Chemical sensing using an integrated microfluidic system based on the Berthelot reaction
| Autor: | Peter Gravesen, N. F. de Rooij, Jan Lichtenberg, G. Pennarun-Thomas, Elisabeth Verpoorte, Holger Dirac, Jens Peter Krog, Margaret Sequeira, Antoine Daridon, Dermot Diamond |
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| Předmět: |
Flow injection analysis
Reproducibility Chemistry Microfluidics Color reaction Metals and Alloys Mixing (process engineering) Analytical chemistry Response time Nanotechnology Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Absorbance Materials Chemistry Electrical and Electronic Engineering Instrumentation Sensing system |
| Popis: | The Berthelot reaction is a well-established colorimetric method for the determination of ammonia. It has been investigated with the particular aim of incorporating it into a simple, reliable analytical microfluidic sensing system. Absorbance measurements for the complex formed when this reaction is performed in microfluidic chips compare very well to those obtained in a spectrophotometric system. The very high reproducibility and efficiency of mixing by diffusion in the microfluidic chip make it a useful tool for future studies of other chemical methods where kinetics are a limiting factor for the response time. |
| Databáze: | OpenAIRE |
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