{"id":11,"date":"2021-07-03T11:34:46","date_gmt":"2021-07-03T11:34:46","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=11"},"modified":"2021-09-15T07:13:57","modified_gmt":"2021-09-15T07:13:57","slug":"uv-ri-pda-detector-principles","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/chemistry-interview-questions\/uv-ri-pda-detector-principles\/","title":{"rendered":"UV, RI, PDA Detector principles ?"},"content":{"rendered":"\r\n<h2 id=\"uv-ri-pda-detector-principles\" class=\"wp-block-heading\" style=\"text-align: justify;\">UV, RI, PDA Detector principles ?<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\" style=\"text-align: justify;\">\r\n<li>UV-Ultraviolet<\/li>\r\n<li>RI-Refractive index<\/li>\r\n<li>PDA-Photo diode<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 id=\"ultraviolet-uv\" class=\"wp-block-heading\" style=\"text-align: justify;\">Ultraviolet (UV) :<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\" style=\"text-align: justify;\">\r\n<li>Electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n<p style=\"text-align: justify;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-medium\" src=\"https:\/\/cdn.wikitechy.com\/interview-questions\/Chemistry\/uv-detector.png\" alt=\"uv-detector\" width=\"499\" height=\"465\" \/><\/p>\r\n\r\n\r\n\r\n<h2 id=\"refractive-index\" class=\"wp-block-heading\" style=\"text-align: justify;\">Refractive index :<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\" style=\"text-align: justify;\">\r\n<li>The refractive index, also known as the index of refraction, is defined as the ratio of the velocity of light in vacuum (or air) to its velocity in a transparent medium.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\" style=\"text-align: justify;\"><\/figure>\r\n<p><img decoding=\"async\" class=\"aligncenter size-medium\" src=\"https:\/\/cdn.wikitechy.com\/interview-questions\/Chemistry\/ri-detector.png\" alt=\"ri-detector\" width=\"373\" height=\"219\" \/><\/p>\r\n\r\n\r\n\r\n<h2 id=\"pda-photo-diode\" class=\"wp-block-heading\" style=\"text-align: justify;\">PDA \u2013 Photo Diode :<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\" style=\"text-align: justify;\">\r\n<li>A photodiode is a semiconductor device that converts light into an electrical current. The current is generated when photons are absorbed in the photodiode. Photodiodes may contain optical filters, built-in lenses, and may have large or small surface areas.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\" style=\"text-align: justify;\"><\/figure>\r\n<p><img decoding=\"async\" class=\"aligncenter size-medium\" src=\"https:\/\/cdn.wikitechy.com\/interview-questions\/Chemistry\/pda-detector.png\" alt=\"PDA Detector\" width=\"299\" height=\"220\" \/><\/p>\r\n\r\n\r\n\r\n<p style=\"text-align: justify;\">\u00a0<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Answer : The UV, RI, PDA detector principles are&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[9373,9372,9378,9375,9379,9376,9374,9382,9381,9380,9377,9383,9384,15865],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-chemistry-interview-questions","tag-difference-between-pda-and-dad-detectors","tag-difference-between-pda-detector-and-uv-detector","tag-hplc-detectors-comparison","tag-hplc-detectors-principles","tag-photodiode-array-detector-advantages","tag-principle-of-uv-detector-in-hplc","tag-ri-detector","tag-ri-detector-calibration","tag-ri-detector-troubleshooting","tag-ri-detector-uses","tag-uv-detector","tag-uv-detector-sensor","tag-uv-vis-detector","tag-zcl-chemicals-interview-question-and-answers"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>UV, RI, PDA Detector principles ? 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