Abstract: A puncturing system includes a carrier tape carrying multiple lancets and having position marks, a device housing that comprises a conveying facility for positioning the lancets consecutively in a usage position by moving the carrier tape in a conveying direction and has a housing opening for touching against a body part in which a puncture is to be made by a puncturing motion of one of the lancets, a puncturing drive for accelerating one of the lancets that is positioned in the usage position for the puncturing motion, a storage medium on which distance values for the lancets are stored, the distance values depending on distances between the lancets of the carrier tape and position marks allocated to the respective lancets, a a sensor for detecting position marks in a detection position through which the position marks proceed upon a motion of the carrier tape that is effected by the conveying facility, and a control unit that is connected to the sensor for controlling the conveying facility, wherein, in ord

Abstract: An aqueous control liquid is provided that contains glucose at a known concentration and cyclodextrin. A method is also provided that binds a wetting agent from a region of a test element that comes into contact with a sample. The method includes contacting the region with a control liquid that has a substance selected from the group of cyclodextrin derivatives and dispersed materials having a specific surface of 100 m2/g to over 1000 m2/g. A method for controlling the function of a measuring system having test strips and a measuring instrument for the determination of glucose in liquid samples is provided that includes contacting the test strip with a control liquid containing glucose at a known concentration and at least one substance selected from the group consisting of cyclodextrins and cyclodextrin derivatives and detecting a signal caused by the glucose contained in the control liquid.

Abstract: The invention concerns an aqueous control liquid (control solution) containing glucose at a known concentration and at least one substance selected from the group comprising cyclodextrins, cyclodextrin derivatives and finely dispersed materials having a large specific surface.