Romer Labs' Brazilian subsidiary conducted aflatoxin check-sample surveys in November 2009, the company's first.
The ring trial was well received by industry labs that lack access to established international interlaboratory studies.
The aflatoxin test samples, containing naturally contaminated corn, were dispatched to 49 laboratories all over Brazil, Argentina and Paraguay, of which 42 labs returned results within the proposed time-scale.
Almost 60 per cent of the participants can be attributed to the food, petfood and feed sector, whereas 20 per cent are research institutes and universities.
Nearly one quarter of results were submitted by private service labs.
Half of the participants used Elisa as the preferred detection method and nearly a third of the laboratories employed HPLC with fluorescence detection.
