2002
DOI: 10.1081/al-120013047
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Simultaneous Spectrophotometric Determination of Folic Acid, Pyridoxine, Riboflavin, and Thiamine by Partial Least-Squares Regression

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Cited by 18 publications
(13 citation statements)
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“…Collado et al 21 applied PLS to quantify nicotinamide and inosine in ophthalmic solutions by UV-Vis spectrophotometry with good results. The application of the PLS algorithm was an excellent tool to eliminate the spectral interferences in the quantification of the analytes of interest, which was satisfactorily demonstrated by Ghasemi and Vosough 22 and Aberásturi et al 23 in the resolution of four-component mixtures of vitamins.…”
Section: Introductionmentioning
confidence: 90%
See 1 more Smart Citation
“…Collado et al 21 applied PLS to quantify nicotinamide and inosine in ophthalmic solutions by UV-Vis spectrophotometry with good results. The application of the PLS algorithm was an excellent tool to eliminate the spectral interferences in the quantification of the analytes of interest, which was satisfactorily demonstrated by Ghasemi and Vosough 22 and Aberásturi et al 23 in the resolution of four-component mixtures of vitamins.…”
Section: Introductionmentioning
confidence: 90%
“…For the resolution of four-vitamin mixtures, Aberásturi et al 23 used an experimental design of two levels plus one central point (4 2 + 1) for calibration matrix, while Ghasemi and Vosough 22 proposed a calibration set of solutions in which absorbances did not exceed a value of 1.0. In the first work, there were not considered samples without at least one of the components of interest, while in the work of Ghasemi and Vosough were considered.…”
Section: Application Of Pls To the Multicomponent Systemmentioning
confidence: 99%
“…This technique estimates the line of best fit which minimises the sum of squares of the deviations between the observed and the estimated values of the dependent variable, given that a linear relationship exists [8,12,32].…”
Section: Resultsmentioning
confidence: 99%
“…Within these areas, experiments to determine the analyte's concentration within a sample typically involve the use of a calibration curve [8,9,10,11]. Calibration curves are produced by measuring an instrument response according to a range of standards with known analyte concentrations.…”
Section: Introductionmentioning
confidence: 99%
“…Desde a ultima década, contudo, o uso de métodos espectroscópicos aliados à calibração multivariada tem-se mostrado um meio rápido e eficiente para a determinação de diversos tipos de substâncias em amostras farmacêuticas. Algumas publicações mostram o uso de téc-nicas espectrofotométricas e eletroquímicas em conjunto com mé-todos de calibração multivariada para a determinação de vitaminas [6][7][8][9][10] . Em muitos trabalhos, amostras sintéticas foram utilizadas na fase de calibração.…”
Section: Introductionunclassified