{"id":3444,"date":"2025-02-23T04:55:01","date_gmt":"2025-02-23T03:55:01","guid":{"rendered":"http:\/\/polysense.poliba.it\/?p=3444"},"modified":"2025-11-25T12:29:00","modified_gmt":"2025-11-25T11:29:00","slug":"new-publication-on-sensors-and-actuators-b-chemical-journal-2","status":"publish","type":"post","link":"https:\/\/polysense.poliba.it\/index.php\/2025\/02\/23\/new-publication-on-sensors-and-actuators-b-chemical-journal-2\/","title":{"rendered":"New Publication on Sensors and Actuators B Chemical Journal"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The PolySense team has just published\u00a0 a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 8.0)\u00a0 reporting on  a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for ammonia impurities detection in hydrogen. A quantum cascade laser with a central emission wavelength of 9.062 \u03bcm was used to excite the NH<sub>3<\/sub>\u00a0absorption line at 1103.44\u202fcm<sup>\u22121<\/sup>, with a linestrength of 1.51\ua78f10<sup>\u221219<\/sup> cm\/molecule. A custom-made spectrophone was implemented in a QEPAS sensor, achieving a minimum detection limit of 95 ppb with a lock-in integration time of 0.1\u202fs. Furthermore, the Allan-Werle deviation analysis returned a detection limit as low as 1.5 ppb when for an integration time of 30\u202fs. <\/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\/2025\/02\/Detection-of-NH3-impurities-in-H2-_SnB-2025.pdf\">http:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/02\/Detection-of-NH3-impurities-in-H2-_SnB-2025.pdf<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"759\" src=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/02\/Abstract-NH3-in-H2-1024x759.png\" alt=\"\" class=\"wp-image-3440\" srcset=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/02\/Abstract-NH3-in-H2-1024x759.png 1024w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/02\/Abstract-NH3-in-H2-300x222.png 300w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/02\/Abstract-NH3-in-H2-768x569.png 768w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2025\/02\/Abstract-NH3-in-H2.png 2037w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The PolySense team has just published\u00a0 a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 8.0)\u00a0 reporting on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for ammonia impurities detection in hydrogen. A quantum cascade laser with a central emission wavelength of 9.062 \u03bcm was used to excite the NH3\u00a0absorption line at 1103.44\u202fcm\u22121, with <a href=\"https:\/\/polysense.poliba.it\/index.php\/2025\/02\/23\/new-publication-on-sensors-and-actuators-b-chemical-journal-2\/\" rel=\"nofollow\"><span class=\"sr-only\">Leggi di pi\u00f9New Publication on Sensors and Actuators B Chemical Journal<\/span>[&hellip;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":425,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3444","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\/3444","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/comments?post=3444"}],"version-history":[{"count":3,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3444\/revisions"}],"predecessor-version":[{"id":3698,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3444\/revisions\/3698"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media\/425"}],"wp:attachment":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media?parent=3444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/categories?post=3444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/tags?post=3444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}