I ahu mai tenei kete i runga i te hangarau immunochromatography whakataetae autaki, e whakataetae ana nga metabolites Nitrofurans i roto i te tauira mo te karaehe koura colloid kua tapaina he antibody me nga metabolites Nitrofurans e hono ana i te antigen i mau ki te raina whakamatautau. Ko te hua whakamatautau ka taea te maataki ma te kanohi tahanga.