A method of measuring a retention force of a biomedical specimen in the form of an electrically conductive structure located on a carrier, comprising:
- providing an alternating magnetic field in the proximity of the specimen, thereby inducing a magnetic force on the specimen;
- varying the magnetic field;
- detecting the start of decoupling of the specimen from the carrier;
- and
- determining the retention force by correlating the magnetic force at the start of the decoupling with the magnetic field at the start of the decoupling.