2026-04-19T17:04:13Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/107742025-07-30T00:05:31Zcom_10259_4249com_10259_5086com_10259_2604col_10259_4250
Castro Reigía, David
2020c09d-babf-44bd-ba2a-79fa68eb2eb6
600
Sierra, M.
6d0c486e-9240-46bb-8ad5-ed9e938c2b8f
García, I.
d8cce105-d1fd-47b3-979c-40bbe53b2ea2
Sanllorente Méndez, Silvia
522
600
0000-0001-8693-8806
Sarabia Peinador, Luis Antonio
534
600
0000-0002-5936-7929
Ortiz Fernández, Mª Cruz
406
600
0000-0002-4751-8929
2025-07-29T11:44:42Z
2025-07-29T11:44:42Z
2025-08
0886-9383
https://hdl.handle.net/10259/10774
10.1002/cem.70054
1099-128X
The development of NIR instruments and/or their modification to adapt the measurements for each problem and improve its performance are crucial steps for the optimal measurement procedures. In this work, it is presented the development of an accessory for cuvettes designed to have the possibility to collect NIR spectra in transflectance mode. In that sense, it is aimed to investigate how different factors in the measurement procedure using this accessory influence both the NIR spectra and the subsequent calibration models for detecting adulterations with sunflower oil in olive oil. The purpose is to show how a proof of concept can be developed using chemometric tools. For that, every measurement condition influencing the spectra was evaluated with ASCA, visualizing how the use of different NIR devices, the sensor arrangement regarding the cuvette, the activation of the internal compensation system of temperature of the sensor, or the concentration levels of the adulterant affected the resulting spectra. Afterwards, every possible combination of the factors was explored through eight different PLS calibration models and their validation to examine if the factors also influenced the calibration models built for quantifying the sunflower oil present in the olive oil. It was found that not only were all factors significant regarding NIR measurements but also when quantifying adulterants. The best results of this proof of concept were obtained by arranging the sensor in a horizontal disposition regarding the cuvette and activating the internal compensation system of temperature. The capability of detection of the method for the particular oils used was 1.4% for probabilities of false positive and false negative of 0.05.
application/pdf
eng
Wiley
Journal of Chemometrics. 2025, V. 39, n. 8, e70054
https://doi.org/10.1002/cem.70054
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
Adulteration
ASCA
NIR spectroscopy
Olive oil
PLS
Quimiometría
Chemometrics
Influence of a Measurement Procedure and Evaluation of Transflectance Sensing System for Quantifying Sunflower Oil Adulterations in Olive Oil. A Proof of Concept
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Journal of Chemometrics
39
8
THUMBNAIL
Castro-jc_2025.pdf.jpg
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10259/10774
oai:riubu.ubu.es:10259/10774
2025-07-30 02:05:31.94
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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