Shimadzu 20AD Gradient LC System with PDA Detector


  • 20A LC System with PDA Detector
    • DGU-20A Prominence Degasser
    • Two LC-20AD Liquid Chromatograph Pumps
    • CTO-20A Column Oven
    • SIL-20AC Prominence Autosampler
    • CBM-20A Communications Bus Module
    • SPD-M20A Prominence Diode Array Detector 
  • Data System
  • In-House Warranty Coverage


  • Workbench – Browse
  • Module Customization
  • Installation & Familiarization
  • Extended Warranty

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Item#: 11826
Condition: Refurbished
Manufacturer: Shimadzu

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Shimadzu 20AD Gradient LC System with PDA Detector

This LC system is currently used in a wide variety of fields. Higher reliability in analysis data and higher efficiency in total analysis workflow are required for faster development of new drugs, for better food safety, and for meeting higher standards in environmental regulations. Many analysis techniques use LC/MS, which requires a front-end HPLC system to provide solvent delivery performance in the micro to semi-micro range and injectors with low sample carryover. Prominence is a network-ready LC system that meets the demands of today's advanced users.

Shimadzu SPD-M20A HPLC Photodiode Array Detector (PDA)


  • Greater Baseline Stability
    • Supplied as standard, a temperature-controlled flow cell eliminates inconsistencies caused by changes in absorbance due to shifts in room temperature. This helps increase the baseline stability and the analysis reliability.
  • Superior Linearity - 2.0AU
    • Using newly developed signal processing technology, the stray-light correction function has been enhanced, and the linearity has been improved. This expanded linearity combines with various noise-reduction technologies to provide users with a wide dynamic range and allow for the analysis of your target compound and minor impurities in a single run.
  • Web Browser Control
    • The SPD-M20A is equipped with an Ethernet interface and Web-control functions, allowing devices to be monitored and controlled from PCs in the network. As a standalone high-sensitivity multi-wavelength detector, it can be incorporated into non-Shimadzu HPLC systems.


  • Photodiode array elements: 512 elements
  • Light source: Deuterium lamp, Tungsten lamp
  • Measurement wavelength range: 190 – 800 nm
  • Wavelength accuracy: ± 1 nm
  • Element resolution: 1.2 nm / element

Standard Flow Cell Specifications:

  • Optical path length: 10 mm
  • Cell volume: 10 µl
  • Pressure resistance: 12 MPa
  • Wetted surface materials: SUS316L, quartz glass, PFA
  • Inlet tubing I.D.: 0.25 mm x length 550 mm
  • Outlet tubing I.D.: 0.25 mm x length 250 mm
  • Cell temperature control: Yes
  • Cell temperature control settings: OFF, 9 – 50℃ (in 1℃ steps), set at ambient +5℃ or above
  • Cell temperature control precision: 0.1

Shimadzu SIL-20AC HPLC Autosampler


  • Injection method: Total-volume sample injection, variable injection volume
  • Injection-volume setting range: 0.1 to 100 µL (standard)
  • Number of repeated injections: 30 max. per sample
  • Operating pH range: pH1 to pH14

Shimadzu CTO-20A HPLC Column Oven


  • Temperature-setting rage: 4℃ to 85℃
  • Temperature-control precision: 0.1℃ max.
  • Temperature-control range: 10℃ above room temperature to 85℃
  • Operating temperature range: 4℃ to 35℃

Shimadzu CBM-20A HPLC System Controller

The Shimadzu CBM-20A Prominence system controller acts as an interface for connecting instrumentation to LC workstations or network-client computers. One CBM is a necessary component to complete a modular Shimadzu HPLC system.

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Shimadzu 20AD Gradient LC System with PDA Detector

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Full Service Reseller

Original Quality at Refurbished Prices! Our refurbished Shimadzu HPLC Systems have been expertly restored to meet OEM standards. GenTech Scientific's 60,000 square foot facility stocks an extensive multi-million dollar inventory. We staff knowledgeable sales and service personnel who are committed to help you get the right instrument into your lab. We go beyond the sale with our warranty and continued service options.

We Offer:

  • Warranty Coverage with 48 Hour Response Time
  • Lifetime Phone Support & Remote Troubleshooting
  • Delivery and Installation with Familiarization Training
  • Customized Training to Meet Your Needs
  • Service, Repair, and a Large Inventory of Parts
  • Financing Options: Purchase, Leasing and Rental

How we refurbish used lab instruments

Every refurbished instrument we sell under goes 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. A full calibration and data verification is performed ensuring our used Shimadzu HPLC Systems are returned to excellent working condition.

This pre-owned Shimadzu 20AD Gradient LC System with PDA Detector 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.