Whole blood separator with lithium heparin for the Catalyst Dx chemistry analyzer, an enhancement for the desktop analyzer that allows users to eliminate the draw process, sample tubes, and external centrifugation. This separator enables practitioners to draw blood and transfer it directly to the Catalyst Dx device in seconds. This latest innovation from the Catalyst device eliminates steps, simplifies workflow in testing, saves money, and enables clinics to share results with clients during the patient's visit.