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Article
Analysis of Coumarin-Based Phototoxins in Citrus-Derived Essential Oils Using Liquid Chromatography-Mass Spectrometry
The occurrence of coumarin-based photoactive compounds in essential oils has been a concern due to the adverse health effects it has on human health. A fit-for-purpose analytical method for major coumarin-base...
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Article
Automated microfluidic devices integrating solid-phase extraction, fluorescent labeling, and microchip electrophoresis for preterm birth biomarker analysis
We have developed multichannel integrated microfluidic devices for automated preconcentration, labeling, purification, and separation of preterm birth (PTB) biomarkers. We fabricated multilayer poly(dimethylsi...
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Article
Enantiomeric purity control of R-cinacalcet in pharmaceutical product by capillary electrophoresis
The capillary zone electrophoresis method was developed for the chiral separation of R,S-cinacalcet. Cyclodextrins with different substituents were tested in both acidic and alkaline background electrolytes. The ...
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Article
Separation of ketoprofen enantiomers at nanomolar concentration levels by micellar electrokinetic chromatography with on-line electrokinetic preconcentration
Separation of enantiomers represents an extremely important task in the field of analytical chemistry. This paper contributes to the field of the on-line preconcentration of enantiomers by develo** a novel s...
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Article
Polypyrrole-Coated and Polysulfate-Modified CE Capillaries
Fused-silica capillaries covalently coated with polypyrrole offer some interesting properties for capillary electrophoresis. The polymeric, surface-bonded coating is chemically stable and reduces the adsorptiv...
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Article
Dynamic Coating Agents in CE
In capillary electrophoresis (CE) dynamic coating agents are commonly used for manipulating or reversing electroosmotic flow (EOF) and suppressing adsorption of analytes by the silica surface. In this paper we...
