Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1190008 | Food Chemistry | 2008 | 5 Pages |
Abstract
Spectrophotometric data followed by a suitable treatment of chemometric analysis were used for the simultaneous determination of monosodium glutamate (MSG), guanosine 5′-monophosphate (GMP) and inosine 5′-monophosphate (IMP) in stock cube samples, without any previous extraction step. By this way, the overlapping of the absorption spectra was resolved using a PLS-1 model. The concentration for experimental calibration matrix were varied between 5.03–34.2 μg mL−1 for IMP and GMP, and 448–1399 μg mL−1 for MSG. The relative errors of prediction (REPCV %) were 1.8, 2.8 and 3.1 for IMP, GMP and MSG, respectively.To verify the accuracy of the proposed method a recovery study on real samples was carried out with satisfactory results (92–110%).
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Carolina C. Acebal, Adriana G. Lista, Beatriz S. Fernández Band,