Dionex Ion Chromatography System for UV & Conductivity

Manufacturer: Dionex


  • Dionex AS50 Autosampler
    • 100 position sample tray
  • Dionex AS50 Thermal Compartment
  • Dionex EG40 Eluent Generator
  • Dionex ED50 Electrochemical Detector
  • AD25 Absorbance Detector
  • Dionex GP50 Gradient Pump
  • AC2 Power Control Accessory
  • Chromeleon Data System
  • One (1) Year In-House Repair Warranty


  • PC Pneumatic Controller
  • Installation & Familiarization
  • Extended Warranty

More details

Item#: 11488
Condition: Refurbished

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Dionex Ion Chromatography System for UV & Conductivity

Dionex AS50 Autosampler

The Dionex Autoselect AS50 Autosampler precisely delivers from 1.0 to 99.9 µL (in 0.1 µL increments) or 100 to 1000 µL (in 1 µL increments) of sample to an injection valve. During sampling, the tray remains stationary and a sampling needle arm moves from vial to vial. Up to 99 injections can be taken from each vial. The AS50 can be controlled locally, from the front panel keypad and display, or remotely, with a personal computer running Chromeleon software. The AS50 can be configured with PEEK flow paths and components for ion chromatography (IC) applications, or with stainless steel flow paths and components for high-performance liquid chromatography applications (HPLC).

  • Delivers 1.0-99.9 µL (in 0.1 µL increments) or 100-1000 µL (in 1 µL increments) of sample to an injection valve100 position sample tray

AS50 Thermal Compartment

A Peltier device controls the compartment temperature to between 10 °C and 40 °C (PEEK systems) or 10 °C and 80 °C (stainless steel systems). The device can cool the compartment to a minimum of 10 °C below ambient and heat it to a maximum of 60 °C above ambient. A heat exchanger equilibrates the sample temperature before it enters the column.

Dionex EG40 Eluent Generator

The use of eluent generators in IC has several significant advantages. Separations can be performed using only deionized water as the carrier. Eluent generators produce high purity, containment free acid and base eluents on-line. The use of these high purity eluents can significantly improve the performance of ion chromatography methods.

  • Operating pressure: 2000 psi(14MPa) - 3000 psi (21MPa)

Dionex ED50 Electrochemical Detector

The ED50 Electrochemical Detector measures current resulting from the application of potential (voltage) across electrodes in flow-through cells. Depending on the method by which the potential is applied and the current measured, several different properties of the flowing solution can be determined.

The ED50 provides the three major forms of electrochemical detection: conductivity, DC amperometry, and integrated amperometry. Pulsed amperometry is a form of integrated amperometry.

  • Conductivity detection is based on the measurement of the magnitude of electrical current carried by dissolved ions in an electric field.
  • DC Amperometric detection is based on the measurement of current resulting from oxidation or reduction (electrolysis) of analyte molecules at the surface of an electrode.
  • Integrated and pulsed amperometric detection are similar to DC Amperometry in that molecules are oxidized or reduced at the surface of an electrode. However, current is measured by integration during a portion of a repeating potential vs. time waveform.

Dionex GP50 Gradient Pump

The GP50 Gradient Pump is an integral part of a Dionex chromatography system. It is a microprocessor-based, dual-piston, variable-speed, gradient delivery system designed to blend and pump mixtures of up to four different eluents at precisely controlled flow rates. The pump can deliver the selected eluent composition isocratically, or as a multistep linear or curved gradient. A Digital Signal Processor (DSP) provides high speed control of pump flow and pressure.

  • Designed to blend and pump mixtures of up to four different eluents at precisely controlled flow rates

Expertly refurbished used laboratory instruments

Every instrument we sell undergoes a complete inspection of all electronics and performance review. The instruments undergo in-depth preventative maintenance procedures that include extensive cleaning, detector maintenance, line and pump flushing. Routine maintenance is also addressed and filters, liners, tubing, etc. are all replaced as needed. Our chemist perform full calibration and data verification. The once used Ion Chromatography are returned to like-new condition and will run your samples for 30-80% less than OEM pricing.

This refurbished Dionex Ion Chromatography System for UV & Conductivity is calibrated to meet OEM standards. Our expert service engineers and chemists can install and custom configure the system to be compliant with the Methods you plan to run.

The GenTech Difference

Why Buy New When You Don't Have To? Our refurbished Ion Chromatography have been expertly restored to meet OEM standards. GenTech is a full service reseller, our knowledgeable engineers perform installations, repairs, training and application setup. The inventory in our 60,000 sq. foot facility is constantly changing with new shipments coming in daily. GenTech customers receive lifetime phone support for all instruments they purchase.

Get cash or purchase credit for your unwanted laboratory assets!

GenTech buys a wide range of equipment from Agilent, Thermo, Waters, AB Sciex, Shimadzu, Perkin Elmer, and More! Since 1996 GenTech Scientific has purchased used laboratory equipment to refurbish and resell with 1 Year warranties. Our refurbished equipment comes fully tested, and supported long after the manufacturers! If you have old or unused lab equipment in your laboratory that you are looking to sell, contact GenTech and see how we can help you!

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Apply your trade-in value towards your next purchase! Learn more about Trade-In's.

If you have a trade-in complete the quote request form including the instruments you wish to purchase and the equipment you have to trade. Click here to Request a Quote.

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GenTech is currently interested in purchasing GC, HPLC, MS, LC/MS, ICP/MS equipment and laboratory accessories! Click Here to see a complete list.

To sell your equipment please include the make, model and pictures of the instruments you have to sell. Click here to Contact the Purchasing Department.

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