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The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).


Supporters of EVISA includes:

Organotin species in sediments



The main issues to be controlled during the analysis of sediments for organotins are:
  • quantitativness of extraction of the species from the sediment
  • absence of degradation of the organotins during the extraction
  • control of contamination (through plastic labware, gloves etc.)
  • control of the derivatization yield
  • control of interferences (e.g. with methods lacking selectivity such as GC-FPD)
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 analysis of organotin compounds in sediments:
 
Supplier  Name  Material Certificate
NRCC  PACS-2  Marine harbour sediment DBT, TBT
NRCC  HIPA-1  Blended marine harbour dediment TBT
NRCC  SOPH-1  Blended marine harbour sediment DBT, TBT
NMIJ
7301-a
Marine sediments
MBT, DBT, TBT
BCR
462
Marine coastal sediment
DBT, TBT
BCR
646
Freshwater sediment
MBT, DBT, TBT, MPhT, DPhT, TPhT

* 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


EVISA Material Database: Materials related to tin speciation
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