{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T05:22:54Z","timestamp":1783660974826,"version":"3.55.0"},"reference-count":35,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2019,3,6]],"date-time":"2019-03-06T00:00:00Z","timestamp":1551830400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002261","name":"Russian Foundation for Basic Research","doi-asserted-by":"publisher","award":["18-29-24128"],"award-info":[{"award-number":["18-29-24128"]}],"id":[{"id":"10.13039\/501100002261","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, we describe a technique for the qualitative and quantitative analysis of such gas mixtures as \u201chydrogen sulfide in air\u201d and \u201cmethane in air\u201d using temperature modulation of a single metal oxide sensor. Using regression analysis in the principal components plane (PC1, PC2), we performed a selective determination of analytes on the minimum set of their concentrations in the training set, which is essential for solving practical problems. An important feature of this work is the difference in test gas concentrations from their concentrations in the training set. For the qualitative analysis of gas mixtures in a wide range of concentrations, we have developed an improved method for processing arrays of multidimensional data. For this improvement, we form a Mahalanobis neighborhood for polynomial regression lines constructed from the projection of training samples for each analyte on the (PC1, PC2) plane. Using the temperature modulation mode for the metal oxide sensor allowed us to increase its response when determining hydrogen sulfide by two to four orders of magnitude compared with the constant temperature mode.<\/jats:p>","DOI":"10.3390\/s19051135","type":"journal-article","created":{"date-parts":[[2019,3,7]],"date-time":"2019-03-07T10:52:22Z","timestamp":1551955942000},"page":"1135","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Selective Detection of Hydrogen Sulfide and Methane by a Single MOX-Sensor"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1214-2730","authenticated-orcid":false,"given":"Alexey","family":"Shaposhnik","sequence":"first","affiliation":[{"name":"Department of Chemistry, Voronezh State Agrarian University, Voronezh 394087, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1896-7530","authenticated-orcid":false,"given":"Pavel","family":"Moskalev","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Physics, Voronezh State Agrarian University, Voronezh 394087, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elena","family":"Sizask","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Voronezh State Agrarian University, Voronezh 394087, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7635-8162","authenticated-orcid":false,"given":"Stanislav","family":"Ryabtsev","sequence":"additional","affiliation":[{"name":"Research Institute of Physics, Voronezh State University, Voronezh 394006, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7416-1638","authenticated-orcid":false,"given":"Alexey","family":"Vasiliev","sequence":"additional","affiliation":[{"name":"NRC Kurchatov Institute, Moscow 123182, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/0250-6874(83)85034-3","article-title":"Effects of additives on semiconductor gas sensors","volume":"4","author":"Yamazoe","year":"1983","journal-title":"Sens. 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