{"id":74,"date":"2018-01-11T08:34:57","date_gmt":"2018-01-11T08:34:57","guid":{"rendered":"https:\/\/www.orslabs.fr\/?page_id=74"},"modified":"2025-10-17T11:22:35","modified_gmt":"2025-10-17T09:22:35","slug":"tof-iva","status":"publish","type":"page","link":"https:\/\/www.orslabs.fr\/en\/gas-analysis\/tof-iva\/","title":{"rendered":"HR-IVA versus IVA"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kkmxx7ac-acd05174e2991b414d5c8884870bc251\">\n#top .av-special-heading.av-kkmxx7ac-acd05174e2991b414d5c8884870bc251{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-kkmxx7ac-acd05174e2991b414d5c8884870bc251 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-kkmxx7ac-acd05174e2991b414d5c8884870bc251 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-kkmxx7ac-acd05174e2991b414d5c8884870bc251 av-special-heading-h1 blockquote modern-quote modern-centered  avia-builder-el-0  el_before_av_hr  avia-builder-el-first  av-linked-heading'><h1 class='av-special-heading-tag'  itemprop=\"headline\"  >HR-IVA<sup>\u00ae<\/sup> versus IVA<sup>\u00ae<\/sup><\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jsgnarbe-85de43ec92109702d41ab972b59ab303\">\n#top .hr.av-jsgnarbe-85de43ec92109702d41ab972b59ab303{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-jsgnarbe-85de43ec92109702d41ab972b59ab303 .hr-inner{\nwidth:100%;\nborder-color:#faa277;\nmax-width:45%;\n}\n<\/style>\n<div  class='hr av-jsgnarbe-85de43ec92109702d41ab972b59ab303 hr-custom  avia-builder-el-1  el_after_av_heading  el_before_av_one_full  hr-center hr-icon-yes'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><span class='av-seperator-icon' aria-hidden='true' data-av_icon='\ue808' data-av_iconfont='entypo-fontello'><\/span><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-doo3a-4a03aca412d8151289005a01fbe0f7e8\">\n.flex_column.av-doo3a-4a03aca412d8151289005a01fbe0f7e8{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-doo3a-4a03aca412d8151289005a01fbe0f7e8 av_one_full  avia-builder-el-2  el_after_av_hr  el_before_av_two_third  first flex_column_div av-zero-column-padding  '     ><p><section  class='av_textblock_section av-jn4m2urj-0707d8a53fff84a58e172b534f8bcce2 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>ORS operates two gas analyzers that use the Mass Spectrometry technique. See the table for performance comparison:<\/p>\n<\/div><\/section><br \/>\n<div class='avia-data-table-wrap av-cniwe-4f2d9f62c55f387b834832cad54c4a81 avia_responsive_table avia-table-1'><table  class='avia-table avia-data-table avia_pricing_default  avia-builder-el-4  el_after_av_textblock  el_before_av_table '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Table\" ><tbody><tr class='avia-heading-row'><th class=''>Instrument Name<\/th><th class='avia-center-col'>IVA<sup>\u00ae<\/sup><\/th><th class='avia-center-col'>HR-IVA<sup>\u00ae<\/sup><\/th><\/tr><tr class=''><td class=''>Mass Spectrometer Type<\/td><td class='avia-center-col'>Quadrupole<\/td><td class='avia-center-col'>TOF \u2022 Time Of Flight<\/td><\/tr><tr class=''><td class=''>Full Spectra Every<\/td><td class='avia-center-col'>1 second (typical)<\/td><td class='avia-center-col'>20 \u00b5s<\/td><\/tr><tr class=''><td class=''>Calibrated Volumes<\/td><td class='avia-center-col'>0.01cc to 20cc<\/td><td class='avia-center-col'>0.0001cc to 20cc<\/td><\/tr><tr class=''><td class=''>DLA Approved Volumes<\/td><td class='avia-center-col'>0.01cc to 20cc<\/td><td class='avia-center-col'>0.0003cc to 20cc<\/td><\/tr><tr class=''><td class=''>Minimum Detection<\/td><td class='avia-center-col'>0.01cc<\/td><td class='avia-center-col'>1 nanoliter<\/td><\/tr><\/tbody><\/table><\/div><style type='text\/css'>.avia-table-1 td:nth-of-type(1):before { content: 'Instrument Name'; } .avia-table-1 td:nth-of-type(2):before { content: 'IVA\u00ae'; } .avia-table-1 td:nth-of-type(3):before { content: 'HR-IVA\u00ae'; } <\/style><br \/>\n<div class='avia-data-table-wrap av-cniwe-25-6e1b9fe1e7d251cb535ae4345b20ac0a avia_responsive_table avia-table-2'><table  class='avia-table avia-data-table avia_pricing_default  avia-builder-el-5  el_after_av_table  el_before_av_textblock '  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Table\" ><tbody><tr class='avia-heading-row'><th class=''>Instrument Name<\/th><th class='avia-center-col'>IVA<sup>\u00ae<\/sup> and HR-IVA<sup>\u00ae<\/sup><\/th><\/tr><tr class=''><td class=''>Instrument Manufacturer<\/td><td class='avia-center-col'>ORS<\/td><\/tr><tr class=''><td class=''>Sample Temperature<\/td><td class='avia-center-col'>100\u00b0C Typical (can be set from Room Temperature to 150\u00b0C)<\/td><\/tr><tr class=''><td class=''>Sample Mounting<\/td><td class='avia-center-col'>Individual sample mounting. Direct coupling on a \u00d86mm O\u2019ring, or enclosure in a metal Mount<\/td><\/tr><\/tbody><\/table><\/div><style type='text\/css'>.avia-table-2 td:nth-of-type(1):before { content: 'Instrument Name'; } .avia-table-2 td:nth-of-type(2):before { content: 'IVA\u00ae and HR-IVA\u00ae'; } <\/style><br \/>\n<section  class='av_textblock_section av-jsgnf8rd-fd06e3707145cd65283380eff06d9fc6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Both instruments operate under Ultra High Vacuum (E-8 torr). When the gas sample is extracted from the cavity of the device, it flows into the chamber under vacuum and measurement happens during this gas flow.<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2r3hu-02cfcef923ccd164c5726a7d2890699a\">\n.flex_column.av-2r3hu-02cfcef923ccd164c5726a7d2890699a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2r3hu-02cfcef923ccd164c5726a7d2890699a av_two_third  avia-builder-el-7  el_after_av_one_full  el_before_av_one_third  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jsgngucc-9f9451cf3665563df0edd276056c3320 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Quadrupole Mass Spectrometer: IVA<sup>\u00ae<\/sup><\/h2>\n<p>The Quadrupole Mass Spectrometer is a mass filter. All the gas molecules under test are ionized to form ions. All the ions are accelerated and travel through the Quadrupole mass filter. The filter measures one mass at a time and needs to sweep through the mass scale (2 to 160) with different sensitivities. While a mass is measured, the others are ignored. This detector is well suited when there is enough time to perform the various scans. It corresponds to gas volumes &gt;0.01 atm\u00b7cc.<\/p>\n<\/div><\/section><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-20exa-610c3485c4fdd7ac2c452f76277c38f8\">\n.flex_column.av-20exa-610c3485c4fdd7ac2c452f76277c38f8{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-20exa-610c3485c4fdd7ac2c452f76277c38f8 av_one_third  avia-builder-el-9  el_after_av_two_third  el_before_av_one_half  flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jn636264-9d078f57f3ec1283bd124c1775641d79\">\n.avia-image-container.av-jn636264-9d078f57f3ec1283bd124c1775641d79 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-jn636264-9d078f57f3ec1283bd124c1775641d79 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-jn636264-9d078f57f3ec1283bd124c1775641d79 av-styling- avia_animated_image av-animated-when-visible-95 pop-up avia-align-center  avia-builder-el-10  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-699 avia-img-lazy-loading-not-699 avia_image ' src=\"https:\/\/www.orslabs.fr\/wp-content\/uploads\/2018\/10\/quadrupole-ms-1.png\" alt='Quadrupole Mass Spectrometer - IVA\u00ae' title='Quadrupole Mass Spectrometer - IVA\u00ae'  height=\"455\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.orslabs.fr\/wp-content\/uploads\/2018\/10\/quadrupole-ms-1.png 400w, https:\/\/www.orslabs.fr\/wp-content\/uploads\/2018\/10\/quadrupole-ms-1-264x300.png 264w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1gqfq-f9a0eda44bf379f1f066cde3f5c54bfb\">\n.flex_column.av-1gqfq-f9a0eda44bf379f1f066cde3f5c54bfb{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1gqfq-f9a0eda44bf379f1f066cde3f5c54bfb av_one_half  avia-builder-el-11  el_after_av_one_third  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jsgnho7a-3dfa43256a5520d208b10f2185631214 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>TOF (Time Of Flight) Mass Spectrometer: HR-IVA<sup>\u00ae<\/sup><\/h2>\n<p>When the gas sample is smaller than 0.01cc, the gas flow is not long enough to scan through the mass range. ORS developed the HR-IVA<sup>\u00ae<\/sup> with a TOF mass spectrometer. After the formation of ions, they are injected in the Flight Path with the same initial energy. Light ions travel faster, heavy ones travel slower. Ions impact a detector plate whose voltage is monitored. With this analytical technique, the travel time is a function of the square root of mass-to-charge ratio.<\/p>\n<p>The main advantage of this equipment is that it gives at least 100 times more data points than the IVA<sup>\u00ae<\/sup>. It is therefore possible to acquire a lot of data during the very fast burst of a 0.0001 atm\u00b7cc package!<\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-q18y-1ee1e212e77b87672e6d39ac7940c124\">\n.flex_column.av-q18y-1ee1e212e77b87672e6d39ac7940c124{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-q18y-1ee1e212e77b87672e6d39ac7940c124 av_one_half  avia-builder-el-13  el_after_av_one_half  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jn6394jo-53db80076cb968d184acb99b19d04d93\">\n.avia-image-container.av-jn6394jo-53db80076cb968d184acb99b19d04d93 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-jn6394jo-53db80076cb968d184acb99b19d04d93 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-jn6394jo-53db80076cb968d184acb99b19d04d93 av-styling- avia_animated_image av-animated-when-visible-95 pop-up avia-align-center  avia-builder-el-14  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-631 avia-img-lazy-loading-not-631 avia_image ' src=\"https:\/\/www.orslabs.fr\/wp-content\/uploads\/2018\/10\/tof-ms.png\" alt='TOF Mass Spectrometer - 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