Fraction Collector

Fraction Collector

Almost unlimited flexibility – opens new possibilities in chromatography and multiple stream sampling.

OMNICOLL Fraction Collector and Sampler

  • Collects fractions in any racks of your choice
  • Collects unlimited number of fractions
  • The electronics and moving parts are placed above the tubes
     – No damage due to spilling
     – Can be placed in a cold bath or any other thermo-stabilized container
  • Unlimited number of programmes
  • Extremely easy programming of rack and tube position by means of a white pen
  • Fractionation according to time (0.1–999.9 min and 1–9999 min) or volume (0.05–500 ml or 0.1 to 30 l)
  • Good quality for a fair price
  • Solvent resistant construction
  • Tubes easily accessible from all sides
  • Pause (from 0 to 999.9 min and 1 to 9999 min) or rinsing can be programmed between fractions
  • Up to 20 fractions simultaneously; multi-channel operation (optional)
  • Collection in lines or zigzag (meander like)
  • RS-232 interface (optional)

Unlimited dimension:

  • Micro titre plates, larger volume bottles, beakers, flasks, etc.
  • Unlimited number of fraction collection 

Highly flexible control:

  • Volume / time / drop count / external signal controlled fraction collection
  • Easy to program and handle

Single stream or multi-stream collection:

  • Single stream
  • Simultaneous multi-stream fractions of up to 20

 

Features of the OMNICOLL fraction collector

  • The only fraction collector which can be easily programmed for any rack or recipients of your choice
  • All electronic and mechanical components have been miniaturised and placed in one moving part, which is placed above the fractions. Therefore, there is no danger of spilling.
  • The lower part of the fraction collector can be placed into a cold bath, ice bath or any other thermo-stabilized container.
  • Modern microprocessor controlled system using several optical sensors allows for easy programming of the tube positions.
  • Fraction collection according to time or volume
  • Fraction collection in lines or meander like (zigzag)
  • pause (from 0.1 to 999.9 min and 1 to 9999 min) can be programmed between fractions. Thus, the OMNICOLL fraction collector can be used for taking (single or multiple) samples, e.g. during fermentation processes, cell cultures and other biological or chemical processes.
  • The pause function can be used also for an automatic start-up of the fraction collection.
  • Washing of the tubing (line washing) between samples is possible, since the number of fractions in a serie can be chosen. 
  • Auto-stop function switches off the fraction collector and the fractionation after a selected rack or at the end of the range
  • Pump flow stop function avoids spilling between two consecutive fractions.
  • Only the liquid transferring tubing is moved instead of the tubes, this requires much less energy and allows the fraction collector to be miniaturized. Additionally, the tubes are easily accessible from all sides.
  • The lower part of the fraction collector can be used for carrying or storage of fractions. A new plastic fixing mat keeps the racks or recipients in position.
  • Several lower parts can be combined to increase the fraction collecting capacity of the fraction collector.
  • Highest user safety has been attained by supplying the OMNICOLL fraction collector with a low voltage plug-in power supply. This allows also an easy field application of the fraction collector (battery operation possible).
  • Solid metal construction makes the OMNICOLL fraction collector insensitive to solvents.
  • Can be easily disassembled and requires only little storage space
  • Low-maintenance construction 
  • Competitive price 
  • Remote control allows sampling after reception of an external signal (such as an alarm). In this way, it is possible to obtain important samples during long processes running even during the absence of a supervisor.
  • Drop counter, inert valve, RS-232 interface, TTL signal based collection and other accessories are available as an option 

 

Easy extension of tube capacity by additional rack supports

The tube capacity of the LAMBDA OMNICOLL fraction collector and sampler can easily be increased by adding rack supports. Virtually any number of such capacity extensions can be added.

Type: LAMBDA OMNICOLL – microprocessor-controlled programmable fraction collector – sampler
Collection mode: Linear (line), meander (zigzag) or row collection
Normal modus:
Time: 0.1 to 999.9 minutes (16.67 hours) in 0.1 min steps or 1 to 9999 minutes (166.7 hours) in 1 min steps
Volume: 0.01 to 500 ml or 0.6 to 30 litres (external counts using LAMBDA peristaltic pump)
High modus: Same as Normal modus, but with a pause between fractions (from 0.1 to 999.9 minutes or 1 to 9999 minutes)
Remote control:
Normal modus: Collector takes a single fraction after an external voltage pulse of 3-12 V (or 12-30 V with a 3300 ohm resistor)
High modus: Collector takes a 1 to 999 fractions after a single external voltage pulse of 3-12 V (or 12-30 V with a 3300 ohm resistor)
Capacity: Any tube rack or container type with a surface smaller than 45 x 31cm
Standard racks supplied: 360 tubes of 12-13 mm diameter; 240 tubes of 16 mm diameter; 160 tubes of 20 mm diameter; 96 tubes of 30 mm diameter; The capacity can be increased many times by coupling several lower fraction collector parts together.
Non-volatile memory: Storage of all settings
Interface: RS-232 (optional)
Power supply: 95–240 V/60–50 Hz AC plug-in power supply with DC 9V/12W output; possible field operation on 12 V accumulator
Dimensions: 34 (W) x 30 (H) x 49 (D) cm
Weight: 6.5 Kg
Safety: CE, meets IEC 1010/1 norm for laboratory instruments
Operation temperature : 0-40 °C
Operation humidity: 0-90% RH, not condensing
Remote control: 0-10 V; (option 0-20 or 4-20 mA)

1. OMNICOLL fraction collector was used to collect the elute in 1.2 − 3.6 mL fractions from the contaminated sediments packed column to investigate the mobilization of Tc under fully saturated seawater flow conditions
Jane Eagling, Paul J. Worsfold, William H. Blake, and Miranda J. Keith-Roach, Mobilization of Technetium from Reduced Sediments under Seawater Inundation and Intrusion Scenarios, Environ. Sci. Technol. 2012, 46, 11798−11803
Plymouth University, UK
Keywords: Column, HPLC, Fe-reducing sediments, Tc, polyetheretherketone (PEEK) self-pack column, Eh, Sediment reoxidation


2. Effluent collected by OMNICOLL fraction collector from the glass column filled with Bt horizon of a natural soil and analyzed by ion chromatography to study the sorption of major cations (Ca, Na) on a natural sediment
Jun Lu, Catherine Beaucaire, Emmanuel Tertre, Predictive model for migration of metallic cations in natural sediments, Procedia Earth and Planetary Science 7 ( 2013 ) 529 – 532.
CEA, DANS/DPC/SECR/L3MR and Université de Poitiers-CNRS, France.
Keywords: reactive transport model; metallic cation; sediment; ion exchange model; reversible sorption


3. Eluate was collected (60 min per fraction) by means of a LAMBDA OMNICOLL fraction collector to determine the silver ion release from coated catheters
Aylvin Jorge Angelo Athanasius Dias, Edith Elisabeth M. Van Den Bosch, Astrid Franken (2010), Antimicrobial coating, US Patent no. US 2010/0113871 A1.


4. Effluent from the glass chromatography column was collected by the OMNICOLL fraction collector to study ion-exchange reactions between Na+, H+, and Ca2+ under dynamic conditions
Jun Lu, Emmanuel Tertre, Catherine Beaucaire, Assessment of a predictive model to describe the migration of major inorganic cations in a Bt soil horizon, Applied Geochemistry, Volume 41, February 2014, Pages 151-162.
CEA, DANS/DPC/SECR/L3MR and Université de Poitiers-CNRS, France.
Keywords: Ion-exchange reactions; Cationic Exchange Capacity (CEC); Ion chromatography; Bt horizon; Packed column; Wyoming montmorillonite


5. OMNICOLL fraction collector was used to collect the eluent from the contaminated sediment packed PEEK column to determine the pH and 90Sr by liquid scintillation
Eagling, Jane, The effect of sea level rise on radionuclide mobility at contaminated nuclear sites, 2012.
Plymouth University, UK
Keywords: contaminated land, porewater salinization, radionuclide, geochemistry, release kinetics, transport, oxic and reduced sediments


6. Effluent samples were collected from the fixed bed column by the multi-channel LAMBDA OMNICOLL fraction collector to study the adsorption of selenite and selenate by Mg-Al-CO3 LDH in the continuous flow system
Chubar, Natalia, and Małgorzata Szlachta., Static and dynamic adsorptive removal of selenite and selenate by alkoxide-free sol–gel-generated Mg–Al–CO3 layered double hydroxide: Effect of competing ions, Chemical Engineering Journal 279 (2015): 885-896.
Utrecht University, The Netherlands; Glasgow Caledonian University, UK and Wrocław University of Technology, Poland.
Keywords: Selenite, Selenate, Mg-Al layered double hydroxide, Batch adsorption, Dynamic adsorption, FTIR


7. Automated sample collector OMNICOLL was used to collect effluent samples (10 ml/min) from the packed bed column to evaluate the transport potential of stabilized milled ZVI particle suspensions
Velimirovic, Milica, Doris Schmid, Stephan Wagner, Vesna Micić, Frank von der Kammer, and Thilo Hofmann, Agar agar-stabilized milled zerovalent iron particles for in situ groundwater remediation, Science of The Total Environment (2015)
Helmholtz-Centre for Environmental Research - UFZ, Germany; University of Vienna, Austria
Keywords: Milled zerovalent iron, Agar agar, Particle stability, Particle transport, Particle reactivity

Can OMNICOLL replace the LKB Superfrac fraction collector (GE HealthCare) which is no longer available?
Yes, OMNICOLL fraction collector and sampler could replace Superfrac (also fraction collector Frac-950, Frac-920).


Do you also sell different heads to the collector that would allow collection into multiple racks at once?
We have a special customization for collecting fractions into multiple racks at once i.e. multi-stream configuration.


Do you have experience with controlling Ismatec IPC multichannel peristaltic pump with OMNICOLL?
LAMBDA offers a customized remote control cable for Ismatec multichannel pump for the analog communication between OMNICOLL and pump.


Should I be able to integrate any peristaltic pump with your LAMBDA OMNICOLL fraction collector?
You can use any peristaltic pump with the LAMBDA OMNICOLL fraction collector.
The OMNICOLL fraction collector provides a signal (~ 9 V) which is used by the communication module (art. no. 6911) to switch the pump off while moving from one fraction position to the other and at the end of the run. Therefore, there is no spilling between fractions.
Additionally, while using the OMNICOLL fraction collector with LAMBDA PERISTALTIC PUMP, the fraction collector can take fractions volumetrically by counting the pump impulsions (count mode). Therefore, each fraction will have the same impulsion number and, thus, have the same volume.


What is the top flow rate that the fraction collector unit can handle?
Our OMNICOLL Fraction Collector and Sampler is a flexible system and it adapts to your desired application. It is not limited by the feed rate and the number of samples being collected.
Because, the feed flow rate depends on the pressure difference and the diameter of the tubing used. You can choose the tubing and diameter as per your requirement.