Abstract: In order to increase efficiency, to minimize the size of the apparatus and in order to reduce the workload of the operator who runs the analyzer, the apparatus for the automated analysis of liquid samples, including a sample tray, at least two reagent trays, at least two reaction trays, and at least two measuring devices. The sample tray is arranged in the center of the analysis area, the at least two reaction trays are arranged adjacent to the sample tray, the at least two reagent trays are arranged adjacent to the reaction trays and the at least two measuring devices are arranged adjacent to the reaction trays. Between the sample disc and each of the at least two reaction trays there is a pipetting device. Between each of the at least two reagent trays and their corresponding reaction trays there is a pipetting device.