Abstract: Various embodiments of the present disclosure relate to a method for analyzing target compounds from a fluid or dried biological sample by using a microfluidic sample device including a hollow cartridge and an absorbent body unit.

Abstract: Various embodiments of the present disclosure relate to a method for analyzing target compounds from a fluid or dried biological sample by using a microfluidic sample device including a hollow cartridge and an absorbent body unit.

Abstract: The disclosure relates to a method for the selective separation of proteins from liquid biological materials which, based on the total quantity, contain a small proportion of one or more trace components, by means of the addition of polar organic solvents having a dipole moment in the range from 1.6 to 4.0 Debye, and adsorption of the proteins on a solid phase carrier, wherein the trace components are separated from the proteins bound to the solid phase carrier by adsorption by means of a) magnetic field, b) centrifugal force, c) gravitational force or d) compressive force, and the trace components remain in the liquid.