Abstract: A method for calibrating at least one analytic device with repeated hardware components is disclosed and comprises providing at least one calibrator sample i having a known target value of a concentration of at least one analyte; at least one measuring step, wherein the measuring step comprises conducting at least one measurement on the calibrator sample using the analytic device, wherein at least one detector signal sijk is acquired; at least one calibration step, wherein a relationship between the detector signal and the concentration of the analyte and/or between the detector signal and a theoretical signal value is determined, wherein the calibration step comprises providing at least one parametrized function; determining calibration values by conducting a calibration based on the parametrized function; and determining an analysis function on basis of an inverse of the parametrized function and the determined calibration values.

Abstract: An apparatus for holding a communication device, comprising in combination, a cup holder having a recess therein; a cell phone; and a circular body of an elastic material. The body has an upper portion of a constant first diameter and a lower portion of a second smaller constant diameter. The upper and lower portions are smoothly joined by a transition portion. The upper portion terminates with an upper surface defining a rectangular recess enabled for receiving the cell phone with the cell phone protruding upwardly from the rectangular recess. The cup holder removably receives the lower portion and wedgingly grips the transitional portion of the body in frictional compliant engagement.