title: [A semiempirical mathematical model for assessment of PH3 residues as exemplified by phosphine-fumigated hazelnuts].
abstract: A mathematical model for the calculation of residues of PH3 in fumigated hazelnuts in dependence on dosage, fumigation- and storage time is discussed. The model is based on the physical process of the diffusion of a gas out of a sphere. An empirical dependence of the diffusion coefficient on the residue levels can be observed. Adequate agreement is obtained between calculated and experimental values.
mesh_terms: D005506:Food Contamination / Q000032:analysis*; D005651:Fumigation; D007300:Insect Control / Q000379:methods; D008433:Mathematics; D008956:Models, Chemical; D009754:Nuts / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D010720:Phosphines / Q000032:analysis*
chemical_list: D010573:Pesticide Residues; D010720:Phosphines
vernacular_title: Ein halbempirisches mathematisches Modell zur Abschätzung von PH3-Rückständen am Beispiel phosphinbegaster Haselnüsse.