Nærmere oplysninger om analysemetoderne findes på referencelaboratoriets hjemmeside: http://irmm.jrc.ec.europa.eu/EURLs/EURL_feed_additives/Pages/index.aspx.
Details of the analytical methods are available at the following address of the Reference Laboratory: http://irmm.jrc.ec.europa.eu/EURLs/EURL_feed_additives/Pages/index.aspx