Agilent 3100 OFFGEL Fractionator

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The Agilent 3100 OFFGEL fractionator provides robust, repeatable in-solution fraction recovery that ensures LC/MS assays are optimized for the maximum number of proteins. This advanced fractionator features a user-friendly interface and can connect to a PC or be operated from a smart phone when connected to a LAN. The Agilent 3100 can run two fractionations simultaneously with up to 16 samples (8 samples per tray), even with different concentrations. The OFFGEL uses electrophoresis to separate proteins or peptides according to their isoelectric points, and then collects them in their liquid phase for excellent pI-based fractionation with 0.1 – 0.6 pH resolution. This fractionator operates in 4 modes, constant voltage, constant current, constant power and timetable programable mode, with individual current control for each sample. The Agilent 3100 OFFGEL fractionator has a 50 µg to 5 mg load capacity for analytical applications or maximum enrichment of low abundance proteins.

Agilent 3100 OFFGEL fractionator Specifications: 

Platform temperature:

Range: 10 - 35 °C

Max. 10 °C below ambient

Non condensing

Power supplies:

2 independent high voltage power supplies Voltage range: 0.5–10kV

Current range: 0-150 uA/ strip

Power: 0-1 W/strip


Constant voltage

Constant current

Constant power

Timetable programable

(Individual current control for each sample)

Fractionation capacity:

2 x 8 samples (12 or 24 fractions) in OFFGEL mode and IPG-IEF (in gel) on 2 individual trays


 0.1 - 0.6 pH units between neighboring fractions, depending on kit used

Loading capacity:

50 µg – 5 mg of total protein or peptide amount per sample


14 x 18 x 7 “


28 lbs


100-240V, 50/60 Hz, 140va


  • Agilent 3100 OFFGEL fractionator
  • Windows 7 Notebook with Agilent OFFGEL and LabAdvisor
  • GameBoy Controller
  • Operator's Guide
  • 115V Power Cord
  • 30-Day Warranty
  • Slight Crack on Plexiglass Lid, Only Cosmetic

This Agilent 3100 OFFGEL fractionator has been fully inspected and is performing to expectations. Please note there is a crack in the plexiglass lid however it is only cosmetic, and does not impact performance. All of our lab equipment comes backed with our standard warranty. Should you have any questions, please don't hesitate to contact us.

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