Eurekalert! -- No one wants antibiotic residues in their milk. But antibiotics are sometimes used even in the dairy barn. The routine tests conducted nowadays take hours to produce a result and do not test for all of the typical antibiotics. This gap can now be closed, thanks to a fully automated minilab developed by scientists from the TUM in cooperation with the LMU Muenchen and gwk Praezisionstechnik GmbH.