During this phase, the determined positive mean was 24.8 ng/
kg, and the highest confirmed AFM 1 concentration was 102 ng/kg.
In the previous years, the official controls in Macedonia carried out
on raw milk samples by screening ELISA test, mostly revealed
concentrations below the method detection limit (Hajrulai-Musliu,
Stojanovska-Dimzoska, Dimitrieska-Stojkovic, Sekulovski, & Stoj-
kovski, 2009). Sporadically detected positive samples contained
AFM 1 concentrations below the CC b value determined thorough
the ELISA assay validation procedure.