Handling of minute amounts of physiological liquids and reagents with safety and precision requires special engineering skills. Roche Diagnostics Ltd. develops and produces a large variety of instruments with diverse requirements in Liquid Handling. High throughput diagnostics analyzers such as the COBAS® 800 transport fluids at a precision of 1% CV and monitor the safety of the process with especially developed devices such as Pipetting Control. For high throughput drug discovery precise pipetting is realised for up to 384 wells in a Microplate. For PCR Sample Preparation aerosol transfer must be avoided. Roche Diagnostics Ltd. Liquid Handling Specialists use unique tip and filter design to fully avoid contamination by aerosols.