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Semi-Permeable Membrane Device (SPMD)

PSDs

What are SPMDs?

See image above – left hand side canister

  • – SPMDs sequester primarily hydrophobic/lipophilic type substances. Substances with a log Kow> 4
  • – Comprises a low density polythene tube with a pore size of typically < 10 Ȧ encasing the sequestering media, the neutral lipid Triolein
  • – SPMDs sequester bio-available pollutant in a similar way to aquatic species. In some papers it has been described as a virtual fish
  • – SPMDs appear frequently in published literature and is a widely accepted technique for the passive sampling of lipophilic substances in both water and air

List of compounds identified by SPMDs

Pesticides

Diazinon, Lambda Cyhalothrin, Trifluralin, Lindane, Diazinon, Atrazine, α-Benzenehexachloride (α-BHC), Dacthal, trans-Nonachlor, Heptachlor Epoxide, Endosulfan, trans-Chlordane, Oxychlordane, Chlorpyrifos, cis-Chlordane, Tefluthrin, Metolachlor, Hexachlorobenzene (HCB), o,p’-DDE, Pentachloroanisole (PCA), Heptachlor, δ- Benzenehexachloride (δ-BHC), β-Benzenehexachloride (β-BHC), Acetochlor, Alochlor, cis-Nonachlor, Cis-Permethrin, Dieldrin, Endosulfan Sulphate, Endosulfan-II, Endrin, Mirex, o,p’-DDD, o,p’-DDT, p,p’-DDD, p,p’-DDE, Trans-Permethrin, p,p’-DDT, p,p’-Methoxychlor, Cypermethrin

PAHs

Acenaphthene, Acenaphthylene, Allethrin, Anthracene, Benz[a]anthracene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Benzo[k]fluoranthene, Chrysene, Dibenz[a,h]anthracene, Fenvalerate, Fluoranthene, Fluorene, Indeno[1,2,3-cd]pyrene, Naphthalene, Phenanthrene, Pyren, Alkylated PAHs

All PCBs

To discuss your specific Passive Sampling analytical needs and for method details, including reporting limits and accreditation, please contact our Customer Service team.

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