Comparison of Chemometric Algorithms for Multicomponent Analyses and Signal Processing: An Example from 4-(2- Pyridylazo) Resorcinol-Metal Colored Complexes

Dumancas, Gerard G.; Bello, Ghalib; Hughes, Jeff G.; Diss, Michael

doi:10.2174/2210686305666150817225812

Cited by 4 publications

(2 citation statements)

References 42 publications

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“…The ultimate goal of PLS is to develop predictive models that will utilize the ATR-FTIR absorbance spectra to simultaneously predict the concentrations of corn, cane, beet, and rice syrups without any need for analytical separations. It is a powerful multivariate statistical method with a wide multitude of successes in many areas [18][19][20][21]. Mathematically, PLS involves the decomposition of A (absorbance) and C (concentration) as follows:…”

Section: Methodsmentioning

confidence: 99%

Comparison of Various Signal Processing Techniques and Spectral Regions for the Direct Determination of Syrup Adulterants in Honey Using Fourier Transform Infrared Spectroscopy and Chemometrics

et al. 2022

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Honey consumption has become increasingly popular worldwide. However, the increase in demand for honey has also caused an increase in its adulteration, a deliberate fraud which involves adding of other substances to pure honey for economic purposes. This process not only lowers the quality of honey, but also has potential health risks, including high blood sugar, increased risk of diabetes, and weight gain. Herein, we develop an easy-to-use and direct method of quantifying corn, cane, beet, and rice syrup adulterants in honey using Fourier transform infrared spectroscopy and chemometrics. Various signal processing techniques, including derivatives, moving average, binning, Savitzky–Golay, and standard normal variate using the entire spectral region (3996–650 cm−1) and specific spectral region (1501–799 cm−1), were compared. Optimum results were obtained using first derivative signal processing for both the entire and specific spectral regions. The first derivative signal processing technique garnered the most optimum results using the specific spectral range (1501–799 cm−1) (RMSECVaverage = 0.021, RMSEPaverage = 0.014, R2average = 0.859) across all syrup adulterants. An exploratory analysis to assess the utility of this specific spectral region in pattern recognition of samples based on their adulterant content show that this region is effective in discriminating samples according to the presence or absence of honey syrup adulterants.

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Section: Methodsmentioning

confidence: 99%

Comparison of Various Signal Processing Techniques and Spectral Regions for the Direct Determination of Syrup Adulterants in Honey Using Fourier Transform Infrared Spectroscopy and Chemometrics

et al. 2022

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“…It is also possible to see the addition of some spectral variations due to the impurities. If those spectral changes are linear and related to a measurable parameter, they can be included in the CLS calibrations 11.…”

Section: Methodsmentioning

confidence: 99%

Individual Dye Removal Efficiencies in a Ternary Dye Mixture by Electrocoagulation

2022

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Electrocoagulation (EC) of a synthetic ternary dye mixture was investigated using sacrificial iron electrodes. Erionyl Red (ER), Isolan Bordeaux (IB), and Remazol Red (RR) textile dyes were used for preparing the ternary solution. Different operational parameters, including initial dye concentrations, salt amount, current density, EC time, and pH, were analyzed to optimize removal efficiency and energy consumption conditions. After EC treatment, the individual remaining dye concentrations were calculated by applying classical least squares (CLS). The fastest removed dye was RR and the obtained efficiency was the highest as compared to the other two dyes. The energy consumption was also investigated.

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Spectroscopic Methods for Evaluating Nutraceuticals and Nano-Nutraceutical Formulations

Songca

2024

Handbook of Nutraceuticals

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Comparison of Chemometric Algorithms for Multicomponent Analyses and Signal Processing: An Example from 4-(2- Pyridylazo) Resorcinol-Metal Colored Complexes

Cited by 4 publications

References 42 publications

Comparison of Various Signal Processing Techniques and Spectral Regions for the Direct Determination of Syrup Adulterants in Honey Using Fourier Transform Infrared Spectroscopy and Chemometrics

Comparison of Various Signal Processing Techniques and Spectral Regions for the Direct Determination of Syrup Adulterants in Honey Using Fourier Transform Infrared Spectroscopy and Chemometrics

Individual Dye Removal Efficiencies in a Ternary Dye Mixture by Electrocoagulation

Spectroscopic Methods for Evaluating Nutraceuticals and Nano-Nutraceutical Formulations

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