Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems
<abstract language="eng">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 stab...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2007-01-01
|
| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000700044 |
| _version_ | 1818953438566809600 |
|---|---|
| author | Wallans T. P. dos Santos Marselha P. Ceolin Yaico D. T. de Albuquerque Eduardo M. Richter |
| author_facet | Wallans T. P. dos Santos Marselha P. Ceolin Yaico D. T. de Albuquerque Eduardo M. Richter |
| author_sort | Wallans T. P. dos Santos |
| collection | DOAJ |
| description | <abstract language="eng">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. |
| first_indexed | 2024-12-20T10:06:17Z |
| format | Article |
| id | doaj.art-4717603351e749e5a7c032a16c745cdd |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-20T10:06:17Z |
| publishDate | 2007-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-4717603351e749e5a7c032a16c745cdd2022-12-21T19:44:13ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642007-01-013071754175810.1590/S0100-40422007000700044Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systemsWallans T. P. dos SantosMarselha P. CeolinYaico D. T. de AlbuquerqueEduardo M. Richter<abstract language="eng">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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000700044flow rates controlwater columnflow analysis |
| spellingShingle | Wallans T. P. dos Santos Marselha P. Ceolin Yaico D. T. de Albuquerque Eduardo M. Richter Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems Química Nova flow rates control water column flow analysis |
| title | Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems |
| title_full | Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems |
| title_fullStr | Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems |
| title_full_unstemmed | Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems |
| title_short | Uso da pressão gerada por uma coluna de água para controle da vazão em sistemas de análises em fluxo The use of pressure generated by a water column to control flow rates in flow analysis systems |
| title_sort | uso da pressao gerada por uma coluna de agua para controle da vazao em sistemas de analises em fluxo the use of pressure generated by a water column to control flow rates in flow analysis systems |
| topic | flow rates control water column flow analysis |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000700044 |
| work_keys_str_mv | AT wallanstpdossantos usodapressaogeradaporumacolunadeaguaparacontroledavazaoemsistemasdeanalisesemfluxotheuseofpressuregeneratedbyawatercolumntocontrolflowratesinflowanalysissystems AT marselhapceolin usodapressaogeradaporumacolunadeaguaparacontroledavazaoemsistemasdeanalisesemfluxotheuseofpressuregeneratedbyawatercolumntocontrolflowratesinflowanalysissystems AT yaicodtdealbuquerque usodapressaogeradaporumacolunadeaguaparacontroledavazaoemsistemasdeanalisesemfluxotheuseofpressuregeneratedbyawatercolumntocontrolflowratesinflowanalysissystems AT eduardomrichter usodapressaogeradaporumacolunadeaguaparacontroledavazaoemsistemasdeanalisesemfluxotheuseofpressuregeneratedbyawatercolumntocontrolflowratesinflowanalysissystems |