Method for determining whether reconstitution of a solution in a container is completed

A method for determining whether reconstitution of a solution in a container is completed, the method comprising the steps of:

• selecting a predetermined amount of a solid substance and a predetermined amount of a liquid solvent from which the reconstituted solution is to be prepared, the predetermined amount of the solid substance and of the liquid solvent being selected such that the reconstituted solution is below its saturation limit,
• preparing a solution by solving in the container the predetermined amount of the solid substance in the predetermined amount of the liquid solvent,
• measuring a value chosen from impedance (Z) or resistance (R) of the solution in the container,
• determining whether a change of the measured value within a measuring time interval of a predetermined duration is below a defined threshold, and
• determining that reconstitution of the solution is completed and that the reconstituted solution is formed when the change of the measured value within the measuring time interval of the predetermined duration is below the defined threshold.