Gold-gold junction electrodes:the disconnection method.
Gold-gold junction electrodes:the disconnection method.
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金-金连接电极:断开法。
DOI:
10.1002/tcr.201100008
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Dale SE
中科院分区:
文献类型:
--
作者:
Dale SE
The formation of gold‐gold junction electrodes for application in electroanalysis is described here based on electro‐deposition from a non‐cyanide gold plating bath. Converging growth of two hemispherical gold deposits on two adjacent platinum microelectrodes (both 100 µm diameter in glass, ca. 45 µm gap) followed by careful etching in aqueous chloride solution was employed. During growth both gold hemispheres “connect” and during etching “disconnection” is evident in a drop in current. Gold‐gold junctions with sub‐micron gaps are formed and applied for the electroanalytical detection of sub‐micromolar concentrations of hydroquinone in 0.1 M phosphate buffer pH 7 (Erev= 0.04 V vs. SCE) and sub‐micromolar concentration of dopamine in 0.1 M phosphate buffer pH 7 (Erev= 0.14 V vs. SCE). The potential future uses in analysis and limitations of gold‐gold junction electrodes are discussed.DOI 10.1002/tcr.201100008
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影响因子:
7.4
作者:
Zachek, Matthew K.;Takmakov, Pavel;Moody, Benjamin;Wightman, R. Mark;McCarty, Gregory S.
通讯作者:
McCarty, Gregory S.
DOI:
--
发表时间:
2011
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
--
作者:
Anne Vuorema;Sara Shariki;M. Sillanpää;W. Thielemans;Geoffrey W. Nelson;J. Foord;Sara Dale;S. Bending;F. Marken
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作者:
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通讯作者:
F. Marken
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
G. Denuault
通讯作者:
G. Denuault
影响因子:
15
作者:
Bertoncello, Paolo;Edgeworth, Jonathan P.;Unwin, Patrick R.
通讯作者:
Unwin, Patrick R.