نتایج جستجو برای: indicating electrode

تعداد نتایج: 247292  

Journal: :Proceedings of the IRE 1913

Journal: :iranian journal of pharmaceutical research 0
saeed shahrokhian department of chemistry, sharif university of technology, tehran 11155-9516, iran, institute for nanoscience and technology, sharif university of technology, tehran, iran masoumeh ghalkhani department of chemistry, sharif university of technology, tehran 11155-9516, iran, department of chemistry, faculty of science, shahid rajaee teacher training university, lavizan, tehran, iran maryam bayat department of chemistry, sharif university of technology, tehran 11155-9516, iran fatemeh ghorbani-bidkorbeh department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

the voltammetric performance of edge-plane pyrolytic graphite (epg) electrode via adsorptive stripping voltammetry was investigated for study of the electrochemical behavior of omeprazole (omz) in aqueous solution. the results revealed that the oxidation of omz is an irreversible ph-dependent process that proceeds with the transfer of one electron and one proton in an adsorption-controlled mech...

Journal: :journal of physical & theoretical chemistry 2007
m. aghaie m. h. fekri m. giahi e. baghdar s. farhadi

in order to study the cu(ii) ion selective electrode, an optimized membrane was prepared by mixing of 30 mg of pvc powdered, 5 mg of considered ionophore, 60 mg of plasticizer and 5 mg of additive. the sensor showed a near nernstian response for cu(ii) ions over a concentration range from 1.0×0-6 –1.0×0-2 m with a slope of 28.90.5 mv per concentration decade with a working ph range of 3.5-6.3. ...

Journal: :analytical and bioanalytical chemistry research 2015
molla tefera shimelis admassie merid tessema solomon mehretie

a sensor, based on multi-wall carbon nanotubes modified glassy carbon electrode (mwcnt/gce), was developed for determination of fenitrothion. determining the surface area of mwcnt/gce showed that this surface is three times more active than that of a glassy carbon electrode. the experimental parameters, such as the amount of mwcnts, ph of the fenitrothion solution, preconcentration potential an...

Journal: :international journal of nanoscience and nanotechnology 2015
p. hadiyan a. rouhollahi m. adibi s. mortazavi

glassy carbon (gc) is the most commonly used carbon-based electrode in the analytical laboratory. because of the high background current and low electrode response, modification of this electrode can be done by various materials and techniques. an ionic liquid (il), 1-methyl-3-(3-trimethoxysilyl propyl) imidazoliumbis (trifluoromethylsulfonyl) imide, was covalently cross linked onto the gc surf...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2000
hassan khodakarami hedayat o. ghourchian

a pvc-based membrane containing cerium phosphate was developed. unlike the cerium phosphate itself that acts as a cation exchanger, the membrane exhibited anion-exchange properties. therefore, the utility of this compound as a sensory element for detection of molybdate ions was pursued. the response of molybdate selective electrode based on this membrane was perfectly linear in the concentratio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1390

abstract venlafaxine, 1–[2–(dimethylamino)–1–(4–methoxyphenyl) ethyl]cyclohexanol hydrochloride is a novel non-tricyclic antidepressant. venlafaxine is a second generation antidepressant drug, has a neuropharmacologic profile distinct from that of existing antidepressants including tricyclic compounds, selective serotonin reuptake inhibitors and monoamine oxidase inhibitors. venlafaxine impart...

Journal: :Journal of The Electrochemical Society 2023

In this study, we propose a novel Si electrodeposition method using liquid Zn electrode in molten KF–KCl. Electrochemical measurements and electrolysis were conducted KF–KCl–K 2 SiF 6 melt at 923 K. Cyclic voltammograms revealed that the reduction currents 0.75–1.0 V vs K + /K attributed to formation of Si–Zn alloy. Additionally, was deposited through potentiostatic 0.75 boron nitride (BN) cruc...

Journal: :The Journal of the Acoustical Society of America 2008
Bryan E Pfingst Rose A Burkholder-Juhasz Li Xu Catherine S Thompson

In modern cochlear implants, much of the information required for recognition of important sounds is conveyed by temporal modulation of the charge per phase in interleaved trains of electrical pulses. In this study, modulation detection thresholds (MDTs) were used to assess listeners' abilities to detect sinusoidal modulation of charge per phase at each available stimulation site in their 22-el...

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