An interlaboratory study as useful tool for proficiency testing of chemical oxygen demand measurements using solid substrates and liquid samples with high suspended solid content

Instituto de la Grasa, Consejo Superior de Investigaciones Científicas, 41012 Seville, Spain.
Talanta (Impact Factor: 3.55). 11/2009; 80(1):329-37. DOI: 10.1016/j.talanta.2009.06.071
Source: PubMed


In 2008, the first Proficiency Testing Scheme of Chemical Oxygen Demand (1st COD-PTADG) was conducted to assess the results obtained for different research groups whose field work is mainly anaerobic digestion. This study was performed using four samples, two solid samples as raw materials and two solid samples to prepare high concentration suspended solid solutions. Invitations were sent to a large number of laboratories, mainly to anaerobic digestion research groups. Finally, thirty labs from sixteen countries agreed to participate, but for different reasons four participants could not send any data. In total, twenty-six results were reported to the COD-PT coordinator.

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