搜索结果: 1-15 共查到“化学 Cobalt”相关记录20条 . 查询时间(0.14 秒)
Solid phase extraction of copper, nickel, and cobalt in water samples after extraction using surfactant coated alumina modified with indane-1,2,3-trione 1,2-dioxime and determination by flame atomic absorption spectrometry
Solid phase extraction surfactant coated alumina atomic absorption spectrometry
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2010/12/3
A simple method for simultaneous pre-concentration of Cu, Ni, and Co metal ions prior to their determination by flame atomic absorption spectrometry is reported. The method is based on the extraction ...
'Solid phase extraction of Copper, Nickel and Cobalt in water samples after extraction using surfactant Coated alumina modified with Indane-1,2,3-trione 1,2-dioxime and determination by flame atomic absorption
Solid phase extraction surfactant coated alumina atomic absorption spectrometry
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2010/10/19
A simple method for simultaneous pre-concentration of Cu, Ni, and Co metal ions prior to their determination by flame atomic absorption spectrometry is reported. The method is based on the extraction ...
Study of catalytic activities of nanostructure copper and cobalt supported ZSM-5 catalysts for conversion of volatile organic compounds
Catalytic oxidation volatile organic compound ethyl acetate toluene Cu-ZSM-5 Co-ZSM-5
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2010/10/14
This paper reports the comparison of the activities of nanostructure Cu-ZSM-5 and Co-ZSM-5 catalysts for conversion of ethyl acetate and toluene and deals with the relationship between activity and st...
Interaction of Mefenamic Acid with Cobalt(II) Ions in Aqueous Media: Evaluation via Classic and Response Surface Methods
Mefenamic acid cobalt Box-Behnken complexation classical method
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2010/4/16
Mefenamic acid reacts with cobalt(II) ions in aqueous alkaline medium to form a highly stable deep brown complex at ambient temperature. The complexation process was optimized in terms of pH, temperat...
Orthogonal Signal Correction -- Partial Least Squares Method for Simultaneous Spectrophotometric Determination of Nickel, Cobalt, and Zinc
Nickel cobalt zinc determination spectrophotometric PLS OSC
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2010/4/16
The simultaneous determination of nickel, cobalt, and zinc mixtures by spectrophotometric method is a difficult problem in analytical chemistry, due to spectral interferences. By multivariate calibrat...
Synthesis and Characterization of Complexes of Copper(II), Nickel(II) and Cobalt(II) with vic-Dioximes Bearing N'-p-Aminobenzoyl Benzaldehyde Hydrazone
dioxime hydrazone complex extraction
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2007/12/13
摘要 Six different arylhydrazone derivatives of p-aminobenzoic hydrazide of vic-dioximes were synthesized by reaction of chloroglyoxime and dichloroglyoxime with N'-p-aminobenzoyl benzaldehyde, 4-hydrox...
“Characterization and magnetic properties of carbon-coated cobalt nanocapsules synthesized by the chemical vapor condensation process”,
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2007/7/28
期刊信息
篇名
“Characterization and magnetic properties of carbon-coated cobalt nanocapsules synthesized by the chemical vapor condensation process”,
语种
英文
撰写或编译
作者
Z.H. Wang,C.J. Choi,B.K. Kim,M.S. Hur,Z.D...
Template Synthesis and Structural Characterization of Homo Binuclear Chromium(III), Manganese(III), Iron(III), Cobalt(III), and Ruthenium(III) Complexes with Octaazamacrocyclic Ligands
Synthesis chromium manganese iron cobalt ruthenium macrocycles
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2010/4/19
The Schiff base octaazamacrocyclic ligands derived from primary diamines and 3,6-dimethyl/diphenyl-4,5-diazaocta-3,5-diene-2,7-dione, and their binuclear complexes [M2LCl4]Cl2 [M = Cr(III), Fe(III), C...
First- and Second-Derivative Spectrophotometry for Simultaneous Determination of Copper and Cobalt by 1-(2-Pyridylazo)-2-naphthol in Tween 80 Micellar Solutions
Copper Cobalt PAN Simultaneous Derivative spectrophotometry
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2010/4/19
1-(2-Pyridylazo)-2-naphthol (PAN) has been used for the simultaneous determination of copper and cobalt at trace levels. PAN at pH 1.89 forms red and green complexes with copper and cobalt, respective...
Cobalt Impregnated Alumina: Nitrogen Adsorption Study at 77 K
Cobalt Impregnated Alumina Nitrogen Adsorption Study 77 K
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2010/4/20
Alumina powder is impregnated with cobalt in the concentration range 5% to 20% (w/v) and is characterized by nitrogen adsorption at 77 K by continuous flow method using the Quantasorb sorption system....
Study on the Solid Phase Extraction and Spectrophotometric Determination of Cobalt with 2-(2-Quinolylazo)-5-Diethylaminoaniline
2-(2-quinolylazo)-5-diethylaminoaniline cobalt spectrophotometry solid phase extraction
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2010/4/20
A sensitive, selective and rapid method for the determination of cobalt based on the rapid reaction of cobalt(II) with QADEAA and the solid phase extraction of the Co(II)-QADEAA chelate with C18 membr...
Thermal Decomposition Kinetics of Anilino-p-chlorophenylglyoxime Complexes of Cobalt (II), Nickel (II) and Copper (II)
Anilino-p-chlorophenylglyoxime Cu(II)-, Ni(II)- and Co(II)-complexes Thermal behaviour Thermal decomposition kinetic Pyrolysis DTA/TG/DTG
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2010/4/21
The Co(II), Ni(II) and Cu(II) complexes of anilino-p-chlorophenylglyoxime were synthesised. The thermal behaviour of all complexes was studied by DTA and TG. It was found that pyrolytic decomposition ...
Base Hydrolysis Kinetics of Cobalt(III) Spiro-Octaamine Dimer
Base Hydrolysis Kinetics Cobalt
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2010/4/22
The preparation and characterisation of a cobalt (III) complex of octaaza ligand, 5, 5'-bis(4-amino-2-azabutyl)-1,9-diamino-3,7-diazanonane (octaam) is described. The base hydrolysis kinetics of bis c...
Thermal behaviour of copper(II), nickel(II), cobalt(II) and palladium(II) complexes of N,N-dimethyl-N'-benzoylthiourea
Complexes N,N-dimethyl-N'-benzoylthiourea Thermal behaviour Thermal decomposition kinetics
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2010/4/22
N,N-dimethyl-N'-benzoylthiourea (DMBT) complexes of Ni(II), Cu(II), Co(II) and Pd(II) were synthesised. The thermal decomposition of these metal complexes was investigated by TG, DTG and DTA. A GC-MS ...
Study of the Effect of Number of Layers on the Electrosynthesis of Cobalt(III) Acetate in a Bipolar Packed-Bed Flow Reactor
Electrosynthesis Cobalt(III) acetate Packed-bed flow reactor Bed length
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2010/4/22
Cobalt(III) acetate, which is an important oxidizing agent and catalyst in organic reactions, was electrosynthesized from cobalt(II) acetate solution in a bipolar packed-bed flow reactor. In order to ...