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The aim of this study has investigated the degradation of diazinox 5% and five different concentration of diazinon (diazinon 95%, diazinon 15%, diazole 50%, diazit 60% and octadat 60%) before and after storage at 54 +2C for 0, 7, 14 days. Besides, the effects of storage on the formation of its toxic impurities (sulfotep, monothiono-tepp, and water) were studied. The data showed that diazinox 5%, was less stable than different concentrations of diazinon, whereas the percentage loss 38.5% while, diazinon 95% was more stable for storage which has percentage loss is 1.14% after 14 days of storage at 54+2C. For results, diazinon 15%, diazole 50%, diazit 60% and octadat 60% show it’s relatively moderate in its stability compared with other tests which have a percentage loss ranged from 1.33 to 27.2% after 14 days of storage at the same conditions. Moreover, the monothiono-tepp impurity (O, STEPP) in diazinon 95%, diazinox 5% and diazit 60% was more than the maximum permissible concentration of impurity recommended by FAO specifications before and after storage. But diazinon 15%, diazole 50% and octadat 60% was This level are allowed to limit according to FAO before and after storage. While sulfotep impurity in diazinon 95% was more than the maximum permissible concentration of impurity recommended by FAO specifications before and after storage. On the other hand, diazinon 15%, diazinox 5%, diazole Original Research Article Selim and Ibrahim; JAERI, 21(1): 30-43, 2020; Article no.JAERI.54856 31 50%, diazit 60% and octadat 60% were This levels are allowed to limit according to FAO before and after storage. Finally, GC – MS analysis gives the same separation before storage whereas it gives a new separation peak after storage and results showed that of the breakdown of the 2-Isopropyl-6-methylpyrimidin-4-ol main product in diazinon and diazinox. Also, IR analysis showed that the % match of all tested was more than 90 before and after storage.

journal of agriculture and ecology research international

Evaluate the Equivalency of Some Insecticides Pesticides Containing Diazinon and Diazinox, with Emphasis to Their Content of Impurities and Degradation