Abstract
A mixer with an integrated analysis chamber for (bio-) chemical analysis is presented. This mixer as a stand-alone component provides the full functionality of an integrated multicomponent mixing system for one measurement, as both reactants are supplied by capillary forces instead of pumps. Mixing is done by diffusion. Therefore, no additional fluidic components are needed. To evaluate the properties of the mixing process and the suitability for optical sensing, pH values of different solutions have been measured using a universal indicator. The results agreed with macroscopic determination of pH values. An iodine-iodide-reaction was observed using a modified UV/VIS spectrometer and the results agreed with tests performed using cuvettes.
| Original language | English |
|---|---|
| Pages (from-to) | 57-68 |
| Number of pages | 12 |
| Journal | Sensors and Materials |
| Volume | 12 |
| Issue number | 2 |
| Publication status | Published - 2000 Dec 1 |
Keywords
- Capillary force
- Diffusion
- Microanalysis
- Mixer
- On-site analysis
- Total analysis system
- μ-TAS
ASJC Scopus subject areas
- Instrumentation
- Materials Science(all)