Results 101 to 110 of about 20,987 (223)
Effects of Al(III) and Nano-Al13 Species on Malate Dehydrogenase Activity
Sensors, 2011 The effects of different aluminum species on malate dehydrogenase (MDH) activity were investigated by monitoring amperometric i-t curves for the oxidation of NADH at low overpotential using a functionalized multi-wall nanotube (MWNT) modified glass ...
Rong Fu Chen +5 more
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The use of nanoparticles in electroanalysis: a review
Analytical and Bioanalytical Chemistry, 2006 Nanoparticles can display four unique advantages over macroelectrodes when used for electroanalysis: enhancement of mass transport, catalysis, high effective surface area and control over electrode microenvironment. Therefore, much work has been carried out into their formation, characterisation and employment for the detection of many electroactive ...
Welch, C, Compton, R
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Mass transfer enhancement produced by laser induced cavitation
, 2006 A microelectrode is used to measure the mass transfer perturbation and characteristics during the growth and subsequent collapse of a single bubble (which, following its initial expansion, achieved a maximum radius, Rm, of not, vert, similar500–1000 ?m).
Birkin, Peter R. +3 more
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BUNSEKI KAGAKU, 1960 金属コバルト中の純分を電解分析によって定量する方法を検討した.電解液としてピロリン酸ナトリウム-マンモニア溶液または炭酸アンモニウムアンモニア溶液を用いればコバルトの酸化物の析出にもとづく過大の誤差が生じることなく0.01%程度の誤差で定量が可能である.電流密度は0.25amp/dm2,電解温度は45～60℃,電解時間は約20時間,試料秤取量は1gにするを要する.電流密度が高くなったり,電解温度が低くなると,異常析出がおこり電着物が黒色となる.
Shigeru YOKOSUKA, Humiki MORIKAWA
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BiosensorsA novel electrochemical detection method utilizing a cost-effective hybrid-modified electrode has been established. A glassy carbon (GC) modified electrode was tested for its ability to measure electrochemical tTG antibody levels, which are essential for
Angela Gabriela Pãun +6 more
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Química NovaThis article critically reviews the spectrometric, chromatographic and electroanalytical methods applied for the identification and quantification of organic and inorganic compounds containing Se and their applications in food, biological and natural ...
Fernanda C. O. L. Martins +3 more
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[Electroanalysis of nifedipine].
Acta pharmaceutica Hungarica, 1990 Nifedipine is an electrochemically active compound. Reducibility of 2-nitrophenyl group on dropping mercury electrode renders polarographic determination of nifedipine possible. Reductive half-wave potential of nitro group depends on saturation of neighbouring pyridine ring i.e.
P, Tömpe, A, Halbauerné Nagy
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Quantificação do pesticida diclorvos por voltametria de onda quadrada em águas puras e naturais
Química Nova, 2004 This work reports the use of square wave voltammetry (SWV) to analyse the electrochemical reduction of dichlorvos (2, 2-dichlorovinyl-dimethylphosphate) in spiked pure and natural waters.
Oliveira Robson T. S. +1 more
doaj
MoleculesA new molecularly imprinted polymer (MIP)-based disposable electrochemical sensor for dipyridamole (DIP) determination was obtained. The sensor was rapidly prepared by potentiodynamic electrochemical polymerization on a pencil graphite electrode (PGE ...
Daniel Preda +4 more
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Electrocatalytic oxidation of dithionite at a cobalt(II)tetrasulfonated phthalocyanine and 5,10,15,20-tetrakis-(4-sulfonatophenyl)porphyrin cobalt(II) modified gold electrode in alkaline solution [PDF]
, 2005 A.?B.?Lever +28 more
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