Spectrophotometric Simultaneous Determination of Amaranth, Ponceau 4R, Allura Red and Red 2G by Partial Least Squares and Principal Component Regression Multivariate Calibration
| Autor: | R. Martín-Villamuelas, A. M. Contento-Salcedo, J. J. Berzas-Nevado, C. Guiberteau-Cabanillas |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
medicine.diagnostic_test
Chemistry Biochemistry (medical) Clinical Biochemistry Analytical chemistry Amaranth Biochemistry Ponceau 4R Analytical Chemistry Chemometrics chemistry.chemical_compound Red 2G Spectrophotometry Principal component analysis Partial least squares regression Electrochemistry medicine Principal component regression Spectroscopy |
| Zdroj: | Analytical Letters. 32:1879-1898 |
| ISSN: | 0003-2719 |
| DOI: | 10.1080/00032719908542940 |
| Popis: | The multivariate calibration methods, partial least square regression type 1 (PLS 1) and principal component regression (PCR), were proposed for the simultaneous spectrophotometry determination of Amaranth (E-123), Ponceau 4R (E-124), Allura red (E-129) and Red 2G (E-128) in their mixtures. The parameters of the chemometric procedures were optimized and the proposed method was validated with synthetic samples and applied to analyze these dyes in spiked samples of beverages with satisfactory results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|