A magnetic field generation and detection platform, comprising: a dielectric substrate (20; 30) having an exposed surface area (18; 38); separation field generating means (24a, 24b); and magnetic field detecting means (12a, 12b; 12); the magnetic field generation and detection platform being characterized in that: it is an integrated magnetic field generation and detection platform; said magnetic field detecting means (12a, 12b; 12) comprising a Hall sensor and being embedded in the dielectric substrate (20; 30) beneath the exposed surface area (18; 38); said separation field generating means (24a, 24b) comprising at least one current line embedded in the dielectric substrate (20; 30) beneath the exposed surface area (18; 38) and between the magnetic field detecting means (12a, 12b; 12) and the exposed surface area (18; 38); said at least one current line (24a, 24b) being embedded in the dielectric substrate (20; 30) at a lateral spaced apart position in relation to said magnetic field detecting means (12a, 12b; 12); wherein at least a portion of the exposed surface area (18; 38) of the dielectric substrate (20; 30) is functionalized with a biochemical agent that binds with a target analyte; whereby superparamagnetic particles adapted to specifically bind with said target analyte can bind specifically to said functionalized portion of the exposed surface area (18; 38) via the target analyte; wherein the at least one current line (24a, 24b) is such that magnetic forces generated when current runs through the at least one current line (24a, 24b) are sufficient to pull the unbound superparamagnetic particles away from the functionalized portion of the exposed surface area (18; 38); and wherein the magnetic field detecting means (12a, 12b; 12) are provided for detecting the remaining superparamagnetic particles on said functionalized portion of the exposed surface area (18; 38). a dielectric substrate (20; 30) having an exposed surface area (18; 38); separation field generating means (24a, 24b); and magnetic field detecting means (12a, 12b; 12); the magnetic field generation and detection platform being characterized in that: it is an integrated magnetic field generation and detection platform; said magnetic field detecting means (12a, 12b; 12) comprising a Hall sensor and being embedded in the dielectric substrate (20; 30) beneath the exposed surface area (18; 38); said separation field generating means (24a, 24b) comprising at least one current line embedded in the dielectric substrate (20; 30) beneath the exposed surface area (18; 38) and between the magnetic field detecting means (12a, 12b; 12) and the exposed surface area (18; 38); said at least one current line (24a, 24b) being embedded in the dielectric substrate (20; 30) at a lateral spaced apart position in relation to said magnetic field detecting means (12a, 12b; 12); wherein at least a portion of the exposed surface area (18; 38) of the dielectric substrate (20; 30) is functionalized with a biochemical agent that binds with a target analyte; whereby superparamagnetic particles adapted to specifically bind with said target analyte can bind specifically to said functionalized portion of the exposed surface area (18; 38) via the target analyte; wherein the at least one current line (24a, 24b) is such that magnetic forces generated when current runs through the at least one current line (24a, 24b) are sufficient to pull the unbound superparamagnetic particles away from the functionalized portion of the exposed surface area (18; 38); and wherein the magnetic field detecting means (12a, 12b; 12) are provided for detecting the remaining superparamagnetic particles on said functionalized portion of the exposed surface area (18; 38).