Artículo
Abstract:
A new strategy for the instrumental control of sample dispersion in continuous flow systems is presented. The method is based on shaking a loosely held straight reactor while the sample travels through the flow injection manifold. This external disturbance yields a sample transport more similar to the plug flow type because of the changes promoted on the flow pattern. Up to a three-fold increase in peak height, a comparable reduction in peak width and a more Gaussian peak profile are observed when the signals obtained with the shaken reactor are compared with those obtained with the same reactor but static. Improvements in the analytical performance as a function of different operational variables are shown for systems with or without a chemical reaction. Analytical implications and possible uses are discussed since this strategy allows the control of dispersion by simply selecting the frequency and amplitude of oscillation.
Registro:
| Documento: | Artículo |
| Título: | Oscillatory control of sample dispersion in a continuous flow system |
| Autor: | Bruno, H.; Andrade, F.; Iñón, F.; Tudino, M.; Troccoli, O. |
| Filiación: | Fac. de Ciencias Exact. y Naturales, Lab. de Analisis de Trazas/INQUIMAE, Ciudad Universitaria, Pab.II, 3er. Piso, (1428) Buenos Aires, Argentina |
| Palabras clave: | analytic method; article; chemical reaction; dispersion; flow injection analysis; flow kinetics; oscillation; reaction analysis; reactor |
| Año: | 2001 |
| Volumen: | 126 |
| Número: | 3 |
| Página de inicio: | 394 |
| Página de fin: | 398 |
| DOI: | http://dx.doi.org/10.1039/b008157o |
| Título revista: | Analyst |
| Título revista abreviado: | Analyst |
| ISSN: | 00032654 |
| CODEN: | ANALA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032654_v126_n3_p394_Bruno |
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Citas:
---------- APA ----------
Bruno, H., Andrade, F., Iñón, F., Tudino, M. & Troccoli, O. (2001) . Oscillatory control of sample dispersion in a continuous flow system. Analyst, 126(3), 394-398.http://dx.doi.org/10.1039/b008157o
---------- CHICAGO ----------
Bruno, H., Andrade, F., Iñón, F., Tudino, M., Troccoli, O. "Oscillatory control of sample dispersion in a continuous flow system" . Analyst 126, no. 3 (2001) : 394-398.http://dx.doi.org/10.1039/b008157o
---------- MLA ----------
Bruno, H., Andrade, F., Iñón, F., Tudino, M., Troccoli, O. "Oscillatory control of sample dispersion in a continuous flow system" . Analyst, vol. 126, no. 3, 2001, pp. 394-398.http://dx.doi.org/10.1039/b008157o
---------- VANCOUVER ----------
Bruno, H., Andrade, F., Iñón, F., Tudino, M., Troccoli, O. Oscillatory control of sample dispersion in a continuous flow system. Analyst. 2001;126(3):394-398.http://dx.doi.org/10.1039/b008157o
