Durability and reliability are built into all three of Teledyne LABS fraction collectors, the Foxy® R1, R2 and R2 High Flow. Designed for accuracy and speed, these fraction collectors represent state-of-the-art functionality and innovation. The Foxy R1 and R2 fraction collectors are liquid distribution instruments with the ability to divide the liquid into multiple collection vessels, switching vessels on time, drops, volume, peaks, or a combination of these parameters. Collection vessels can be test tubes, vials, mini-wells, bottles, or funnels. The touch screen display simplifies set-up for a variety of collection routines.  ​​​

Foxy​​ R1
F​​oxy R2
High​​ Flow Foxy R2
​Inlet Tubing and Flow Ra​tes​1/16" OD (0.031" ID), up to 25mL/min
(25 to 125 mL/min with high flow option)
​1/8" OD (0.062" ID), 25–125 mL/min
(up to 25 mL/min with low flow option)
​1/4” OD (0.125" ID), up to 1 L/min ​

​Maximum Tube Height
​160 mm
​196 mm
​180 mm
​1, no detection
​2, with RFID
​2, with RFID
​Maximum Tube Qty
​144 12/13 mm tubes
​288 12/13 mm tubes
​288 12/13 mm tubes
​Construction Materials:
Funnel Racks
Diverter Valve
Drip Tray
Drop Former​

Stainless steel and polypropylene
ECTFE (Halar) or ETFE (Tefzel) funnels
PEEK and FFKM (fluoroelastomer)
Cast Aluminum
​Solvent Compatibility
​Aqueous and Organic
​Test Tube Time Change
​0.10 – 0.58 seconds (dependent on collection vessel tube advance speed)
​Eight methods​
​Collection Modes:

00:00:01– 99:59:59, 1 second intervals
1– 999 drops per fraction
Up to 999 units
​Peak Detection
​Slope, Threshold, Three time windows, Combination of any of the above collection modes
​​System Control
​Front panel touch screen, Ethernet or RS-232
​Pump counter, external peak, inject, tube advance: +3.3 to 5 VDC or contact closure, active low, 30 ms minimum, 5 VDC max. Analog peak voltage: 0 to 1.0 V nominal, –1.2 to + 1.2 V usuable, –5 to +5 V max.
​Pump pause/stop and event (tube change), 300 ms: open collector, active low, 15 VDC/100 mA maximum.
​Automatic Shut-off
​Rack full, last tube, end of time window or external signal 
​Security Valve (2-way)
​Diverter Valve (3-way)
​Valve Pressure Rating
​0– 28 ps
​Dimensions (W x H x D)
​12.25 x 14.0 x 13.0 in
31.1 x 35.5 x 33.0 cm
​12.25 x 14.9 x 21.0 in
31.1 x 37.8 x 53.3 cm
​12.25 x 15.5 x 21.0 in
31.1 x 39.4 x 53.3 cm
​7.1 kg (15.6 lbs) 
​10.3 kg (22.8 lbs)
​10.4 kg (22.9 lbs)
​Power Requirements
​100 – 240 VAC, 50–60 Hz, 1 ampere max.
Includes one IEC power cord supplied for regional AC power (100, 117, 234 VAC)

​Frequently Asked Questions

What is a fraction collector?

A fraction collector contains rows of test tubes or bottles that move through a pre-programmed, sequential system to collect samples from a chromatography system or other instrument. It also can be programmed for the distinct collection of peaks of specific proteins in fraction collection for preparative chromatography.

What does a fraction collector do in high-performance liquid chromatography (HPLC)?

In HPLC as in all chromatography, a compound is separated out into its various components. This collection of individual components is divided out into a series of test tubes using a fraction collector. 

What is a chromatography fraction​?

​A chromatography fraction is one of the elements found in a compound being separated out into its various components, or fractions. A fraction collector catches each of these components in separate test tubes or bottles.