The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
Certified reference materials for mercury in marine animal tissues
Monomethylmercury compounds are of great concern, as these highly toxic compounds are formed biotically by microorganisms in sediment and algae in sea water and/or abiotically. Once it is formed, methylmercury is biopaccumulöated and biomagnified in the aquatic food chains, thus resulting in exposure levels among fish-eating populations, often at levels exceeding what is regarded as a safe level.
It is therefore of primary interest to have samples from the animal species within the food chain at different trophic level.
The main issues to be controlled during the analysis of biological tissues for the speciation analysis of mercury are:
quantitativeness of extraction of the species from the tissue
absence of artificial formation of methylmercury during the analytical procedure
control of contamination mainly for inorganic mercury
avoidance of ion-exchange and adsorption problems on GC coilumn packing materials
control of the derivatization yield
CRMs play a major role in the development and validation of
methods and for quality control. The following certified reference
materials (CRMs) are available for the speciation of mercury species in marine animal tissues:
* () =information value only, = original certification no longer valid
NB:! click on the suppliers name to reach his website, click on the
material name for a link to the report, click on the certified species
for a link to the certificate