{"id":38454,"date":"2024-03-26T16:42:00","date_gmt":"2024-03-26T16:42:00","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&#038;p=38454"},"modified":"2026-01-26T20:44:40","modified_gmt":"2026-01-26T20:44:40","slug":"praziser-massenfluss-ermoglicht-neue-verschmutzungsmessende-technologien","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/","title":{"rendered":"Entwicklung neuartiger Technologien zur Verschmutzungserkennung mit Hilfe pr\u00e4ziser Massendurchflussregelung"},"content":{"rendered":"\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_heading title=&#8221;Developing novel pollution sensing technologies using precise mass flow control&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][\/et_pb_heading][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]The growth of the IoT (Internet of Things) is driving the need for smaller and more ubiquitous sensors. Normally, one thinks of optical or electrical sensors in this context. This type of measurement has typically been in the province of automotive and process control industries and is largely unavailable at the consumer level.\n\nPresently, IoT is creating a need for low-power, low-cost gas sensors that can be utilized for consumer-level applications. There are potential applications in the areas of:\n<ul>\n\t<li><span style=\"color: #000000;\">Household air-quality monitoring<\/span><\/li>\n\t<li><span style=\"color: #000000;\">Personalized healthcare<\/span><\/li>\n\t<li><span style=\"color: #000000;\">Breath analysis<\/span><\/li>\n\t<li><span style=\"color: #000000;\">A multitude of other applications<\/span><\/li>\n<\/ul>\nHowever, existing sensors that could be used for these applications are generally not suitable due to their large size, high power demands, and high cost.\n\nThere are a number of competing technologies focused on providing sensors for this market; one of the most promising sensor types is the field-effect transistor (FET). In a recently published paper, Fahad et. al. describe a novel FET that promises to meet many of the requirements where existing sensors fall short. Many of the experiments described in the paper require the highly accurate mass flow of measured gases.<sup>1<\/sup>\n<h2>Challenge: Detecting sulfur\/nitrogen dioxide air pollutants<\/h2>\nFahad et. al. demonstrate a novel chemically-sensitive FET capable of detecting sulfur dioxide (H<sub>2<\/sub>S) as low as 10 ppb. This invisible gas readily forms toxic compounds such as sulfuric acid and sulfate particles, making it quite dangerous especially to asthmatics. The US has made great strides in reducing sulfur emissions from power plants. However, in excess of 500 million tons were still produced in 2011 from powerplants and other sources.<sup> 2<\/sup>\n\nThe same series of experiments showed the detection of nitrogen dioxide (NO<sub>2<\/sub>) down to 1 ppm levels. This gas is another common air pollutant that can impact personal health. NO<sub>2<\/sub> reacts with other airborne substances to form particulate matter and ozone, both of which have significant negative effects on respiratory health.\n\nThe US EPA has recently tightened standards for NO<sub>2<\/sub>. These newer standards will require increased monitoring of ambient air levels to ensure compliance. Implementing these new standards will, in turn, require increased training and proper calibration of equipment used to ensure the required accuracy. Alicat makes a range of products specifically designed to help state and local environmental analysts and technicians ensure the needed levels of accuracy.<sup>3<\/sup>\n<h2>Solution: Accurate mass flow control<\/h2>\nThese experiments demonstrate the efficacy of the novel low-power FET sensor. The experiments were conducted using known gasses from commercial suppliers. Control of the gas input was critical to making accurate assessments of the FET function. Alicat <a href=\"https:\/\/www.alicat.com\/products\/gas-flow\/mass-flow-controller\/\">mass flow controllers<\/a> were used to ensure the accuracy of these measurements by precisely regulating the input flow of the gas mixture from 1-100 SCCM.\n\nAs scientists and engineers continue to develop novel sensors to enable IoT technologies, precise, reliable mass flow will continue to be required. At Alicat, increasing the pace of scientific innovation is our greatest passion. All of our instruments are custom-built to the needs of your science.[\/et_pb_text][et_pb_accordion _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;][et_pb_accordion_item title=&#8221;References&#8221; open=&#8221;on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; toggle_font=&#8221;|700|||||||&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;]<span>\u00a01) <\/span>\u201c<a href=\"https:\/\/advances.sciencemag.org\/content\/3\/3\/e1602557\">Room temperature multiplexed gas sensing using chemical-sensitive 3.5-nm-thin silicon transistors<\/a>\u201d Fahad HM, Shiraki H, Amani M, Zhang C, Hebbar VS, Gao W, Ota H, Hettick M, Kiriya D, Chen YZ, Chueh YL, Javey A. <cite>Science Advances\u00a0<\/cite> 24 Mar 2017: Vol. 3, no. 3, e1602557 DOI: 10.1126\/sciadv.1602557\n\n2)<span> &#8220;<\/span><a href=\"https:\/\/www.epa.gov\/roe\/\">Sulfur Dioxide Emissions.<\/a><span>&#8221; <\/span>Sulfur Dioxide Emissions, US EPA, 2014, www.epa.gov\/roe\/\n\n3) \u201cAmbient Air Monitoring.\u201d Alicat Scientific[\/et_pb_accordion_item][\/et_pb_accordion][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"featured_media":46458,"parent":0,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"1920","content-type":"","_searchwp_excluded":""},"categories":[],"class_list":["post-38454","support","type-support","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Developing Novel Pollution Sensing Technologies Using Precise Mass Flow Control - Alicat Scientific<\/title>\n<meta name=\"description\" content=\"Learn how Alicat developed novel pollution sensing technologies using precise mass flow control\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alicat.com\/de\/unterstutzung\/praziser-massenfluss-ermoglicht-neue-verschmutzungsmessende-technologien\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Developing Novel Pollution Sensing Technologies Using Precise Mass Flow Control\" \/>\n<meta property=\"og:description\" content=\"Learn how Alicat developed novel pollution sensing technologies using precise mass flow control\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alicat.com\/de\/unterstutzung\/praziser-massenfluss-ermoglicht-neue-verschmutzungsmessende-technologien\/\" \/>\n<meta property=\"og:site_name\" content=\"Alicat Scientific\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/alicatscientific\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-26T20:44:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alicat.com\/wp-content\/uploads\/2026\/01\/featured-alicat.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/\",\"url\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/\",\"name\":\"Developing Novel Pollution Sensing Technologies Using Precise Mass Flow Control - Alicat Scientific\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.alicat.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.alicat.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/featured-alicat.png\",\"datePublished\":\"2024-03-26T16:42:00+00:00\",\"dateModified\":\"2026-01-26T20:44:40+00:00\",\"description\":\"Learn how Alicat developed novel pollution sensing technologies using precise mass flow control\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.alicat.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/featured-alicat.png\",\"contentUrl\":\"https:\\\/\\\/www.alicat.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/featured-alicat.png\",\"width\":1200,\"height\":630,\"caption\":\"Photo of an Alicat instrument with the Alicat logo behind it\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/precise-mass-flow-enables-novel-pollution-sensing-technologies\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.alicat.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Developing Novel Pollution Sensing Technologies Using Precise Mass Flow Control\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/#website\",\"url\":\"https:\\\/\\\/www.alicat.com\\\/\",\"name\":\"Alicat Scientific\",\"description\":\"Alicat Scientific | Fastest Flow Measurement Possible\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.alicat.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.alicat.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"de\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/#organization\",\"name\":\"Alicat Scientific\",\"alternateName\":\"Alicat\",\"url\":\"https:\\\/\\\/www.alicat.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Alicat Scientific\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alicat.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/alicatscientific\\\/\",\"https:\\\/\\\/linkedin.com\\\/company\\\/alicat-scientific-inc\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCPPX4sBOO2eEu65Zn-EfwCw\"],\"email\":\"info@alicat.com\",\"telephone\":\"+18882906060\",\"legalName\":\"Alicat Scientific, Inc.\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Entwicklung neuartiger Technologien zur Verschmutzungsmessung mit pr\u00e4ziser Massendurchflusskontrolle - Alicat Scientific","description":"Erfahren Sie, wie Alicat neue Technologien zur Erkennung von Verschmutzungen mit Hilfe pr\u00e4ziser Massendurchflusskontrolle entwickelt hat","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.alicat.com\/de\/unterstutzung\/praziser-massenfluss-ermoglicht-neue-verschmutzungsmessende-technologien\/","og_locale":"de_DE","og_type":"article","og_title":"Developing Novel Pollution Sensing Technologies Using Precise Mass Flow Control","og_description":"Learn how Alicat developed novel pollution sensing technologies using precise mass flow control","og_url":"https:\/\/www.alicat.com\/de\/unterstutzung\/praziser-massenfluss-ermoglicht-neue-verschmutzungsmessende-technologien\/","og_site_name":"Alicat Scientific","article_publisher":"https:\/\/www.facebook.com\/alicatscientific\/","article_modified_time":"2026-01-26T20:44:40+00:00","og_image":[{"width":1200,"height":630,"url":"https:\/\/www.alicat.com\/wp-content\/uploads\/2026\/01\/featured-alicat.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3\u00a0Minuten"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/","url":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/","name":"Entwicklung neuartiger Technologien zur Verschmutzungsmessung mit pr\u00e4ziser Massendurchflusskontrolle - Alicat Scientific","isPartOf":{"@id":"https:\/\/www.alicat.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/#primaryimage"},"image":{"@id":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/#primaryimage"},"thumbnailUrl":"https:\/\/www.alicat.com\/wp-content\/uploads\/2026\/01\/featured-alicat.png","datePublished":"2024-03-26T16:42:00+00:00","dateModified":"2026-01-26T20:44:40+00:00","description":"Erfahren Sie, wie Alicat neue Technologien zur Erkennung von Verschmutzungen mit Hilfe pr\u00e4ziser Massendurchflusskontrolle entwickelt hat","breadcrumb":{"@id":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/"]}]},{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/#primaryimage","url":"https:\/\/www.alicat.com\/wp-content\/uploads\/2026\/01\/featured-alicat.png","contentUrl":"https:\/\/www.alicat.com\/wp-content\/uploads\/2026\/01\/featured-alicat.png","width":1200,"height":630,"caption":"Photo of an Alicat instrument with the Alicat logo behind it"},{"@type":"BreadcrumbList","@id":"https:\/\/www.alicat.com\/support\/precise-mass-flow-enables-novel-pollution-sensing-technologies\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.alicat.com\/"},{"@type":"ListItem","position":2,"name":"Developing Novel Pollution Sensing Technologies Using Precise Mass Flow Control"}]},{"@type":"WebSite","@id":"https:\/\/www.alicat.com\/#website","url":"https:\/\/www.alicat.com\/","name":"Alicat Scientific","description":"Alicat Scientific | Schnellstm\u00f6gliche Durchflussmessung","publisher":{"@id":"https:\/\/www.alicat.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.alicat.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"de"},{"@type":"Organization","@id":"https:\/\/www.alicat.com\/#organization","name":"Alicat Scientific","alternateName":"Alicat","url":"https:\/\/www.alicat.com\/","logo":{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/www.alicat.com\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":"Alicat Scientific"},"image":{"@id":"https:\/\/www.alicat.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/alicatscientific\/","https:\/\/linkedin.com\/company\/alicat-scientific-inc","https:\/\/www.youtube.com\/channel\/UCPPX4sBOO2eEu65Zn-EfwCw"],"email":"info@alicat.com","telephone":"+18882906060","legalName":"Alicat Scientific, Inc."}]}},"_links":{"self":[{"href":"https:\/\/www.alicat.com\/de\/wp-json\/wp\/v2\/support\/38454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alicat.com\/de\/wp-json\/wp\/v2\/support"}],"about":[{"href":"https:\/\/www.alicat.com\/de\/wp-json\/wp\/v2\/types\/support"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alicat.com\/de\/wp-json\/wp\/v2\/media\/46458"}],"wp:attachment":[{"href":"https:\/\/www.alicat.com\/de\/wp-json\/wp\/v2\/media?parent=38454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alicat.com\/de\/wp-json\/wp\/v2\/categories?post=38454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}