magnetically marked analyte is used in the detection of an analyte in a sample, the method including the steps of: receiving the sample on the migration base; allowing the sample to spread on the migration base into the said area; arranging a receiving coil that is operated by alternating current having at least one set frequency fed to at least one driver coil; arranging the migration base in connection with the receiving coil; and detecting a change in inductance from the said frequency of the receiving coil in the presence of the sample wherein said change in inductance correlates to the amount of the magnetically marked analyte in the sample; wherein the said receiving coil is one of a set pair of receiving coils which are galvanically connected to each other and said set pair of receiving coils and driver coil are placed one inside an other.