Analytical determination of Chemical Oxygen Demand in samples considered to be difficult to analyse: solid substrates and liquid samples with high suspended solid concentration

Beltrán, J.; Borja, R.; Cavinato, C.; Clinckspoor, M.; De la Rubia, M. A.; de Wilde, V.; Demirer, G.; Diamadopoulos, E.; Fernández - Cegrí, V.; Frigon, J. C.; Koubova, J.; Launay, M.; Menin, G.; Méndez, R.; Noguerol, J.; Raposo, F.; Uellendahl, Hinrich; West, S.