Extraction/Sample preparation

  • Better extractions
  • In less time
  • Using less solvent


Solvent extractions that normally require labor-intensive steps are automated or performed in minutes, with reduced solvent consumption and reduced sample handling using Accelerated Solvent Extraction (ASE®) or AutoTrace® systems.

ASE systems use a patented technique for the extraction of solid and semisolid samples using common solvents at elevated temperature and pressure. The ASE 150 and 350 systems feature pH-hardened pathways with Dionium components to support extraction of acidic or alkaline matrices, and combine pretreatment, solvent extraction, and cleanup into one step. Dionium is zirconium that has undergone a proprietary hardening process that makes it inert to chemical attack by acids and bases at elevated temperatures.

ASE systems are dramatically faster than Soxhlet, sonication, and other extraction methods, and require significantly less solvent and labor. ASE methods are accepted and established in the environmental, pharmaceutical, foods, polymers and consumer product industries. ASE method are accepted and used by government agencies worldwide.

  • US EPA Method 3545A
  • CLP SOW OLM 0.42
  • ASTM Standard practice D7210
  • Chinese method GB/T 19649-2005
  • German Method L00.00-34

The AutoTrace 280 instrument performs automated solid-phase extractions (SPE) of large volume liquid sample matrices. The instrument automates the standard SPE steps of condition, load, rinse, and elute to reduce sample handling and improve productivity. AutoTrace systems are available in cartridge or disk formats, and can be used for numerous US EPA methods requiring extraction prior to analysis.

Accelerated Solvent Extraction

Learn about automated solvent extraction (ASE) systems for solid or semisolid samples to prepare for chromatagraphic analysis.

Solid Phase Extraction

Solid-phase extraction (SPE) is a technique for liquid-liquid extraction that is used to remove certain compounds from a mixture of impurities based on their physical and chemical properties. Analytical laboratories use SPE to concentrate and purify samples for analysis. SPE can be used to isolate analytes of interest from a wide variety of matrices, including urine, blood, beverage, and water samples. SPE requirements vary depending on the amount of sample required. SPE systems can be separated into large or small volume techniques. Large volume techniques generally use 100 mL or more of liquid sample.

The AutoTrace SPE instruments reduce labor and solvent consumption by up to 90% when compared to traditional liquid extraction techniques. AutoTrace automates the SPE process to provide high sample throughput combined with reliable analytical results.

LC Sample Preparation Solutions

In preparative chromatography the goal is to isolate a large quantity of organic target molecules during each run. Dionex demonstrates how the deficiency of a limited mass loading capacity can be overcome by using adaptable and sophisticated sample injection procedures.

IC Sample Preparation Solutions

Dionex offers solutions for IC Sample Preparation with AutoPrep and RFIC-ESP.