Implementación y evaluación de una nariz electrónica para la detección de alcoholes lineales

Paredes-Doig, Ana Lucía; Kou, María del Rosario Sun; Picasso, Gino; Doig-Camino, Elizabeth; Comina, Germán

doi:10.15446/rev.colomb.quim.v45n2.60393

Cited by 3 publications

(2 citation statements)

References 46 publications

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“…42 paper, followed by washing it with 0.005 M HCl and then with water in order to eliminate the chloride ions. e solid sample was dried at 80°C for 24 h. Subsequently, it was calcined at 400°C for 1 h. is procedure has been used in previous researches [2,3].…”

Section: Sncl 2 Solutionmentioning

confidence: 99%

Gas Sensors Modified with Zeolite Y for Assessing Wine Aroma Compounds

Paredes-Doig

Cárcamo

Cotillo

et al. 2019

Journal of Chemistry

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The present work develops a MOS-based e-nose with sensors modified with zeolite Y. For this purpose, the following SnO2 doped with Pd and/or Pt have been prepared: M1 ((0.25 Pd/0.75 Pt)/SnO2), M2 ((0.50 Pd/0.50 Pt)/SnO2), M3 ((0.75 Pd/0.25 Pt)/SnO2), Pd/SnO2, and Pt/SnO2, at the total concentrations of the noble metals of 0.1% and 0.2% for use in gas sensors and be part of the electronic nose. Then, the sensors were assembled with the oxides using the screen printing method. Different electronic noses of four sensors were prepared by combining tin oxides doped with palladium and/or platinum and zeolite Y. The physicochemical characterization of oxides using FRX, FTIR, sorption of N2, and RAMAN has been performed. Measurements for the detection of wine volatile compounds such as ethanol, methanol, 1-phenyl ethanol, propionic acid, and acetic acid were carried out with these sensors located in a gas chamber and using a program that includes the Labview software, which serves to automate the sensing process. It was found that the sensors modified with zeolite were the ones that in general had higher detections of volatile compounds and PCAs showed positive correlations only for ethanol and the mixture of ethanol at 12% and methanol at 3%. This is related to better detection of these sensors.

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Section: Sncl 2 Solutionmentioning

confidence: 99%

Gas Sensors Modified with Zeolite Y for Assessing Wine Aroma Compounds

Paredes-Doig

Cárcamo

Cotillo

et al. 2019

Journal of Chemistry

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“…The E-nose's main hardware parts are the odor handling and delivery systems, the sensor assembly, and the interface circuit. The E-nose software parts are the pre-processing and pattern recognition (PR) algorithms (18). They have a classifier that discriminates the odor classes to reduce the dimensionality of the data; in some studies, the genetic algorithm (GA) has been used to find the best combination of characteristics.…”

Section: Componentsmentioning

confidence: 99%

Electronic Nose, Tongue and Eye: Their Usefulness for the Food Industry

Ordoñez-Araque

Rodríguez-Villacres

Urresto-Villegas

2020

Vitae

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Background: The electronic nose, tongue, and eye are futuristic technologies that have been used for many years; they have been gaining market in different types of industries and can increasingly be found in the food area; their function is to determine sensory characteristics (smell, aroma, and flavor) and objective visuals, without the subjectivity that can be represented by sensory analysis by people (the study that can complement the analysis of machines, without being exclusive). Objectives: Find the main generalities of these mechanisms, their sensors, software, mechanism of action, and applications within the food industry. Methods: A search was carried out in the main databases of indexed articles, with terms that allowed collecting the necessary information, and 89 articles were used that met different inclusion criteria. Results: The main outcomes were to understand the operation of each of these technologies, what their main components are, and how they can be linked in the beer, wine, oil, fruit, vegetable, dairy, etc. industry to determine their quality, safety, and fraud. Conclusions: The use of electronic nose, tongue, and eye is found in more food industries every day. Its technology continues to evolve; the future of sensory analysis will undoubtedly apply these mechanisms due to the reliability, speed, and reproducibility of the results.

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Desarrollo de un sistema multisensorial embebido para detección de fallas incipientes en transformadores eléctricos

Trujillo Barajas,

Gualdrón Guerrero,

Peláez Carrillo

2023

RCTA

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El trabajo de investigación se basó en la elaboración de un sistema embebido capaz de detectar gases volátiles incipientes presentes en los transformadores eléctricos. Para realizar la detección de cada uno de los gases que allí se localizan, se aplicó ingeniería de detalle para la toma y adquisición de datos provenientes del sistema multisensorial, esto por medio de cada una de las pruebas que se debe aplicar a los sensores que se utilizaron para la toma de muestras, luego de haber realizado este tipo de ingeniería, se realizó un algoritmo para clasificar los datos adquiridos por medio del sistema multisensorial anteriormente planteado y esto con el fin de saber qué tipo de gas se detectó para la respectiva clasificación de los mismos, una vez logrado cada uno de los pasos anteriormente formulados se implementó un sistema inalámbrico capaz de dar la información interna que se está presentado en tiempo real en el transformador con el fin de hacer un monitoreo constante para prevenir los daños futuros, y con esto implementar sistemas de mantenimiento bien sean preventivos o predictivos y así evitarle costos a la empresa encargada de dar manteniendo y buen funcionamiento a estos elementos de distribución eléctrica.

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Implementación y evaluación de una nariz electrónica para la detección de alcoholes lineales

Cited by 3 publications

References 46 publications

Gas Sensors Modified with Zeolite Y for Assessing Wine Aroma Compounds

Gas Sensors Modified with Zeolite Y for Assessing Wine Aroma Compounds

Electronic Nose, Tongue and Eye: Their Usefulness for the Food Industry

Desarrollo de un sistema multisensorial embebido para detección de fallas incipientes en transformadores eléctricos

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