Fraction collector and a method for operating the same

A fraction collector apparatus comprising:

• a. a support system,
• b. a carrier moveably supported by the support system,
• c. an extension arm connected to the carrier,
• d. at least one dispensing head for dispensing droplets and moveably connected to the extension arm, wherein the dispensing head and carrier are configured to move relative to the support system in a first plane, and
• e. a tray area arranged to support at least one rack, wherein the at least one rack is configured to place at least one collection vessel, wherein a motion of said carrier is achieved by a linear bearing Y-slide unit, and wherein the linear bearing Y-slide unit is configured to move along a linear bearing Y-rail, and wherein the carrier is attached to an underside of the linear bearing Y-slide unit,
• wherein the dispensing head further comprises a nozzle of different sizes forming droplets in different sizes.