DEVICE FOR MEASURING MAGNETIC PARTICLES AND CORRESPONDING METHOD

摘要

The invention concerns a device (10) for the qualitative or quantitative measurement of a magnetically labelled analyte (12). The device (10) includes a coil arrangement (13, 18) for measuring the analyte (12) from a sample absorbed in a test base (11). The coil arrangement includes at least one measuring coil (13) and a reference coil arranged in connection with it. From the signal of the coil arrangement (13, 18) a change in inductance correlating to the content of the magnetically labelled analyte (12) is arranged to be detected. The change in inductance is arranged to be detected from a change (?A, ?f) in amplitude and/or phase appearing in the output signal (32) of the coil arrangement (13, 18), which is arranged to be measured at the frequency of the input signal (31). In addition, the invention also relates to a corresponding method.