{"id":9040,"date":"2021-09-07T08:40:28","date_gmt":"2021-09-07T08:40:28","guid":{"rendered":"https:\/\/nicoletcz.cz\/ozone-analysis-by-ft-ir-infrared-spectroscopy\/"},"modified":"2021-09-07T08:50:00","modified_gmt":"2021-09-07T08:50:00","slug":"ozone-analysis-by-ft-ir-infrared-spectroscopy","status":"publish","type":"post","link":"https:\/\/nicoletcz.cz\/en\/ozone-analysis-by-ft-ir-infrared-spectroscopy\/","title":{"rendered":"Ozone analysis by FT-IR (infrared spectroscopy)"},"content":{"rendered":"<p>Scientists began to notice the existence of ozone as early as 1775, when in connection with the observation of lightning or the study of electrical equipment, they noticed its presence as a characteristic odor, which we know well from the vicinity of copiers or charming plasma lamps.<\/p>\n<p>Ozone, as a chemical, was discovered by the Swiss-German physicist <strong>Christian Friedrich Sch\u00f6nbein<\/strong> (1799 &#8211; 1868) in 1840 during experiments with the slow oxidation of white phosphorus in the electrolysis of water. It was discovered as a by-product of electric charge activity during electrolysis. <strong>Sch\u00f6nbein (in addition to ozone, he also discovered nitrocellulose or guncottom)<\/strong> noticed its presence in the air after storms, and therefore named it <em>ozone<\/em> after <em>ozo<\/em>, the Greek term for fragrance. After this scientist, also the first ever widely used method for the determination of ozone is called: <strong>the Sch\u00f6nbein method (exposure of a test paper impregnated with a mixture of potassium iodide and starch to the atmosphere for several hours).<\/strong> <\/p>\n<p>In the 19th century, ground-level ozone became the subject of numerous measurements in many parts of the world, confirming its existence and examining its function in the atmosphere.<\/p>\n<figure id=\"attachment_8744\" aria-describedby=\"caption-attachment-8744\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-8744 size-full\" src=\"https:\/\/nicoletcz.cz\/app\/uploads\/2021\/08\/2aaa48e4.jpg\" alt=\"\" width=\"590\" height=\"350\" srcset=\"https:\/\/nicoletcz.cz\/app\/uploads\/2021\/08\/2aaa48e4.jpg 590w, https:\/\/nicoletcz.cz\/app\/uploads\/2021\/08\/2aaa48e4-300x178.jpg 300w\" sizes=\"(max-width: 590px) 100vw, 590px\" \/><figcaption id=\"caption-attachment-8744\" class=\"wp-caption-text\">Christian Friedrich Sch\u00f6nbein (1799 \u2013 1868)<\/figcaption><\/figure>\n<p><strong>Ozone is a very strong oxidizing agent and disinfectant. Therefore <\/strong>it is effectively<strong> used for the treatment of drinking water (mainly in the food and beverage industry), water in public swimming pools, the destruction of pathogens and in the treatment of cooling and process water in industry. However, ozone is also used in bleaching, for example in the production of paper, textiles and ceramics. In addition, ozone can also be produced in industrial applications <\/strong>during <strong>dr<\/strong><strong>ying<\/strong> <strong>processes<\/strong><strong>.<\/strong> In the food industry, it is used to decontaminate food or food equipment and surfaces. Above that, it is also used in low concentrations during ozone therapy.<\/p>\n<p>For these reasons, its <strong>fast and<\/strong> <strong>reliable analysis<\/strong>is absolutely essential. <strong>Iodometric titration<\/strong> is one of the most elaborate and used chemical methods. It has the great advantage of accurate absolute determination of the amount of ozone (in oxygen), but does not allow continuous determination. Most recently published work in the field of ozone production and quantification uses the photochemical method of UV absorption (using a mercury lamp as a source of UV radiation). The biggest advantage of this method is the determination of the amount of ozone continuously, and this property can be advantageously used in the automatic control of ozone production by the ozonizer according to the immediate need. Both methods can be used without any further additions only in the case of determination of ozone produced from oxygen, because in the case of ozone production from air it is necessary to consider absorption in other molecules in addition to UV absorption in ozone, especially in N<sub>2<\/sub>, N<sub>2<\/sub>O and NO.<\/p>\n<figure id=\"attachment_8763\" aria-describedby=\"caption-attachment-8763\" style=\"width: 439px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-8763 size-full\" src=\"https:\/\/nicoletcz.cz\/app\/uploads\/2021\/08\/c737e9b8.jpg\" alt=\"\" width=\"439\" height=\"576\" srcset=\"https:\/\/nicoletcz.cz\/app\/uploads\/2021\/08\/c737e9b8.jpg 439w, https:\/\/nicoletcz.cz\/app\/uploads\/2021\/08\/c737e9b8-229x300.jpg 229w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><figcaption id=\"caption-attachment-8763\" class=\"wp-caption-text\">Nicolet <a href=\"https:\/\/nicoletcz.cz\/produkt\/1399\/\">iS5<\/a>spectrometer with gas cell<\/figcaption><\/figure>\n<p>Another modern possibility for the on-line determination of ozone (continuously), but also one time (e.g. in the case of an electric discharge) is <strong>infrared spectroscopy with Fourier transform: FT-IR.<\/strong> A huge advantage of this spectroscopic technique is the quantitative range of ozone determination from very low concentrations <strong>below 0.1 ppm<\/strong> to relatively high concentrations (<strong>percents<\/strong>). Another advantage is the simultaneous on-line determination of other gases in a mixture with ozone (e.g. nitrogen oxides, which ozone can &#8220;produce&#8221; from nitrogen in the used air). Ozone is a nonlinear, triatomic molecule with a permanent dipole moment and as such in the infrared spectrum it behaves similarly to H<sub>2<\/sub>O. To learn about the possibilities of quantitative and qualitative analysis of ozone using the method of <strong>infrared spectroscopy (FT-IR)<\/strong>, <a href=\"https:\/\/nicoletcz.cz\/aplikace\/farmacie-a-medicina\/stanoveni-koncentrace-ozonu\/\">click here.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scientists began to notice the existence of ozone as early as 1775, when in connection with the observation of lightning or the study of electrical equipment, they noticed its presence as a characteristic odor, which we know well from the vicinity of copiers or charming plasma lamps. Ozone, as a chemical, was discovered by the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":8848,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82,33],"tags":[],"class_list":["post-9040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2021-en","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ozone analysis by FT-IR (infrared spectroscopy) - NicoletCZ<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nicoletcz.cz\/en\/ozone-analysis-by-ft-ir-infrared-spectroscopy\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ozone analysis by FT-IR (infrared spectroscopy) - NicoletCZ\" \/>\n<meta property=\"og:description\" content=\"Scientists began to notice the existence of ozone as early as 1775, when in connection with the observation of lightning or the study of electrical equipment, they noticed its presence as a characteristic odor, which we know well from the vicinity of copiers or charming plasma lamps. 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