Key wordsaflatoxins, peanut, butter, treatment, quechers, pre, method, sample, butters, samples, sensitivity, high, detected, aspergillus, using, matrix, spiked, analysis, effect, area, cid, were, average, parasiticus, concentration, flavus, thrice, flow, carried, extraction, solution, min, filter, evaluation, post, evaluated, aflatoxin, maize, supermarket, tube, mrm, compound, fungi, sep, from, found, gas, discard, feasible, student