Time Based Injector
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Effect of components of the matrix in pesticide analysis by gas chromatography / Efeito de componentes da matriz na análise de agrotóxicos por cromatografia gasosa
This work aimed to systematically study the matrix effect on the measurement of pesticides chlorpyrifos, λ−cyhalothrin, cypermethrin and deltamethrin by gas chromatography with electron capture detector. The matrix effect is attributed to the presence of co-extractives in the organic phase during extraction. In this work, the phenomenon matrix eff
Publicado em: 2009
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2. Desenvolvimento de instrumentação dedicada a cromatografia líquida capilar (cLC) / Development of dedicated instrumentation to capillary liquid chromatography (cLC)
Since the chromatography was introduced by Tswett, in the beginning of the 20th century, the technique has suffered a constant progress. However, the miniaturization of liquid chromatography, instead of its promising start, it is still too slow and this technique has not reached a wide divulgation so far. It is important to mention that the number of groups
Publicado em: 2008
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3. Reator de leito expandido em escala plena com zonas anaeróbia e aeróbia sobrepostas: remoção conjunta de matéria orgânica e nutrientes e estudo do comportamento microbiológico do biofilme, por respirometria e microsensor de OD / Full scale expanded bed reactor with overlaid anaerobic and aerobic zones: joint removal of organic matter and nutrients and the study of microbiological biofilm behavior and DO microsensor
The current research aimed the development of a 159 M POT.3total volume biological reactor, with a expanded and partially aerated granular coal bed (activated and anthracite), to promote organic matter and nutrients (N and P) removal from wastewater due to the maintenance of anaerobic and aerobic environments, stratified throughout the height of the reactor
Publicado em: 2007