Pesticides thiophosphoric acid

Application, Phosphorus(V) sulfochloride is mainly utilized in the manufacture of ester chlorides of thiophosphoric acids (precursors for pesticides). 

Formation of 2-isopropyl-6-methyl-4-hydroxypyrimidine by chemical hydrolysis of diazinon in soils has been reported earlier (1, 10, 12), The initial step in diazinon degradation in soils appeared to be chemical hydrolysis principally (I, 9, 10) and soil microflora attack the products of the chemical reaction, the pyrimidine and diethyl-thiophosphoric acid, rather than intact diazinon (23). Based on these results, Kearney and Helling (29) in their review on reactions of pesticide in soils included hydrolysis of diazinon as a clear example for chemical transformation of pesticide in soil. In contrast, the data summarized here demonstrated the rapid biological hydrolysis of diazinon molecule which occurs when... 

In view of the ionization of samples of low volatility, desorption chemical ionization (DCI) is one of the most promising new techniques. The sample is placed on a heatable probe tip or on a field desorption emitter probe and introduced directly into the plasma of a chemical ion source. It was shown that by such an exposure of the sample to the ion plasma, mass spectra can be obtained at much lower temperatures than usually required . This extraordinarily simple sample handling and the apparently more intense and better reproducible ion beam than in field desorption ionization have obviously induced a rapidly growing field of applications of DCI. This development is also supported by a growing number of DCI probe devices available from different manufacturers at relatively reasonable prices. Although many applications, for instance to underivatized peptides , to cyclic adenosine monophosphate, guanosine, and thiophosphoric acid pesticides , as well to creatinine and arginine have been reported, the analytical potential of DCI is not yet exhausted and will obviously result in many new possibilities in analytical research (for recent publications see ). 

Amidate Amidate (pesticide) 0,0-Dimethyl phosphoramidothioate 0,0-Dimethyl thiophosphor-amidate 0,0-Dimethyl thiophosphoramide E-118 amide EINECS 241-342-2 NSC 133028 Phosphoramidothioic acid, 0,0-dimethyl ester. 

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