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| Issue Date | Title | Author(s) | | 2004 | Optimization of the preconcentration system of cadmium with 1(2-thiazolylazo)-p-cresol using a knotted reactor and flame atomic absorption spectrometric detection | Cerutti, S.; Ferreira, Sergio Luis Costa; Gásquez, J. A.; Olsina, R. A.; Martinez, L. D. |
| 2003 | Use of factorial design and Doehlert matrix for multivariate optimisation of an on-line preconcentration system for lead determination by flame atomic absorption spectrometry | Ferreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos; Bezerra, Marcos de Almeida; Lemos, Valfredo Azevedo; Bosque-Sendra, Juan Manuel |
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