English 
Dutch 
French 
Two-rack Fraction Collectors
The Foxy® R2 and Foxy® R2 High Flow fraction collectors use two collection racks with radio frequency identification (RFID) to automatically detect collection racks, enabling fast and error-free setup. The dual-rack design doubles collection capacity and allows the system to be adapted to a wide range of applications.
The system can distribute fractions into 96-well microplates, standard tube sizes, and bottles. For essentially unlimited collection volumes, funnel racks and bottles can be used to direct fluids to any collection vessel or downstream process. The use of RFID-tagged racks supports accurate and efficient configuration of the system.
Fraction collection capabilities
The Foxy® R2 supports multiple collection strategies and can reliably separate peaks by monitoring detector output, allowing collection of only relevant fractions while reducing waste of glassware on non-interest effluent.
Uniform fraction collection can be performed by:
- Time
- Drop count
- Pumped volume
Additional standard capabilities include:
- Storage of up to 8 collection methods
- Choice of available rack configurations (specified when ordering)
- Coldroom-compatible design
- Sturdy cast aluminum frame
- Symbolic touch screen interface
- Built-in Ethernet and RS-232 communication
- Faster tube change capability
- µL delay volume between diverter valve and drop former
- Flow rates up to 125 mL/minute
Peak collection options
The system supports selective peak collection using combinations of slope, level, and time window detection. This allows separation of peaks based on detector output while diverting non-relevant effluent.
- Level sensing: collects peaks above a detector threshold, enabling “heartcut” collection of the concentrated peak portion
- Slope detection: collects peaks based on inflection points and can separate closely eluting peaks using valley triggers
- Time window: collects fractions only within a defined time interval
- Delay compensation: ensures peak cutting at the diverter valve regardless of tubing length
Looking for a one-rack fraction collector? Take a look at the One-rack Fraction Collectors Foxy® R1
