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Sensors (Basel)

Title:		Scotch Tape Optical Vapor Sensor for Ethanol-Methanol Mixtures
Author(s):		Angulo Barrios C;
Address:		"Institute for Optoelectronic Systems and Microtechnology (ISOM), ETSI Telecomunicacion, Universidad Politecnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain. Department of Photonics and Bioengineering (TFB), ETSI Telecomunicacion, Universidad Politecnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain"
Journal Title:		Sensors (Basel)
Year:		2019
Volume:		20191206
Issue:		24
Page Number:		-
DOI:		10.3390/s19245381
ISSN/ISBN:		1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:		"A simple optical vapor sensor based on conventional Scotch adhesive tape, for analyzing ethanol-methanol mixtures, is proposed and demonstrated. The sensing signal relies on the variation of optical power transmitted through the tape, resulting from the response of the adhesive material to vapor sorption. The optical sensor exhibits high selectivity for ethanol vapor over methanol vapor. When exposed to vapors from ethanol-methanol liquid mixtures, the sensor shows a linear detection range of 0-100 vol%, and detection limits of 8.8 vol% ethanol and 17.6 vol% methanol. Repeatability, reproducibility, reversibility, and sensitivity to other volatile organic compounds are also studied"
Keywords:		Scotch tape ethanol methanol optical sensor scattering vapor sensor;
Notes:		"PubMed-not-MEDLINEAngulo Barrios, Carlos eng TEC 2017-84846-R/Ministerio de Ciencia, Innovacion y Universidades/ Switzerland 2019/12/11 Sensors (Basel). 2019 Dec 6; 19(24):5381. doi: 10.3390/s19245381"