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https://hdl.handle.net/10216/97016| Author(s): | Joao M M Leitao Helena Goncalves Joaquim C G E Esteves da Silva |
| Title: | Parallel factor analysis of EEM of the fluorescence of carbon dots nanoparticles |
| Issue Date: | 2010 |
| Abstract: | The effect of experimental factors [pH and Hg(II)] on the fluorescence excitation emission matrices (EEMs) of nanosensor carbon dots (CDs) was analyzed by multiway decomposition methods based on parallel factor (PARAFAC) analysis. PARAFAC analysis of the EEM structures identifies three components corresponding to two different-sized CDs with the Hg(II) and pH profiles highly correlated plus a background. Parallel profiles with Linear Dependences (PARALIND) model with three components in the excitation-emission spectral modes and two components in the Hg(II) or pH mode gave similar results as PARAFAC, but is more useful from a theoretical point of view because PARALIND shows that the two different-sized CDs have similar chemical reactivity toward Hg(II) and pH. PARAFAC2 was used as a trilinear confirmatory test of the data structures under analysis. Copyright (C) 2010 John Wiley & Sons, Ltd. |
| Subject: | Espectroquímica, Quimíca inorgânica, Engenharia electrotécnica, electrónica e informática Spectrochemistry, Inorganic chemistry, Electrical engineering, Electronic engineering, Information engineering |
| Scientific areas: | Ciências da engenharia e tecnologias::Engenharia electrotécnica, electrónica e informática Engineering and technology::Electrical engineering, Electronic engineering, Information engineering |
| DOI: | 10.1002/cem.1327 |
| URI: | https://hdl.handle.net/10216/97016 |
| Document Type: | Artigo em Revista Científica Internacional |
| Rights: | restrictedAccess |
| Appears in Collections: | FCUP - Artigo em Revista Científica Internacional |
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|---|---|---|---|---|
| 48818.pdf Restricted Access | 599.98 kB | Adobe PDF | View/Open |
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