{"id":1414,"date":"2017-05-05T12:50:10","date_gmt":"2017-05-05T11:50:10","guid":{"rendered":"https:\/\/www.verre-equipements.fr\/en\/?page_id=1414"},"modified":"2020-11-08T16:15:29","modified_gmt":"2020-11-08T15:15:29","slug":"cuve-chromatographique","status":"publish","type":"page","link":"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html","title":{"rendered":"Cuve Chromatographique"},"content":{"rendered":"<div  class='flex_column av-av_one_half-2a9015ff38129c418a3f2eafba3e9512 av_one_half  avia-builder-el-0  el_before_av_one_half  avia-builder-el-first  first flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-b89b1d7c58d0e458010665e31d3e4f53\">\n#top .av-special-heading.av-av_heading-b89b1d7c58d0e458010665e31d3e4f53{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-b89b1d7c58d0e458010665e31d3e4f53 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-b89b1d7c58d0e458010665e31d3e4f53 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-b89b1d7c58d0e458010665e31d3e4f53 av-special-heading-h3  avia-builder-el-1  el_before_av_hr  avia-builder-el-first '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Cuve Chromatographique<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  class='hr av-av_hr-dcd2069817a0e3d34ae04cad8f3443c7 hr-default  avia-builder-el-2  el_after_av_heading  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-av_textblock-0366cc7376be6c9e82a3e9cc8987b64f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Les <strong>cuves chromatographiques en verre<\/strong>\u00a0propos\u00e9es par Verre Equipements sont fabriqu\u00e9es sur mesure, elles peuvent \u00eatre de diff\u00e9rentes hauteurs et largeurs.<\/p>\n<p>La <strong>chromatographie<\/strong> sur couche mince est la plus simple des m\u00e9thodes chromatographiques.<\/p>\n<p>Elle consiste \u00e0 placer sur une feuille (papier, silice ou autre, voir plus loin) une tache et de la laisser \u00e9luer en la trempant dans un solvant ou un m\u00e9lange de solvant (appel\u00e9 <b>\u00e9luant<\/b>), l\u2019\u00e9luant diffuse le long du support.<\/p>\n<p>La tache migre sur la feuille plus ou moins vite selon la nature des interactions qu&#8217;elle subit de la part du support et de l&#8217;\u00e9luant.<\/p>\n<p>Le principe de la <strong>cuve chromatographique<\/strong> est bas\u00e9e sur une interaction de type \u00e9lectrostatique \/ liaison hydrog\u00e8ne. Le principe du &#8220;qui se ressemble s&#8217;assemble&#8221;, souvent rencontr\u00e9 en chimie permet encore d&#8217;expliquer ici la nature des ph\u00e9nom\u00e8nes impliqu\u00e9s.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Consid\u00e9rons dans un premier temps un support indiff\u00e9rent (ce qui n&#8217;est pas le cas !). Dans la goutte, sont pr\u00e9sents plusieurs compos\u00e9s dont certains sont polaires (P), d&#8217;autre moins, ou apolaires (A). Si l&#8217;\u00e9luant choisi est polaire, il fera migrer plus facilement le compos\u00e9 P, ayant plus de facilit\u00e9 \u00e0 l&#8217;emmener dans la phase mobile.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<blockquote>\n<p>On voit par cet exemple que la polarit\u00e9 de l&#8217;\u00e9luant tiens un r\u00f4le d\u00e9cisif lors de la migration des compos\u00e9s.<\/p>\n<\/blockquote>\n<ul>\n<li>Consid\u00e9rons maintenant que la CCM est indiff\u00e9rente \u00e0 l&#8217;\u00e9luant (!). Si seul le support compte, tout d\u00e9pend de la nature des interactions entre les mol\u00e9cules du m\u00e9lange et celles composant le support. Il s&#8217;agit g\u00e9n\u00e9ralement d&#8217;interactions de type liaison hydrog\u00e8ne. Supposons un support donneur d&#8217;hydrog\u00e8ne (D). Si dans le m\u00e9lange se trouve des compos\u00e9s accepteur d&#8217;hydrog\u00e8ne (A), et d&#8217;autre indiff\u00e9rents (I), migreront plus facilement les compos\u00e9s indiff\u00e9rents aux liaisons hydrog\u00e8nes.<\/li>\n<\/ul>\n<blockquote>\n<p>La situation est souvent bien plus complexe que celle d\u00e9crite dans les deux exemples pr\u00e9c\u00e9dents. Il n&#8217;existe donc pas de th\u00e9orie pour la CCM permettant de choisir le bon \u00e9luant (c&#8217;est lui le plus dur \u00e0 trouver !), le support \u00e9tant g\u00e9n\u00e9ralement de la silice.<\/p>\n<p><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/www.verre-equipements.fr\/en\/demande-de-devis.html\">Nous contacter<\/a><\/span><\/p>\n<\/blockquote>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-av_one_half-b51168870d26eac9084c0e2dc495efe0 av_one_half  avia-builder-el-4  el_after_av_one_half  avia-builder-el-last  flex_column_div  '     ><div  class='avia-slideshow av-av_slideshow-d001f0f4deb5e7fbea620e4cc35ae846 avia-slideshow-no scaling av_slideshow avia-slide-slider  avia-builder-el-5  avia-builder-el-no-sibling  av-slideshow-ui av-slideshow-autoplay av-loop-endless av-loop-manual-endless av-default-height-applied avia-slideshow-1' data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:true,&quot;loop_autoplay&quot;:&quot;endless&quot;,&quot;interval&quot;:2,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:false,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><ul class='avia-slideshow-inner ' style='padding-bottom: 78.675496688742%;'><li  class='avia-slideshow-slide av-av_slideshow-d001f0f4deb5e7fbea620e4cc35ae846__0  slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img fetchpriority=\"high\" class=\"wp-image-1417 avia-img-lazy-loading-not-1417\"  src='https:\/\/www.verre-equipements.fr\/en\/wp-content\/uploads\/sites\/2\/2017\/05\/Cuve-chromatographique-verre-equipements-soufflage-de-verre-laboratoire-borosilicate.jpg' width='755' height='594' title='Cuve chromatographique verre equipements soufflage de verre laboratoire borosilicate' alt='Cuve chromatographique verre'  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><li  class='avia-slideshow-slide av-av_slideshow-d001f0f4deb5e7fbea620e4cc35ae846__1  slide-2 slide-even'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img fetchpriority=\"high\" class=\"wp-image-1424 avia-img-lazy-loading-not-1424\"  src='https:\/\/www.verre-equipements.fr\/en\/wp-content\/uploads\/sites\/2\/2017\/05\/Cuve-chromatographique-thermostat\u00e9-verre-equipements-soufflage-de-verre-laboratoire-borosilicate.jpg' width='632' height='484' title='Cuve chromatographique thermostat\u00e9 verre equipements soufflage de verre laboratoire borosilicate' alt='Cuve chromatographique thermostat\u00e9e'  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><li  class='avia-slideshow-slide av-av_slideshow-d001f0f4deb5e7fbea620e4cc35ae846__2  slide-3 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img fetchpriority=\"high\" class=\"wp-image-1418 avia-img-lazy-loading-not-1418\"  src='https:\/\/www.verre-equipements.fr\/en\/wp-content\/uploads\/sites\/2\/2017\/05\/Cuve-chromatographique-verre-equipements-soufflage-de-verre-laboratoire-borosilicate-2.jpg' width='393' height='594' title='Cuve chromatographique verre equipements soufflage de verre laboratoire borosilicate 2' alt='Cuve chromatographique verre'  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><\/ul><div class='avia-slideshow-arrows avia-slideshow-controls' ><a href='#prev' class='prev-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='left-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Previous\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-1' aria-describedby='av-svg-desc-1' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-1'>Previous<\/title>\n<desc id='av-svg-desc-1'>Previous<\/desc>\n<path d=\"M14.464 27.84q0.832 0.832 0 1.536-0.832 0.832-1.536 0l-12.544-12.608q-0.768-0.768 0-1.6l12.544-12.608q0.704-0.832 1.536 0 0.832 0.704 0 1.536l-11.456 11.904z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Previous<\/span><\/a><a href='#next' class='next-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Next\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-2' aria-describedby='av-svg-desc-2' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-2'>Next<\/title>\n<desc id='av-svg-desc-2'>Next<\/desc>\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Next<\/span><\/a><\/div><div class='avia-slideshow-dots avia-slideshow-controls'><a href='#1' class='goto-slide active' >1<\/a><a href='#2' class='goto-slide ' >2<\/a><a href='#3' class='goto-slide ' >3<\/a><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1414","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cuve chromatographique, fabricant cuve chromatographie<\/title>\n<meta name=\"description\" content=\"Les cuves chromatographiques verre-equipements sont fabriqu\u00e9es sur mesure, elles peuvent \u00eatre de diff\u00e9rente hauteur et largeur. La chromatographie\" \/>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cuve chromatographique, fabricant cuve chromatographie\" \/>\n<meta property=\"og:description\" content=\"Les cuves chromatographiques verre-equipements sont fabriqu\u00e9es sur mesure, elles peuvent \u00eatre de diff\u00e9rente hauteur et largeur. La chromatographie\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html\" \/>\n<meta property=\"og:site_name\" content=\"Verre Equipement Anglais\" \/>\n<meta property=\"article:modified_time\" content=\"2020-11-08T15:15:29+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.verre-equipements.fr\/en\/#website\",\"url\":\"https:\/\/www.verre-equipements.fr\/en\/\",\"name\":\"Verre Equipement Anglais\",\"description\":\"Fabrication verrerie laboratoire et industrie\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.verre-equipements.fr\/en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html#webpage\",\"url\":\"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html\",\"name\":\"Cuve chromatographique, fabricant cuve chromatographie\",\"isPartOf\":{\"@id\":\"https:\/\/www.verre-equipements.fr\/en\/#website\"},\"datePublished\":\"2017-05-05T11:50:10+00:00\",\"dateModified\":\"2020-11-08T15:15:29+00:00\",\"description\":\"Les cuves chromatographiques verre-equipements sont fabriqu\\u00e9es sur mesure, elles peuvent \\u00eatre de diff\\u00e9rente hauteur et largeur. La chromatographie\",\"breadcrumb\":{\"@id\":\"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/www.verre-equipements.fr\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cuve Chromatographique\"}]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Cuve chromatographique, fabricant cuve chromatographie","description":"Les cuves chromatographiques verre-equipements sont fabriqu\u00e9es sur mesure, elles peuvent \u00eatre de diff\u00e9rente hauteur et largeur. La chromatographie","robots":{"index":"noindex","follow":"follow"},"og_locale":"en_GB","og_type":"article","og_title":"Cuve chromatographique, fabricant cuve chromatographie","og_description":"Les cuves chromatographiques verre-equipements sont fabriqu\u00e9es sur mesure, elles peuvent \u00eatre de diff\u00e9rente hauteur et largeur. La chromatographie","og_url":"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html","og_site_name":"Verre Equipement Anglais","article_modified_time":"2020-11-08T15:15:29+00:00","twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/www.verre-equipements.fr\/en\/#website","url":"https:\/\/www.verre-equipements.fr\/en\/","name":"Verre Equipement Anglais","description":"Fabrication verrerie laboratoire et industrie","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.verre-equipements.fr\/en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html#webpage","url":"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html","name":"Cuve chromatographique, fabricant cuve chromatographie","isPartOf":{"@id":"https:\/\/www.verre-equipements.fr\/en\/#website"},"datePublished":"2017-05-05T11:50:10+00:00","dateModified":"2020-11-08T15:15:29+00:00","description":"Les cuves chromatographiques verre-equipements sont fabriqu\u00e9es sur mesure, elles peuvent \u00eatre de diff\u00e9rente hauteur et largeur. La chromatographie","breadcrumb":{"@id":"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.verre-equipements.fr\/en\/cuve-chromatographique.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.verre-equipements.fr\/en\/"},{"@type":"ListItem","position":2,"name":"Cuve Chromatographique"}]}]}},"_links":{"self":[{"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/pages\/1414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/comments?post=1414"}],"version-history":[{"count":6,"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/pages\/1414\/revisions"}],"predecessor-version":[{"id":2209,"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/pages\/1414\/revisions\/2209"}],"wp:attachment":[{"href":"https:\/\/www.verre-equipements.fr\/en\/wp-json\/wp\/v2\/media?parent=1414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}