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A escolha da faixa espectral no uso combinado de métodos espectroscópicos e quimiométricos
| Content Provider | Scilit |
|---|---|
| Author | Oliveira, Flavia C. C. de Souza, Antônio T. P. C. Dias, José A. Dias, Silvia C. L. Rubim, Joel C. |
| Copyright Year | 2004 |
| Description | A method is presented for the choice of spectral regions when absorption measurements are coupled to chemometric tools to perform quantitative analyses. The method is based on the spectral distribution of the relative standard deviation of concentration (s c/c). It has been applied to the development of PLS-FTNIR calibration models for the determination of density and MON of gasoline, and ethanol content and density of ethanol fuel. The new method was also compared with the correlation (R²) method and has proved to generate PLS calibration models that present better accuracy and precision than those based on R² |
| Related Links | http://www.scielo.br/pdf/qn/v27n2/19265.pdf http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0100-40422004000200009&lng=pt&nrm=iso&tlng=pt |
| Ending Page | 225 |
| Page Count | 8 |
| Starting Page | 218 |
| ISSN | 01004042 |
| e-ISSN | 01004042 |
| DOI | 10.1590/s0100-40422004000200009 |
| Journal | Química Nova |
| Issue Number | 2 |
| Volume Number | 27 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 2004-04-01 |
| Access Restriction | Open |
| Subject Keyword | Química Nova Spectral Region Selection |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
