PFASs

The method is primarily used in collaborative research projects, and other analytical services are agreed on a case by case basis. Written requests and contacts:
Environmental pollutant analysis

Accreditation

• The method is accredited with a flexible scope for perfluoroalkyl sulfonates and perfluoroalkyl carboxylic acids from serum and fish

Number of samples

• Also for single samples

Matrices

• Serum, breast milk and other human samples
• Food
• Soil, sediment and other environmental samples
• Water

Method description

• Samples are pretreated enzymatically if needed. Analytes are extracted with an organic solvent. The quantification is performed with a liquid chromatograph coupled to a triple quadrupole mass spectrometer (LC-MS/MS).

Limit of quantification

• 0.2–1.5 ng/ml (serum and other liquid samples)
• 0.2–1.5 ng/g fresh weight (solid samples)

Sampling instructions

• Sample container: polypropylene (PP) or polyethene (PE)
• Minimum sample amount: serum 0.2 ml, breast milk 10 ml, water 50 ml, other samples 2 g
• Maximum storage time: -18°C for 12 months, -70°C or in liquid nitrogen for at least 20 years
• See also the general sampling instructions that apply to all analyses:
  Environmental pollutant analysis

Dispatch

• Cold package

Analytes

Perfluoroalkyl sulfonic acids

• PFHxS
• PFHpS
• PFOS
• PFDS

Perfluoroalkyl carboxylic acids

• PFHxA
• PFHpA
• PFOA
• PFNA
• PFDA
• PFUnA
• PFDoA
• PFTrA
• PFTA

Perfluorooctanesulfonamide and its derivatives (not accredited)

• FOSA
• MeFOSAA
• EtFOSAA