HALO® PFAS - Excellent selectivity for fluorinated compounds

The group of per- and polyfluorinated substances (PFAS) comprise perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), Perfluorononanoic acid (PFNA), Perfluorohexanesulfonic acid (PFHxS) and hundreds of other substances. The best known are PFOS and PFOA.

The perfluorinated compounds PFOS and PFOA are biologically and chemically extremely stable and resist water and grease. Because of these technical properties, they were used over decades in the production of textiles, electronics, paper coatings, paint, fire extinguishing foam and ski wax.

Perfluorinated compounds do not break down in the environment and build up in the human body. Since 2010 the use of PFOS and since 2020 the use of PFOA has been banned in Europe.

Properties and advantages of the HALO® PFAS columns

The HALO® PFAS column offers a comprehensive solution for the analysis of per- and polyfluorinated compounds (PFAS) in environmental and food samples.
Each lot is QC tested via LC-MS/MS. A selection of 17 PFAS from a vast range of short and long-chained compounds is analysed.

  • very good selectivity and resolution for EPA methods 537.1, 533 and 8327
  • application-assured through method qualified lot analysis
  • optimal 2.7 µm Fused-Core® particle for rugged, reliable performance delivering high efficiency, low back pressure separations
  • alkyl phase (endcapped) for high sensitive LC-MS analysis without column bleeding
  • Pressure limit 600 bar / 9000 psi

Specification of the HALO® PFAS columns

Particle size: 2.7 µm
Surface area: 135 m2/g
Pore size: 90 Å
Modification: C18
Endcapping : yes
pH range: 2.0 - 9.0

Temperature maximum:
60°C at low pH
40°C at high pH

HALO® PFAS Delay Column

The HALO® PFAS Delay column assures that background PFAS contamination from the HPLC equipment or the mobile phase does not interfere with the PFAS compounds of the sample. This is specifically important in trace analysis.

The delay column bonded phase is a highly retentive endcapped silane chosen for its ability to demonstrate delay of background instrument PFAS contamination across multiple mobile phase conditions. For this reason, the HALO® PFAS Delay column is placed upstream of the sample injector.

Specifications of the HALO® PFAS Delay Säulen

Particle size: 2.7 µm
Surface area: 905 m2/g
Modification: Proprietary
Endcapping : yes
pH range: 2.0 - 9.0

60°C at low pH
40°C at high pH