Abstract: The present disclosure relates to a sensor arrangement (1) for analyzing substances in a material, comprising a substrate (2), a first reception area (5) for receiving a first material, an electronic component sensor (3), a test area (4) that is in contact with the electronic component sensor (3), and a control device (10). The first reception area (5) and the test area (4) are arranged on the substrate (2). The control device (10) is configured for controlling the first reception area (5) and/or the test area (4) to move a portion of the first material from the first reception area (5) into the test area (4). Further, the present disclosure relates to a method for operating such a sensor arrangement (1).