2024-03-29T09:27:26Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/70842022-10-06T00:05:33Zcom_10259.4_2519com_10259.4_2512com_10259.4_106com_10259_2604com_10259_3592com_10259_3591com_10259_5363com_10259_5086com_10259_4313col_10259_6199col_10259_3930col_10259_5364col_10259_4314
Smart sensory polymer for straightforward Zn(II) detection in pet food samples
Guirado Moreno, José Carlos
González Ceballos, Lara
Carreira Barral, Israel
Ibeas Cortes, Saturnino
Fernández Muiño, Miguel Ángel
Sancho Ortiz, María Teresa
García Pérez, José Miguel
Vallejos Calzada, Saúl
Zinc detection
Zinc in food
Sensory polymers
Fluorescent probes
RGB parameters
Química orgánica
Alimentos
Chemistry, Organic
Food
We report on an innovative method to measure the Zn(II) concentration in commercial pet food samples, both wet and dry food. It is based on a colorimetric sensory polymer prepared from commercial monomers and 0.5 % of a synthetic monomer having a quinoline sensory core (N-(8-(2-azidoacetamido)quinolin-5-yl)methacrylamide). We obtained the sensory polymer as crosslinked films by thermally initiated bulk radical polymerization of the monomers of 100 μm thickness, which we punched into Ø6 mm sensory discs. The immersion of the discs in water solutions containing Zn(II) turned the fluorescence on, allowing for the titration of this cation using the G parameter of a digital picture taken to the discs. The limits of detection and quantification were 29 and 87 µg/L, respectively. Furthermore, we measured the concentration of Zn(II) even in the presence of other cations, detecting no significant interferences. Thus, in a further step, we obtained the concentration of Zn(II) from 15 commercial pet food samples, ranging from 19 to 198 mg/kg, following a simple extraction procedure and contacting the extractant with our sensory discs. These results were contrasted with that obtained by ICP-MS as a reference method.
Spanish Agencia Estatal de Investigación (State Research Agency) (grant PID2020-113264RB-I00/AEI/10.13039/501100011033).
2022-10-05T11:04:24Z
2022-10-05T11:04:24Z
2023-01
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
1386-1425
http://hdl.handle.net/10259/7084
10.1016/j.saa.2022.121820
eng
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2023, V. 284, 121820
https://doi.org/10.1016/j.saa.2022.121820
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113264RB-I00/ES/DISEÑO, SINTESIS Y CARACTERIZACION DE POLIMEROS INTELIGENTES. APLICACION DE SENSORES QUIMICOS POLIMERICOS EN CONTROL Y SEGURIDAD ALIMENTARIA Y EN EL AMBITO SANITARIO.
Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
application/pdf
Elsevier
https://riubu.ubu.es/bitstream/10259/7084/4/Guirado-sapambs_2023.pdf.jpg
Hispana
TEXT
http://creativecommons.org/licenses/by/4.0/
RIUBU. Repositorio Institucional de la Universidad de Burgos
http://hdl.handle.net/10259/7084