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EC number: 930-592-4 | CAS number: -
Method C.19, Estimation of the adsorption coefficient (Koc) on soil and sewage sludge using high performance liquid chromatography (HPLC), Council Regulation (EC) No 440/2008, Published in O.J.L 142, 2008. GLP study
Because of complex composition of the test substance containing both inorganic and organic components with no main component, a lower and upper limit of both log Koc (soil) and log Koc (sludge) were determined.
It is redommended in Method C.19: “The method can be used for mixtures which give unresolved elution bands. In such a case, upper and lower limits of the Koc values of the compounds of the test mixture should be stated.”
Lower and upper limit of adsorption coefficient of the test substance on soil:
log Koc = - 0.8 +/- 1.6 (pH = 5.0)
log Koc = 3.0 +/- 0.7 (pH = 5.0)
Lower and upper limit of adsorption coefficient of the test substance on sewage sludge:
log Koc = - 1.2 +/- 1.0 (pH = 5.0)
log Koc = 3.1 +/- 0.5 (pH = 5.0)
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