We have a Pico Trace clean laboratory for sample preparation of MC-ICPMS applications. The laboratory is equipped with metal free clean lab furniture and ventilated with filtered air which generates an overpressure in the room to keep out airborne particles. We have two types of work stations: horizontal laminar flow fume hoods and laminar flow high security workstations RLK with vertical air flow. Our clean room meets ISO 14644 class 3 or better, in the work stations we typically meet ISO 14644 class 2. We have a separated balance room with a Mettler Toledo high precision balance. The balance room is connected to the clean room via a transfer port. The clean laboratory is further equipped with acid inert safety hotplates, a closed subboiling distilling system and a MilliQ water supply.