نتایج جستجو برای: organophosphorus compound
تعداد نتایج: 130444 فیلتر نتایج به سال:
The application of ionizing radiation is especially effective advanced oxidation process (AOP) for the removal of organic pollutants from waters and wastes, based on fast reactions with hydroxyl radicals formed as result of radiolysis of water. The reported investigations were carried out with the use of g irradiation from the 60Co source, while for the effective technological applications the ...
It is shown from the kinetics of inhibition of cholinesterase by N-methylcarbamates and organo-phosphates that the LD50 dose is likely to be a much greater multiple of the dose causing signs of poisoning in 50%-of the animals (the ED50) for the carbamates than for the organophosphates. The expected difference was demonstrated by a comparison of the LD50s and ED50s, intravenous and intramuscular...
An overview of general strategy, standard procedures, and critical points, which may be found during carrying out an OPCW Proficiency Test concerning detection and identification of scheduled compounds relevant to Chemical Weapon Convention, has been presented. The observations have been illustrated following the case of the Eight OPCW Designated Laboratories Proficiency Test, which was perform...
It has been shown that several hydrolytic enzymes with different specificities undergo similar reactions with diisopropyl phosphorofluoridate (1) and other related toxic organophosphorus compounds (2). These conclusions were based on kinetic studies, particularly the influence of pH on the rates of reaction, and on inhibition characteristics. Reactions of this type have provided a unique method...
1 Associate Professor, Department of Biochemistry, R.C.S.M. Govt. Medical College, Kolhapur 2 Technician, Department of Biochemistry, Govt. Medical College, Miraj 3 Ph D student, Department of Biochemistry, Govt. Medical College, Miraj Corresponding Author Dr Karan Ningappa Pujari Associate professor, Department of Biochemistry, R.C.S.M. Govt. Medical College, Kolhapur (Maharashtra, India). Ema...
-Phenamiphos interacted with homoionic montmoriUonites of Ca 2+, Mn 2+, Co 2+, and Ni 2+ to form interlayer complexes having basal spacings of about 16.5/~. In the infrared spectra, the v-PO bands were displaced towards lower frequencies suggesting that this group interacted with the exchange cations. Moreover, a small shoulder at 1600 cm -~ indicated the partial protonation of the phenamiphos....
An anhydrous 1:1 crystalline inclusion complex between the organophosphorus insecticide fenitrothion [O,O-dimethyl O-(3-methyl-4-nitrophenyl)phosphorothioate] and the host compound heptakis(2,6-di-O-methyl)-β-cyclodextrin (DIMEB) was prepared and its structure elucidated by single-crystal X-ray diffraction. This revealed two independent host molecules in the asymmetric unit. In one of these, th...
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