Second-order and higher-order multivariate calibration methods applied to non-multilinear data using different algorithms
We discuss and evaluate the current state of second-order and higher-order multivariate calibration methods devoted to the determination of compounds in non-multilinear data systems. We examine possible causes of multilinearity deviations: (1) a non-linear relationship between signal and analyte con...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/127249 |
| Acceso en línea: | http://hdl.handle.net/11336/127249 |
| Access Level: | acceso abierto |
| Palabra clave: | ALGORITHM ANALYTE BIOLOGICAL SAMPLE COMPONENT PROFILE CONCENTRATION DETERMINATION ENVIRONMENTAL SAMPLE MULTILINEARITY DEVIATION MULTIVARIATE CALIBRATION METHOD NON-MULTILINEAR DATA https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | We discuss and evaluate the current state of second-order and higher-order multivariate calibration methods devoted to the determination of compounds in non-multilinear data systems. We examine possible causes of multilinearity deviations: (1) a non-linear relationship between signal and analyte concentration; (2) a signal for a given sample that is non-multilinear; and, (3) component profiles that are not constant across the different samples. We discuss the advantages and the limitations of the algorithms available to cope with these different situations. The review covers relevant analytical problems found in samples of environmental and biological interest, highlighting some significant examples, and evaluating the advantages and the limitations of the different algorithms available. |
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