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This study describes the optimization and quantification of UV-photochemical vapor generation using the Se(IV) standard, together with application of the proposed technique for practical purposes. The generation process was performed in continuous mode and was combined with atomic absorption spectrometry utilizing an externally heated quartz furnace as an atomizer. Formic acid with a concentration...
In this work, a simple, fast and sensitive method for the determination of Mn, Ni, Rb and Sr in powdered samples of guarana (Paullinia cupana), catuaba (Anemopaegmaglaucum), ginseng (Panax ginseng), ginger (Zingiber officinalis), mate (Ilex paraguariensis) and coffee (Coffea arabica) was developed using direct solid sample analysis and high-resolution continuum source electrothermal atomic absorption...
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