Citation: Ju-Jie Ren, Na Sun, Min Cui, Xue-Ping Ji. The selectivity of triethylene glycol modified glassy carbon electrode for charged and uncharged pieces[J]. Chinese Chemical Letters, ;2015, 26(11): 1421-1425. doi: 10.1016/j.cclet.2015.07.028 shu

The selectivity of triethylene glycol modified glassy carbon electrode for charged and uncharged pieces

Ju-Jie Ren ^a,, ,
Na Sun ^a ,
Min Cui ^a ,
Xue-Ping Ji ^b

1.
a Department of Chemistry, School of Sciences, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2.
b Department of Medical Chemistry, Hebei Medical University, Shijiazhuang 050017, China

Corresponding author: Ju-Jie Ren,
Received Date: 29 April 2015
Available Online: 15 July 2015

A triethylene glycol modified glassy carbon electrode (TEG-GCE) was fabricated by a controlledpotential electrolysis procedure. The performance of the film on the modified electrode surface was investigated by cyclic voltammetry with different probes. It was firstly found that while neutral pieces could penetrate the TEG film on the GCE surface, the ionic pieces, whatever it is anion or cation, was blocked by the film. This property was successfully used for determining dopamine (DA) in the presence of ascorbic acid (AA) with differential pulse voltammetry (DPV).
- Triethylene glycol
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