[Selection of methods for the determination of aflatoxin presence in liquid milk]

Seven methods, recommended for determining aflatoxins in liquid milk, were tested. Most of them were variously modified, mainly for the unavailability of some chemicals needed. Samples of liquid milk, normally prepared for direct consumption, were taken from the retail market (bottled and plastic-sacheted milk, durable milk in speical boxes). The authors describe in detail the two methods now appearing to be the best for current screening tests of market samples of liquid milk. Seventy samples of market liquid milk were tested by these methods, and 25 of them were found to be positive. However, there was no sample to contain as much aflatoxin as determined in the proposed admissible concentration for food.