Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Interrupted amperometry : the new possibilities in electrochemical measurements. / Semenova, Ekaterina; Navolotskaya, Daria; Ermakov, Sergey.
в: Pure and Applied Chemistry, Том 89, № 10, 10.2017, стр. 1459-1469.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Interrupted amperometry
T2 - the new possibilities in electrochemical measurements
AU - Semenova, Ekaterina
AU - Navolotskaya, Daria
AU - Ermakov, Sergey
PY - 2017/10
Y1 - 2017/10
N2 - Interrupted amperometry is a new highly sensitive method for diffusion current measuring. The main feature of the proposed technique is the use of capacitive current as the analytical signal together with the faradaic current. The conventional electrical circuit for amperometric measurements is complemented by a switcher that enables periodical interruption of the circuit. The technique was successfully applied for direct amperometric determination of lead, cadmium and iron ions, phenol and hydroquinone; for determination of dichromate ion via titration; for determination of dissolved oxygen in water by Clark-type sensor. In all the mentioned cases the achieved values of analytical characteristics are significantly better than for conventional amperometric methods. There are limitations and perspectives of the proposed technique considered.
AB - Interrupted amperometry is a new highly sensitive method for diffusion current measuring. The main feature of the proposed technique is the use of capacitive current as the analytical signal together with the faradaic current. The conventional electrical circuit for amperometric measurements is complemented by a switcher that enables periodical interruption of the circuit. The technique was successfully applied for direct amperometric determination of lead, cadmium and iron ions, phenol and hydroquinone; for determination of dichromate ion via titration; for determination of dissolved oxygen in water by Clark-type sensor. In all the mentioned cases the achieved values of analytical characteristics are significantly better than for conventional amperometric methods. There are limitations and perspectives of the proposed technique considered.
KW - amperometry
KW - analytical chemistry
KW - aqueous solutions
KW - chemical sensors
KW - electrochemistry
KW - electrodes
KW - heavy metals
KW - iron
KW - Mendeleev XX
KW - oxygen
KW - phenol
KW - sensitivity
KW - trace elements
KW - ANODIC-STRIPPING VOLTAMMETRY
KW - FLOW-INJECTION ANALYSIS
KW - CARBON-PASTE ELECTRODE
KW - PULSE VOLTAMMETRY
KW - POLAROGRAPHY
KW - TRANSFORM
KW - MERCURY
KW - WAVELET
KW - CHROMATOGRAPHY
KW - METHANOL
U2 - 10.1515/pac-2017-0302
DO - 10.1515/pac-2017-0302
M3 - статья
VL - 89
SP - 1459
EP - 1469
JO - Pure and Applied Chemistry
JF - Pure and Applied Chemistry
SN - 0033-4545
IS - 10
ER -
ID: 9461444