Evaluation of a sol-gel derived carbon composite electrode as an amperometric detector for capillary electrophoresis
文献类型：期刊论文
| 作者 | Sun XH ; Yang XR ; Wang EK |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2003 |
| 卷号 | 991期号:1页码:109-116 |
| 关键词 | ELECTROCHEMICAL DETECTION ZONE ELECTROPHORESIS FIELD-DECOUPLER |
| ISSN号 | 0021-9673 |
| 通讯作者 | wang ek |
| 中文摘要 | in this paper, we report the construction and application of a sol-gel derived carbon composite electrode (cce) as an amperometric detector for capillary electrophoresis. the electrochemical properties were characterized and compared with those of conventional carbon fiber and carbon paste electrode (cpe). experimental results show that peak-to-peak noise of cce was about 20% of cpe and electrode capacitance was comparatively low. when applied to the detection of dopamine and epinephrine, the optimal detection potential for cce was 0.1 v lower than cpe under the same separation conditions; cce with diameter of 75 and 100 mum could achieve a low detection limit of 3.10(-8) and 6.10(-8) m for the detection of epinephrine, which approaching that of the 33-mum diameter carbon fiber electrode. also, the linearity for epinephrine at cce was more than two orders of magnitude, which was slightly wider than that of carbon fiber electrode. applications to real sample analysis were tested by the determination of betahistine dihydrochloride in tablets and human urine. using cce with diameter less than or equal to100 mum as an amperometric detector after capillary electrophoresis separation, a low detection limit and a wide linear range combined with excellent reproducibility were obtained. this cce possesses of many advantages, namely, convenience, ease of fabrication, low cost and high stability. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000181704300010 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://202.98.16.49/handle/322003/17519]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun XH,Yang XR,Wang EK. Evaluation of a sol-gel derived carbon composite electrode as an amperometric detector for capillary electrophoresis[J]. journal of chromatography a,2003,991(1):109-116. |
| APA | Sun XH,Yang XR,&Wang EK.(2003).Evaluation of a sol-gel derived carbon composite electrode as an amperometric detector for capillary electrophoresis.journal of chromatography a,991(1),109-116. |
| MLA | Sun XH,et al."Evaluation of a sol-gel derived carbon composite electrode as an amperometric detector for capillary electrophoresis".journal of chromatography a 991.1(2003):109-116. |
入库方式： OAI收割
来源：长春应用化学研究所
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