Le khithi isuselwe kubuchwepheshe bokuncintisana obungaqondile be-immunochromatography, lapho i-Nitrofurans metabolites kusampula iqhudelana ngegolide le-colloid elibhalwe ukuthi i-antibody ne-Nitrofurans metabolites ehlanganisa i-antigen ethathwe kulayini wokuhlola. Umphumela wokuhlolwa ungabukwa ngeso lenyama.