Sediment Exchange for Tests on Organic Contaminants - SETOC
Proficiency tests
Participation is open to all laboratories.
| Test programme | Fresh Water Sediment |
| Number of rounds | 4 per year |
| Number of samples | 4 per round |
| Sample size | 100 g |
| Origin | Natural source |
| Exercise name | SETOC |
General information
- The sample types/matrices are chosen to represent the materials which you normally analyse. There is no spiking or use of artificial samples.
- The samples are obtained from river beds, lake bottoms and harbours.
- Sediments are dried and milled and sieved to < 0.5 mm.
- The homogeneity of each batch of samples is tested on a selection of parameters.
- The dried sediment samples have been are stable over a number of years when stored at room temperature.
- You analyze the samples according to your own procedures and for those elements and parameters you are interested in. ·Your results are processed at WEPAL-QUASIMEME and published every three months under confidential code names.
- The reports contain all data, statistical evaluation including Z-score plots and method information about the method used.
- Your reports are available within one month after the submission deadline
- New determinands can be added on request.
Determinands
The list below shows the typical determinands for the Sediment Exchange for Tests on Organic Contaminants. For a list of determinands which are under the scope of accreditation please check here.
| Analyte group | Typical analytes |
|---|---|
| Brominated Flame Retardants | BDE 028, BDE 047, BDE 066, BDE 085, BDE 099, BDE 100, BDE 153, BDE 154, BDE 183, BDE 209 |
| Dibenzofuran | 1,2,3,4,6,7,8 Cl7DF, 1,2,3,4,7,8 Cl6DF, 1,2,3,4,7,8,9 Cl7DF, 1,2,3,6,7,8 Cl6DF, 1,2,3,7,8 Cl5DF, 1,2,3,7,8,9 Cl6DF, 2,3,4,6,7,8 Cl6DF, 2,3,4,7,8 Cl5DF, 2,3,7,8 Cl4DF, Cl8DF |
| Dibenzo-P Dioxin | 1,2,3,4,6,7,8 Cl7DD, 1,2,3,4,7,8 Cl6DD, 1,2,3,6,7,8 Cl6DD, 1,2,3,7,8 Cl5DD, 1,2,3,7,8,9 Cl6DD, 2,3,7,8 Cl4DD, Cl8DD |
| Metals | As, Ba, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sb, Sn, V, Zn |
| Organochlorine pesticides | 1,2,3 trichlorobenzene, 1,2,4 trichlorobenzene, 1,3,5 trichlorobenzene, Sum trichlorobenzenes, 1,2,3,4 tetrachlorobenzene, 1,2,3,5 tetrachlorobenzene, 1,2,4,5 tetrachlorobenzene, Sum tetrachlorobenzenes, aldrin, alpha-endosulfan, alpha-HCH, beta-endosulfan, beta-HCH, chlordane, cis-chlordane, delta-HCH, dieldrin, endosulfan, endosulfan sulfate, endrin, gamma-HCH, heptachlor, heptachlor epoxide, hexachlorobenzene, hexachlorobutadiene, isodrin, o,p`-DDD, o,p`-DDE, o,p`-DDT, p,p`-DDD, p,p`-DDE, p,p`-DDT, pentachlorobenzene, pentachlorophenol, telodrin, toxaphene, trans-chlordane |
| Polychlorobiphenyls | PCB 028, PCB 031, PCB 052, PCB 077, PCB 081, PCB 101, PCB 105, PCB 114, PCB 118, PCB 123, PCB 126, PCB 128, PCB 138, PCB 149, PCB 153, PCB 156, PCB 157, PCB 167, PCB 169, PCB 180, PCB 189, ∑PCB(7) |
| Polycyclic aromatic hydrocarbons | acenaphthene, acenaphthylene, anthracene, benz(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(ghi)perylene, benzo(k)fluoranthene, chrysene, dibenz(ah)anthracene, fluoranthene, fluorene, indeno(1,2,3-cd)pyrene, naphthalene, phenanthrene, pyrene, EPA ∑PAH(16), VROM∑PAH10 |
| Experimental | DEHP, Tributyl Tin (TBT) |
| Other parameters | AOX, CN - Free, CN-complex, CN - Total, EOX, Inorganic carbon, Organic carbon, Mineral oil, GC, Mineral oil, IR, Particles < 2 µm, Particles < 16 µm, Particles < 50 µm, Particles < 63 µm, Particles > 63 µm, Particles < 2000 µm |
Webshop
Samples of previous proficiency tests are sold as reference materials. Available materials can be selected and ordered in our webshop. Participants of our proficiency tests are entitled to a discount.