{"id":2472,"date":"2022-12-16T10:03:18","date_gmt":"2022-12-16T09:03:18","guid":{"rendered":"http:\/\/polysense.poliba.it\/?p=2472"},"modified":"2022-12-16T10:03:18","modified_gmt":"2022-12-16T09:03:18","slug":"new-publication-on-photoacoustics-journal-13","status":"publish","type":"post","link":"https:\/\/polysense.poliba.it\/index.php\/2022\/12\/16\/new-publication-on-photoacoustics-journal-13\/","title":{"rendered":"New Publication on Photoacoustics Journal"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The PolySense team has just published\u00a0 a new article on Photoacoustics Journal Elsevier (IF 9.94)\u00a0 reporting on a on a Near-IR quartz-enhanced photoacoustic sensor (QEPAS) for H<sub>2<\/sub>S leaks detection in matrixes containing up to 1 % of methane (CH<sub>4<\/sub>).   An investigation of the influence of CH<sub>4<\/sub>\u00a0on H<sub>2<\/sub>S relaxation and photoacoustic generation was proposed in this work and the sensor performances were carefully assessed with respect to CH<sub>4<\/sub>\u00a0content in the mixture. We demonstrated the high selectivity, with no cross talk between H<sub>2<\/sub>S, H<sub>2<\/sub>O and CH<sub>4<\/sub>\u00a0absorption lines, high sensitivity, and fast response time of the developed sensor, achieving a minimum detection limit (MDL) of 2.5\u202fppm for H<sub>2<\/sub>S with 2\u202fs lock-in integration time. The employed 2.6\u202f\u00b5m laser allowed us to employ the sensor also for CH<sub>4 <\/sub>detection, achieving an MDL of 85\u202fppm. The realized QEPAS sensor lends itself to the development of a portable and compact device for industrial monitoring. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following link provides access to the article:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/151_H2S-in-CH4_-photoacoustics-2023.pdf\">http:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/151_H2S-in-CH4_-photoacoustics-2023.pdf<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"779\" src=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/h2s-in-ch4-1024x779.jpg\" alt=\"\" class=\"wp-image-2474\" srcset=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/h2s-in-ch4-1024x779.jpg 1024w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/h2s-in-ch4-300x228.jpg 300w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/h2s-in-ch4-768x584.jpg 768w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2022\/12\/h2s-in-ch4.jpg 1860w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The PolySense team has just published\u00a0 a new article on Photoacoustics Journal Elsevier (IF 9.94)\u00a0 reporting on a on a Near-IR quartz-enhanced photoacoustic sensor (QEPAS) for H2S leaks detection in matrixes containing up to 1 % of methane (CH4). An investigation of the influence of CH4\u00a0on H2S relaxation and photoacoustic generation was proposed in this <a href=\"https:\/\/polysense.poliba.it\/index.php\/2022\/12\/16\/new-publication-on-photoacoustics-journal-13\/\" rel=\"nofollow\"><span class=\"sr-only\">Leggi di pi\u00f9New Publication on Photoacoustics Journal<\/span>[&hellip;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":973,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-senza-categoria"],"_links":{"self":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/2472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/comments?post=2472"}],"version-history":[{"count":1,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/2472\/revisions"}],"predecessor-version":[{"id":2475,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/2472\/revisions\/2475"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media\/973"}],"wp:attachment":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media?parent=2472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/categories?post=2472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/tags?post=2472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}