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学科主题: 药学
题名:
The effects of alkyl sulfates on the analysis of phenolic compounds by microchip capillary electrophoresis with pulsed amperometric detection
作者: Ding, Yongsheng; Mora, Maria F.; Merrill, Grant N.; Garcia, Carlos D.
刊名: ANALYST
发表日期: 2007
DOI: 10.1039/b704364c
卷: 132, 期:10, 页:997-1004
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
关键词[WOS]: ELECTRONIC POPULATION ANALYSIS ; MOLECULAR WAVE FUNCTIONS ; POLY(DIMETHYLSILOXANE) MICROFLUIDIC DEVICES ; MICELLAR ELECTROKINETIC CHROMATOGRAPHY ; ELECTROCHEMICAL DETECTION MODES ; SEMIPERMANENT WALL COATINGS ; AGENT DEGRADATION-PRODUCTS ; DOUBLE-CHAINED SURFACTANTS ; SODIUM DODECYL-SULFATE ; GAUSSIAN-TYPE BASIS
英文摘要:

The effects of different surfactants (sodium 2-ethylhexyl sulfate, sodium decyl sulfate, sodium dodecyl sulfate and sodium tetradecyl sulfate) on the analysis of phenolic compounds by microchip-CE with pulsed amperometric detection were investigated. Using sodium decyl sulfate as a model surfactant, the effects of concentration and pH were examined. Under the optimized conditions, the analysis of six phenolic compounds was performed and compared with control runs performed without surfactant. When these surfactants were present in the run buffer, decreases in the migration time and increases in the run-to-run reproducibility were observed. Systematic improvements in the electrochemical response for the phenolic compounds were also obtained. According to the results presented, surfactants enhance the analyte-electrode interaction and facilitate the electron transfer process. These results should allow a more rational selection of the surfactants based on their electrophoretic and electrochemical effects.

语种: 英语
WOS记录号: WOS:000249693900017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66638
Appears in Collections:北京大学药学院_化学生物学系_期刊论文

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作者单位: 1.Univ Texas, Dept Chem, San Antonio, TX 78249 USA
2.Peking Univ, Hlth Sci Ctr, Dept Chem Biol, Beijing 100083, Peoples R China

Recommended Citation:
Ding, Yongsheng,Mora, Maria F.,Merrill, Grant N.,et al. The effects of alkyl sulfates on the analysis of phenolic compounds by microchip capillary electrophoresis with pulsed amperometric detection[J]. ANALYST,2007,132(10):997-1004.
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