• Corpus ID: 92969113

Development of Dual-Electrode Amperometric Detectors for Liquid Chromatography and Capillary Electrophoresis

  title={Development of Dual-Electrode Amperometric Detectors for Liquid Chromatography and Capillary Electrophoresis},
  author={Megan K. Dorris},


Electrochemical detection modes for microchip capillary electrophoresis
The interest in microchip capillary electrophoresis (μ-CE) with electrochemical detection (ECD) has increased considerably because ECD offers perfect features for μ-CE, including remarkable
Prooxidant DNA breakage induced by caffeic acid in human peripheral lymphocytes: involvement of endogenous copper and a putative mechanism for anticancer properties.
It is shown that caffeic acid (a hydroxycinnamic acid), which is a major constituent of coffee, is also capable of DNA breakage in human peripheral lymphocytes, in further support of the hypothesis that anticancer mechanism of plant polyphenols involves mobilization of endogenous copper, possibly chromatin bound copper, and the consequent prooxidant action.
Determination of monoamines in urine by capillary electrophoresis with field-amplified sample stacking and amperometric detection.
A systematic study of the parameters affecting separation and on-line concentration of monoamines has been performed enabling the detection sensitivity of these monoamines to be improved by 5,000 times compared with the conventional electrokinetic injection.
Fabrication of a gold microelectrode for amperometric detection on a polycarbonate electrophoresis chip by photodirected electroless plating
A novel method of photoresist‐free micropatterning coupled with electroless gold plating is described for the fabrication of an integrated gold electrode for electrochemical detection (ED) on a
Determination of urine catecholamines by capillary electrophoresis with dual-electrode amperometric detection.
The results suggest that isoproterenol is a good internal standard to facilitate the measurements of dopamine, epinephrine, and norepinephrine in human urine samples.
Dual electrochemical detection of cysteine and cystine in capillary zone electrophoresis
Abstract A method for the simultaneous determination of cysteine and cystine at the submillimolar level is presented based on the capillary zone electrophoretic (CZE) separation of the analytes
Modulation of endogenous antioxidant system by wine polyphenols in human disease.
The role of oxidative stress and the beneficial effects of wine polyphenols against cardiovascular, cancer, diabetes, microbial, inflammatory, neurodegenerative and kidney diseases and ageing are reviewed.
Beer constituents as potential cancer chemopreventive agents.
Chemopreventive activities observed with these compounds relevant to inhibition of carcinogenesis at the initiation, promotion and progression phases, as well as results from in vivo studies on metabolism, bioavailability and efficacy are summarised in this review.
In-channel dual-electrode amperometric detection in electrophoretic chips with a palladium film decoupler.
An electrophoretic microchip integrated with a Pd-film decoupler and a series-dual electrode was proven practical for routine amperometric detection and found that the oxidation current of catecholamines was enhanced significantly by switching from the single electrode mode to dual-series mode.
Parallel-opposed dual-electrode detector with recycling amperometric enhancement for capillary electrophoresis.
The assembly and characterization of dual-electrode amperometric detection for capillary electrophoresis using a disk electrode and an integrated on-capillary electrode fabricated by depositing a gold film onto the end of the separation capillary are described.