SPE-DEX® 4790 Automated Extraction System

The Horizon Technology SPE-DEX 4790 Automated Extraction System is a programmable, multipurpose SPE system, capable of processing aqueous samples directly from their original containers. Once the process is initiated, each SPE-DEX 4790 system sequentially delivers all the necessary solvents to precondition the sorbent material within the SPE disk, passes the water sample through the disk and, after a preset air-dry time, extracts the sorbed analytes from the disk in to a collection vessel using the required amounts of solvents.

SPE has a number of benefits, including:

  • Uses less solvent, and creates
  • Less waste, controlling costs
  • Reduces exposure to solvent, increasing safety
  • Less chance of emulsions, providing more predictable productivity

Additionally, SPE is readily automated providing additional benefits:

  • Better reproducibility between technicians
  • Handles most samples reliably
  • Less attention required for good results

Features and Benefits of the SPE-DEX 4790

  • Use the bottle of your choice for easier implementation
  • Rinses the bottle for best sample recoveries
  • Accommodates 20 mL-4L samples for all sensitivity needs
  • The Fast Flow disk holder is designed to collect particulates before the SPE disk, maintaining flow
  • Prefilters available to keep the sample flowing
  • Large water inlet value to accommodate particulates
  • Includes a Purge function to clean the system between samples
  • A variety of solvents can be used, including dichloromethane, methanol, and hexane, for example


Unique Web-based controller software included

  • Access status from anywhere
  • On-board diagnostics report system readiness
  • Resident methods for quick start-up
  • New methods can be created and stored
  • Quick status review through icons
  • Transfer developed methods to other systems
  • Up to eight stations can be controlled at once for increased productivity


Workflow for the SPE-DEX 4790 Extractor, used with Atlantic solid phase extraction disks, the DryVap Inline Drying and Concentration System and the SolventTrapsvoc Solvent Recovery System for a full sample preparation system.