Solvent Extraction of Metals by Organophosphorus Compounds, (II)
نویسندگان
چکیده
منابع مشابه
Detection of organophosphorus compounds by covalently immobilized organophosphorus hydrolase.
As a consequence of organophosphorus (OP) toxins posing a threat to human life globally, organophosphorus hydrolase (OPH) has become the enzyme of choice to detoxify such compounds. Organophosphorus hydrolase was covalently immobilized onto a quartz substrate for utilization in paraoxon detection. The substrate was cleaned and modified prior to chemical attachment. Each modification step was mo...
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Oxime extractants 3-tert-butyl-2-hydroxy-5-methyl benzaldehyde oxime (HL1) and 3-tert-butyl-2-hydroxy-5-methoxy benzaldehyde oxime (HL2) were synthesized and characterized by conventional spectroscopic methods. Suitable lipophilic nature of the prepared extractants allowed examining the ability of these molecules for extr...
متن کاملSolvent extraction of metals with potassium-dihydro-bispyrazolyl-borate.
The extraction of Cu(II), Ni(II), Co(II), Cd(II), Zn(II), Pb(II) and Mn(II) with potassium-dihydro-bispyrazolyl-borate (H(2)BPz(2)(-)) in dichloromethane has been studied. Extraction constants (logK(ex)) have been calculated for all metal systems and were compared with those obtained with dibenzoylmethane (DBM), thenoyltrifluoroacetone (HTTA) and 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (HPMBP)...
متن کاملEsterases Reacting with Organophosphorus Compounds
The sixty-seven papers in this book are grouped under the following chapters: Esterase Structures, Catalytic Properties of Cholinesterases, Catalytic Properties of Paraoxonases and Related Esterases, Biology of Cholinesterases, Biology of Paraoxonases and Related Esterases, Toxicity and Degradation of Organophosphorus Compounds, Neuropathy Target Esterase, and Miscellaneous. The chapters are pr...
متن کاملThe inhibition of hydrolytic enzymes by organophosphorus compounds.
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...
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ژورنال
عنوان ژورنال: Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan
سال: 1962
ISSN: 0004-7120
DOI: 10.3327/jaesj.4.166