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Determination of Aluminum Phosphide in Fumigants
CHUAN KAO
Journal of Food Science; Volume 46 Issue 5, Pages 1632 - 1632

ABSTRACT:
A simple method has been developed to measure aluminum phosphide (AlP) in fumigants. Phosphide-containing fumigants were reacted with water to release phosphine gas (PH₃), and the gas was oxidized to phosphate by permanganate. The phosphate formed was then determined by the gravimetric quinolinium molybdophosphate method (AOAC, 1975).

http://www3.interscience.wiley.com/journal/119571617/abstract?CRETRY=1&SRETRY=0