3 个月
SA People on MSNNaledi food poisoning: Organophosphate identified as cause of deathSome were even found in some retailers. Apart from organophosphate, another group of chemicals used as pesticides are called ...
Analysing unlabelled pesticides is difficult, but the laboratory managed to identify active ingredients from three highly hazardous classes: organophosphates, carbamates and pyrethroids.
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