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Three electrode electrochemical microfluidic cell: construction and characteriz...
Silva,Rodrigo A. B. da; Almeida,Edimar G. N. de; Rabelo,Adriano C.; Silva,Abílio T. C. da; Ferreira,Lucas F.; Richter,Eduardo M.This work describes the construction and characterization of an electrochemical flow-through microcell with the three electrodes (working, pseudo-reference, and auxiliary) inserted in microchannels with thickness smaller than 20 µm. These microchannels were constructed between two stacked polycarbonate slides using one or more overlapped toner masks as spacer. This strategy allows the construction of microcells...
Solution and surface photochemistry of fenarimol: A comparative study
Silva, José P. da; Mateus, M. Conceição D. A.; Silva, Abílio M. da; Ferreira, Luís F. Vieira; Burrows, Hugh D.The photochemistry of the pesticide fenarimol was studied in methanol and on a cellulose surface. The ground state absorption and fluorescence spectra are similar in solution and at the solid/gas interface. Room temperature phosphorescence emission was observed in cellulose. Transient absorption of fenarimol and of its chromophoric units, chlorobenzene and pyrimidine, showed a common absorption band centered at...
Os sistemas de informação geográfica no suporte a serviços móveis para o cidadão
Arouca, David; Figueiredo, Carlos; José, Rui; Machado, Ricardo J.; Monteiro, Paula; Moreira, Adriano; Pascoe, Jason; Pinheiro, Luís; Rodrigues, HelenaO seguinte artigo descreve os trabalhos de investigação efectuados no âmbito do projecto USE-ME.GOV (USability-drivEn open platform for Mobile GOVernment), um projecto do 6º Programa Quadro, que tem como objectivo o fornecimento de uma plataforma aberta para a disponibilização de serviços móveis ao cidadão, podendo ser partilhada por uma rede de autarquias, instituições públicas e outros fornecedores de serviço...
Fenarimol solar degradation pathways and photoproducts in aqueous solution
Mateus, M. Conceição D. A.; Silva, Abílio M. da; Burrows, Hugh D.http://www.sciencedirect.com/science/article/B6V74-44X00X6-2/1/82feeddfa7673b496683c783fbe3fb85
Kinetics of photodegradation of the fungicide fenarimol in natural waters and i...
Mateus, M. Conceição D. A.; Silva, AbÍlio M. da; Burrows, Hugh D.The rate of photodegradation of the fungicide fenarimol ([alpha]-(2-chlorophenyl)-[alpha]-(4-chlorophenyl)-5-pyrimidine-methanol) by solar radiation has been studied in natural waters with different salinities. Photodegradation rates and quantum yields are found to decrease with increasing salinity. ; http://www.sciencedirect.com/science/article/B6V73-3YF3VXJ-6/1/852ccb9d579f1edc3ac6d240675bf88b
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