Dioxins & PCBs Purification Columns for Miura GO-xEHT Systems

The Miura GO-xEHT (GO-xHT) is a fully automatic sample preparation system for the analysis of Dioxins (DXNs) and Polychlorinated Biphenyls (PCBs), compounds considered Persistent Organic Pollutants (POPs). Find more details on this comprehensive Clean-up system here.


  • High performance clean-up
  • 4 columns
  • Heated purification and elution
    → better purification
    → faster elution
  • User-friendly design
  • Easy to apply sample
  • Easy connections
  • Disposable parts
    → no washing
    → no cross-contamination
  • Unique flow switching
  • Perfect separation of PCBs and Dixons in one freaction each
 Depending on the sample matrix and the analytes of interest, different column sets are available:

Composition of the Column Sets

(Standard Setup)

Sample Injection  
1 Delute sample in hexane and apply onto column
2 AgNO3 - Silica gel column - removal of sulphur compounds
3 H2SO4 - Silica gel column - hydrolysis of fats and removal of basic compounds
4 Carbon based column - retention of dioxins by structural interaction
5 Alumina based column (only needed for PCBs analysis) - retention of PCBs by polar interaction
6 Dioxin Fraction
7 PCB Fraction
All columns and tubings needed are included in each set 

How it Works

  1. Dissolve the extracted sample in hexane and apply it to the column
    The system performs automatically the following steps
    - Clean-up
    - Concentration
    - Elution of PCBs fraction
    - Elution of Dioxins fraction
  2. Pick up the collected fractions

Column Sets and Recommended Applications

Sample type Environmental Samples
  Food / Feed Samples
P/N 980-23882 980-22481 980-23881
Type size [mm] DXNmini 18 Ø Standard 20 Ø Mini 18 Ø
Sample Environmental
- EPA -
Food 3 g fat
Food 1 g fat
Purification (1) AgNO3-Silica gel AgNO3-Silica gel AgNO3-Silica gel
Purification (2) H2SO4-Silica gel H2SO4-Silica gel H2SO4-Silica gel
Concentration (3) Carbon Carbon Carbon
Concentration (4) - Alumina Alumina
Solvent consumption
85 ml 90 ml 85 ml
DXN fraction (5)
1.2 ml 1.2 ml 1.2 ml
PCB fraction (6)
- 1.0 ml 1.0 ml
Run time 73 min 80 min 78 min
Each column set includes enough columns and tubings to perform 100 analysis.

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