Parabens

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 for urine

Number of samples

• Minimum 6 samples

Matrices

• Urine
• Serum
• Consumer products
• 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 (urine, serum and water)
• 0.2–1.5 ng/g fresh weight (consumer products)

Sampling instructions

• Sample container: glass, polypropylene (PP), polyethene (PE) or aluminium foil
• Minimum sample amount: urine and water 0.5 ml, serum 0.2 ml, other samples 1 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

• Methylparaben (MeP)
• Ethylparaben (EtP)
• Propylparaben (n-PrP)
• Isopropylparaben (i-PrP)
• Butylparaben (n-BuP)
• Isobutylparaben (i-BuP)
• Benzylparaben (BzP)
• Heptylparaben (HpP)