| Autor: |
Santos, Wallans T. P. dos, Ceolin, Marselha P., Albuquerque, Yaico D. T. de, Richter, Eduardo M. |
| Jazyk: |
portugalština |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Química Nova, Volume: 30, Issue: 7, Pages: 1754-1758, Published: 2007 |
| Popis: |
This work presents a new approach to control the flow rate in hydrodynamic flow experiments. The combination of air pressure generated by an aquarium air pump and the pressure generated by a water column were used for this purpose. This device supports a stable flow rate without pulsation for a long period of time. Furthermore, the flow rate can be easily controlled at various values in one or more streams. The performance of this approach was investigated using Fe(CN)6(4-) solutions in flowing systems using amperometric and voltammetric detection in wall-jet configuration. The results showed that the performance of the proposed device was better than a commercial peristaltic pump. It suggests that this approach can be used successfully in flow analysis systems. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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