Residue Dynamics Studies of Aluminum Phosphide and Magnesium Phosphide in Stored Rice Utilizing a Sulfuric Acid‐Toluene Extraction Coupled with Gas Chromatography Analysis
Abstract:Cereal Chem. 88(5):441-444A method for determination of aluminum phosphide and magnesium phosphide residues in rice was developed and validated. This work, through good laboratory practices, demonstrated aluminum and magnesium phosphide residue dynamics in stored rice. Rice samples were treated with sulfuric acid, which hydrolyzed phosphides to phosphine (PH 3 ), which was simultaneously trapped in toluene. The organic layer was filtered and then analyzed by gas chromatography with a flame photometric detector… Show more
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