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| Issue Date | Title | Author(s) | | 2008 | Pre-concentration procedure for determination of copper and zinc in food samples by sequential multi-element flame atomic absorption spectrometry | Ferreira, Hadla S.; Santos, Ana C. N.; Portugal, Lindomar A.; Costa, Antonio Celso Spinola; Miró, Manuel; Ferreira, Sergio Luis Costa |
| 2000 | An on-line continuous flow system for copper enrichment and determination by flame atomic absorption spectroscopy | Ferreira, Sergio Luis Costa; Lemos, Valfredo Azevedo; Moreira, Barbara C.; Costa, Antonio Celso Spinola; Santelli, Ricardo Erthal |
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