{"id":1707,"date":"2017-01-10T14:44:45","date_gmt":"2017-01-10T12:44:45","guid":{"rendered":"https:\/\/www.fractioncollector.info\/?p=1707"},"modified":"2024-08-05T16:03:04","modified_gmt":"2024-08-05T14:03:04","slug":"chromatographie-de-purification-des-proteines-par-collecte-de-fractions","status":"publish","type":"post","link":"https:\/\/www.fractioncollector.info\/fr\/fraction-collector-protein-purification-chromatography\/","title":{"rendered":"Purification r\u00e9ussie des prot\u00e9ines\u00a0: \u00e9lution par gradient"},"content":{"rendered":"<div id=\"pl-1707\"  class=\"panel-layout\" ><div id=\"pg-1707-0\"  class=\"panel-grid panel-has-style\"  style=\"margin-bottom: 50px\" ><div class=\"siteorigin-panels-stretch panel-row-style-full-width panel-row-style panel-row-style-for-1707-0\" style=\"padding: 0px 0px 0px 0px;\" data-stretch-type=\"full-width-stretch\" ><div id=\"pgc-1707-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-0-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"textwidget\"><h1 style=\"text-align: center;\"><span style=\"color: #ffffff; font-size: 35px; text-shadow: 1px 1px #000000;\">Purification des prot\u00e9ines\u00a0: chromatographie liquide et \u00e9lution par gradient<\/span><\/h1>\n<h2 style=\"text-align: center;\"><span style=\"color: #333333; font-size: 20px; text-shadow: 1px 1px #000000;\">avec collecteur de fractions OMNICOLL et pompes p\u00e9ristaltiques LAMBDA<\/span><\/h2>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-1707-1\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-1-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"1\" ><div class=\"textwidget\"><p>Pour <strong>purification des prot\u00e9ines<\/strong> et <strong>isolement de peptides, d&#039;acides nucl\u00e9iques ou de petites mol\u00e9cules<\/strong> \u00e0 partir du m\u00e9lange brut de bouillon de fermentation, <strong>liquide<\/strong>\u00a0<strong>La chromatographie sur colonne (LC) est largement utilis\u00e9e<\/strong>\u00a0avec \u00e9change d&#039;ions, interaction hydrophobe, affinit\u00e9 ou exclusion de taille dans le traitement en aval (DSP).<\/p>\n<p>Pour <strong>optimiser les proc\u00e9d\u00e9s de chromatographie liquide<\/strong>, le collecteur de fractions OMNICOLL et les pompes \u00e0 liquides p\u00e9ristaltiques fiables LAMBDA sont utilis\u00e9s avec succ\u00e8s dans la pratique du laboratoire\u00a0:<\/p>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-2\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-2-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-2-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"2\" ><div class=\"textwidget\"><h3><span style=\"color: #60351d;\">Exemple de configuration d&#039;une collecte automatique de fractions<\/span><\/h3>\n<p>Par exemple, un complet <b>dispositif de chromatographie sur colonne avec collecte automatique<\/b> l&#039;\u00e9luat obtenu \u00e0 l&#039;aide du collecteur de fractions OMNICOLL comprend\u00a0:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2635 size-full\" title=\"Collecteur de fractions LAMBDA OMNICOLL et pompes p\u00e9ristaltiques LAMBDA pour la purification des prot\u00e9ines par \u00e9lution en gradient de concentration\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/OMNICOLL-fraction-collector-LAMBDA-pumps-protein-purification-gradient-elution.jpg\" alt=\"Collecteur de fractions LAMBDA OMNICOLL et pompes p\u00e9ristaltiques LAMBDA pour la purification des prot\u00e9ines par \u00e9lution en gradient de concentration\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/OMNICOLL-fraction-collector-LAMBDA-pumps-protein-purification-gradient-elution.jpg 700w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/OMNICOLL-fraction-collector-LAMBDA-pumps-protein-purification-gradient-elution-418x239.jpg 418w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/OMNICOLL-fraction-collector-LAMBDA-pumps-protein-purification-gradient-elution-150x86.jpg 150w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\n<ul>\n<li>Deux conteneurs similaires avec <b>Les tampons d&#039;\u00e9lution A et B sont reli\u00e9s par un siphon.<\/b> (ou un tube en bas avec une valve pour r\u00e9gler le d\u00e9bit)<\/li>\n<li><b>Tampon d&#039;\u00e9lution A<\/b> est constamment aspir\u00e9 dans le b\u00e9cher avec <b>tampon d&#039;\u00e9lution B<\/b> qui est constamment <b>m\u00e9lang\u00e9 par agitateur magn\u00e9tique<\/b>, par cons\u00e9quent <b>en modifiant sa concentration tampon<\/b><\/li>\n<li>Pompe p\u00e9ristaltique programmable LAMBDA \u00e0 <b>pomper le m\u00e9lange \u00e0 gradient<\/b> dans la colonne<\/li>\n<li><b>\u00c9luer de la colonne<\/b> est transmis par le <b>d\u00e9tecteur <\/b>(pour mesurer le pH, l&#039;absorbance \u00e0 280 nm et la conductivit\u00e9)<\/li>\n<li>\u00c0 partir du d\u00e9tecteur, le <b>fractionnement des prot\u00e9ines<\/b> est collect\u00e9 par le <b>Collecteur de fractions OMNICOLL<\/b> dans les contenants souhait\u00e9s (ex : tubes, flacons, etc.)<\/li>\n<\/ul>\n<p>Les prot\u00e9ines sont \u00e9lu\u00e9es en modifiant la composition du tampon <i>(force ionique, pH, conductivit\u00e9, concentration en sels, etc.)<\/i>. Les conditions d&#039;\u00e9lution peuvent \u00eatre modifi\u00e9es\u00a0: lin\u00e9aires, par paliers ou par paliers segment\u00e9s. <b>modifier le flux du tampon A vers le tampon B<\/b> dans lequel la composition de la phase mobile change au fil du temps.<\/p>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-3\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-3-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-3-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"3\" ><div class=\"textwidget\"><h2 style=\"text-align: center;\">Proc\u00e9dure<\/h2>\n<p>En chromatographie liquide sur colonne, il est important de remplir la colonne uniform\u00e9ment.<strong> sans bulles d&#039;air, canaux ni fissures sur la phase stationnaire<\/strong>.<\/p>\n<p>La pompe p\u00e9ristaltique LAMBDA alimente la <strong>phase mobile liquide en continu<\/strong> \u00e0 la colonne de chromatographie garnie \u00e0 un d\u00e9bit constant <strong>d\u00e9bit reproductible sans pulsation<\/strong>.<\/p>\n<p>Le m\u00e9lange d&#039;\u00e9chantillons d\u00e9pos\u00e9 en haut de la colonne chromatographique est s\u00e9par\u00e9 par passage \u00e0 travers la phase stationnaire solide (r\u00e9sine)\u00a0:<\/p>\n<p>Les constituants du bouillon de fermentation sont adsorb\u00e9s et d\u00e9sorb\u00e9s \u00e0 des degr\u00e9s divers sur la phase stationnaire, tandis que\u00a0<strong>les composants de la phase mobile lentement <\/strong><strong>s\u00e9par\u00e9<\/strong> les uns des autres.<\/p>\n<p>Lorsque la phase mobile continue de circuler \u00e0 travers la colonne, l&#039;effluent ou l&#039;\u00e9luat de la colonne est\u00a0<strong>collect\u00e9 en fractions<\/strong>\u00a0\u00e0 l&#039;extr\u00e9mit\u00e9 inf\u00e9rieure de la colonne chromatographique\u00a0<strong>avec l&#039;aide du collecteur de fractions OMNICOLL<\/strong>\u00a0.<\/p>\n<p>Un d\u00e9tecteur pour surveiller en continu l&#039;\u00e9lution des prot\u00e9ines de la colonne ou de la\u00a0<strong>analyse des fractions<\/strong>\u00a0donne des informations sur le <strong>concentration de la prot\u00e9ine souhait\u00e9e<\/strong> en fraction pour un traitement ult\u00e9rieur, par exemple : par \u00e9lectrophor\u00e8se sur gel.<\/p>\n<p>\u00a0<\/p>\n<hr \/>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-4\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-4-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-4-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"4\" ><div class=\"textwidget\"><h2 style=\"text-align: center;\">Optimisation des m\u00e9thodes d&#039;\u00e9lution pour la purification des prot\u00e9ines<\/h2>\n<p>Le choix du bon tampon d&#039;\u00e9lution, en chromatographie liquide pour la purification d&#039;enzymes, peut consid\u00e9rablement am\u00e9liorer la qualit\u00e9 de la s\u00e9paration et le temps d&#039;analyse.<\/p>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-5\"  class=\"panel-grid panel-has-style\"  style=\"margin-bottom: 50px\" ><div class=\"siteorigin-panels-stretch panel-row-style-full-width panel-row-style panel-row-style-for-1707-5\" style=\"background-color: #f7f7f7; \" data-stretch-type=\"full\" ><div id=\"pgc-1707-5-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-5-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"5\" ><div style=\"padding: 25px 25px 25px 25px;\" class=\"panel-widget-style panel-widget-style-for-1707-5-0-0\" ><div class=\"textwidget\"><h3>\u00c9lution isocratique en chromatographie liquide sur colonne<\/h3>\n<p>En chromatographie liquide, les prot\u00e9ines sont s\u00e9par\u00e9es sous <strong>composition de solvant constante<\/strong> (c.-\u00e0-d. \u00e9lution isocratique) :<\/p>\n<ul>\n<li>Lorsque les \u00e9chantillons ne sont pas tr\u00e8s complexes et \u00e9galement lorsque les composants de l&#039;\u00e9chantillon n&#039;ont pas des temps de r\u00e9tention similaires.<\/li>\n<\/ul>\n<p>De plus, pour les prot\u00e9ines les plus fortement adsorb\u00e9es, l&#039;\u00e9lution avec une composition de phase mobile constante sera <b>l&#039;\u00e9lution prend beaucoup de temps<\/b>.<\/p>\n<p>Un tampon et une pompe p\u00e9ristaltique sont utilis\u00e9s pour l&#039;\u00e9lution isocratique.<\/p>\n<\/div><\/div><\/div><\/div><div id=\"pgc-1707-5-1\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-5-1-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"6\" ><div style=\"padding: 25px 25px 25px 25px;\" class=\"panel-widget-style panel-widget-style-for-1707-5-1-0\" ><div class=\"textwidget\"><h3>\u00c9lution par gradient - pour la purification des prot\u00e9ines \u00e0 partir de m\u00e9langes complexes (\u00e9chantillons biologiques)<\/h3>\n<p>En \u00e9lution par gradient, la composition de <strong>changements de phase mobile<\/strong> durant le processus de s\u00e9paration et influence la r\u00e9tention des analytes.<\/p>\n<p>L&#039;\u00e9lution par gradient est avantageusement utilis\u00e9e dans la purification des prot\u00e9ines\u00a0:<\/p>\n<ul>\n<li><strong>\u00c9chantillons biologiques complexes<\/strong><\/li>\n<li><strong>M<\/strong><b>m\u00e9langes aux propri\u00e9t\u00e9s connues<\/b><\/li>\n<li><strong>C<\/strong><b>composants avec des temps de r\u00e9tention similaires<\/b><\/li>\n<\/ul>\n<p>Si l&#039;\u00e9lution par gradient est utilis\u00e9e en chromatographie liquide sur colonne pour la purification des prot\u00e9ines, alors\u00a0<strong>Le temps de r\u00e9tention peut \u00eatre raccourci.<\/strong><\/p>\n<p><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.4.0.4\">L&#039;\u00e9lution par gradient est r\u00e9alis\u00e9e avec\u00a0<\/span><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.4.0.5\"><strong>deux tampons<\/strong> et <strong>une ou deux pompes p\u00e9ristaltiques.<\/strong><\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><div id=\"pg-1707-6\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-6-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-6-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"7\" ><div class=\"textwidget\"><h3 style=\"text-align: center;\">\u00c9lution par gradient et profil d&#039;\u00e9lution<\/h3>\n<p>L&#039;\u00e9lution par gradient implique que la composition de la phase mobile sera modifi\u00e9e pendant la s\u00e9paration des \u00e9chantillons pour une s\u00e9paration optimale en un minimum de temps.<\/p>\n<p>La composition diff\u00e9rente de l&#039;\u00e9luant (\u00e9lution par gradient) permet d&#039;influencer le facteur de r\u00e9tention et donc le facteur de capacit\u00e9.<\/p>\n<h4>Les profils de gradient\u00a0:<\/h4>\n<p style=\"padding-left: 90px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1939\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Linear-gradient-elution-of-proteins.jpg\" alt=\"\" width=\"238\" height=\"212\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1940\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Segmented-gradient-elution-of-proteins.jpg\" alt=\"\" width=\"238\" height=\"212\" \/>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1947 size-full\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Stepwise-gradient-elution-of-proteins.jpg\" alt=\"\" width=\"238\" height=\"212\" srcset=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Stepwise-gradient-elution-of-proteins.jpg 238w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Stepwise-gradient-elution-of-proteins-150x134.jpg 150w\" sizes=\"auto, (max-width: 238px) 100vw, 238px\" \/><\/p>\n<p>Les gradients lin\u00e9aires sont g\u00e9n\u00e9ralement pr\u00e9f\u00e9r\u00e9s ; ils peuvent \u00eatre impl\u00e9ment\u00e9s dans <strong>formes lin\u00e9aires, segment\u00e9es, convexes et concaves<\/strong>. Les gradients non lin\u00e9aires offrent plusieurs avantages distincts, notamment un temps de s\u00e9paration r\u00e9duit, une r\u00e9solution d&#039;\u00e9chantillon am\u00e9lior\u00e9e et une sensibilit\u00e9 de d\u00e9tection plus \u00e9lev\u00e9e.<\/p>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-7\"  class=\"panel-grid panel-has-style\"  style=\"margin-bottom: 50px\" ><div class=\"siteorigin-panels-stretch panel-row-style-full-width panel-row-style panel-row-style-for-1707-7\" data-stretch-type=\"full\" ><div id=\"pgc-1707-7-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-7-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"8\" ><div class=\"textwidget\"><p style=\"text-align: left;\"><a href=\"https:\/\/www.lambda-instruments.com\/peristaltic-pumps\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-1952\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Compact-and-reliable-LAMBDA-lab-peristaltic-pumps.gif\" alt=\"\" width=\"493\" height=\"358\" \/><\/a><\/p>\n<\/div><\/div><\/div><div id=\"pgc-1707-7-1\"  class=\"panel-grid-cell\" ><div class=\"panel-cell-style panel-cell-style-for-1707-7-1\" ><div id=\"panel-1707-7-1-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"9\" ><div style=\"padding: 25px 25px 25px 25px;\" class=\"panel-widget-style panel-widget-style-for-1707-7-1-0\" ><div class=\"textwidget\"><p style=\"text-align: left;\">\n<\/p><p style=\"text-align: left;\"><em>Les biochimistes recommandent <strong>Pompes \u00e0 liquides p\u00e9ristaltiques LAMBDA<\/strong> qui garantissent une application sans pulsation de la phase mobile : <a href=\"https:\/\/www.lambda-instruments.com\/peristaltic-pumps\/\" target=\"_blank\" rel=\"noopener\">www.lambda-instruments.com\/peristaltic-pumps\/<\/a>.<br \/>\n<\/em><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><div id=\"pg-1707-8\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-8-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-8-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"10\" ><div class=\"textwidget\"><h3 style=\"text-align: center;\">G\u00e9n\u00e9ration de gradients avec des pompes p\u00e9ristaltiques fiables<\/h3>\n<p><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.0.0.0\">Les pompes p\u00e9ristaltiques de laboratoire LAMBDA sont programmables et t\u00e9l\u00e9commandables pour r\u00e9aliser\u00a0<\/span><strong>\u00e9lution par gradient lin\u00e9aire, par paliers et segment\u00e9<\/strong><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.0.0.2\">.<\/span><\/p>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-9\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-9-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-9-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"11\" ><div style=\"padding: 25px 25px 25px 25px;\" class=\"panel-widget-style panel-widget-style-for-1707-9-0-0\" ><div class=\"textwidget\"><h3 class=\"font_4\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.d\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.d.0\">\u00c9lution par gradient avec une seule pompe<\/span><\/h3>\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.f\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.f.0\">L&#039;\u00e9lution par gradient peut \u00e9galement \u00eatre r\u00e9alis\u00e9e avec une seule pompe p\u00e9ristaltique\u00a0: les conteneurs avec\u00a0<strong>tampon d&#039;\u00e9lution A et B<\/strong> sont <strong>reli\u00e9s par un siphon<\/strong>\u00a0ou un tube en bas muni d&#039;une vanne pour r\u00e9gler le d\u00e9bit<\/span><\/p>\n<ol class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g\">\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.0\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.0.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.0.0.0\">Le tampon d&#039;\u00e9lution A est introduit de mani\u00e8re constante dans le b\u00e9cher contenant le tampon d&#039;\u00e9lution B, pr\u00e9alablement agit\u00e9.\u00a0<strong>la concentration du tampon est modifi\u00e9e<\/strong><\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.1\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.1.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.1.0.0\">Pompe p\u00e9ristaltique programmable LAMBDA utilis\u00e9e pour\u00a0<strong>pomper le m\u00e9lange \u00e0 gradient<\/strong>\u00a0dans la colonne de chromatographie<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.2\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.2.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.2.0.0\">L&#039;\u00e9luat de la colonne a travers\u00e9 le d\u00e9tecteur pour mesurer le pH, l&#039;absorbance \u00e0 280 nm et la conductivit\u00e9.<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.3\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.3.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.g.3.0.0\">\u00c0 partir du d\u00e9tecteur, le\u00a0<strong>fractionnement de l&#039;\u00e9luat recueilli<\/strong>\u00a0par le collecteur de fractions OMNICOLL dans les conteneurs souhait\u00e9s\u00a0<em>(ex : bouteilles, b\u00e9chers, tubes, flacons, etc.)<\/em><\/span><\/p>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div><\/div><div id=\"pgc-1707-9-1\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-9-1-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"12\" ><div style=\"padding: 25px 25px 25px 25px;\" class=\"panel-widget-style panel-widget-style-for-1707-9-1-0\" ><div class=\"textwidget\"><h3 class=\"font_4\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.8\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.8.0\">\u00c9lution par gradient avec deux pompes<\/span><\/h3>\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.a\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.a.0\"><strong>Deux pompes p\u00e9ristaltiques programmables LAMBDA<\/strong>\u00a0sont utilis\u00e9s pour un m\u00e9lange reproductible des \u00e9luants pour l&#039;\u00e9lution en gradient.<\/span><\/p>\n<ol class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b\">\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.0\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.0.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.0.0.0\">Le <strong>changement de la composition au fil du temps<\/strong> peut \u00eatre\u00a0<strong>programm\u00e9<\/strong> directement sur l&#039;\u00e9cran de la pompe p\u00e9ristaltique LAMBDA ou elle peut \u00eatre enregistr\u00e9e et affich\u00e9e sous forme de graphique en temps r\u00e9el \u00e0 l&#039;aide du logiciel de contr\u00f4le PC PNet.<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.2\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.2.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.2.0.0\">Le\u00a0<strong>Le m\u00e9lange en gradient traverse la colonne de chromatographie.<\/strong>\u00a0et les composants sont s\u00e9par\u00e9s.<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.3\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.3.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.3.0.0\">L&#039;\u00e9luat de la colonne a travers\u00e9 le d\u00e9tecteur pour mesurer le\u00a0<strong>pH, absorption \u00e0 280 nm et conductivit\u00e9<\/strong>.<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.4\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.4.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.b.4.0.0\">Collecteur de fractions automatis\u00e9 LAMBDA OMNICOLL,\u00a0<strong>fractionne l&#039;\u00e9luat<\/strong>\u00a0et collecte les fractions en fonction du temps programm\u00e9 ou du compteur de chutes.<\/span><\/p>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-1707-10\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-10-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-10-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child\" data-index=\"13\" style=\"margin-bottom: 50px\" ><div class=\"textwidget\"><hr \/>\n<p>\u00a0<\/p>\n<\/div><\/div><div id=\"panel-1707-10-0-1\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-last-child\" data-index=\"14\" ><div class=\"textwidget\"><h2 class=\"font_3\" style=\"text-align: center;\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.i\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.i.0\">Exigences du syst\u00e8me de pompage pour la chromatographie sur colonne<\/span><\/h2>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-11\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-11-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-11-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"15\" ><div class=\"textwidget\"><p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.k\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.k.0\">Les exigences les plus importantes du syst\u00e8me de pompage pour la chromatographie sur colonne sont\u00a0:<\/span><\/p>\n<ul class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l\">\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0.0.0\"><strong>d\u00e9bit constant et reproductible<\/strong><br data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0.0.0.1\" \/>La reproductibilit\u00e9 d\u00e9pend des temps de r\u00e9tention des pics. Ces temps de r\u00e9tention d\u00e9pendent du d\u00e9bit.<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1.0.0\"><strong>\u00c9coulement sans pulsations<\/strong><br data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1.0.0.1\" \/>La phase stationnaire doit \u00eatre prot\u00e9g\u00e9e contre les surpressions. La ligne de base du d\u00e9tecteur doit rester stable.<\/span><\/p>\n<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<p>Les pompes p\u00e9ristaltiques programmables LAMBDA MULTIFLOW, assorties d&#039;une garantie de 5 ans, sont recommand\u00e9es pour obtenir des d\u00e9bits reproductibles.<\/p>\n<\/div><\/div><\/div><div id=\"pgc-1707-11-1\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-11-1-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"16\" ><div class=\"textwidget\"><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1959\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Peristaltic_pumps_LAMBDA.jpg\" alt=\"Pompes p\u00e9ristaltiques de laboratoire programmables LAMBDA\" width=\"394\" height=\"328\" srcset=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Peristaltic_pumps_LAMBDA.jpg 394w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Peristaltic_pumps_LAMBDA-150x125.jpg 150w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/Peristaltic_pumps_LAMBDA-334x278.jpg 334w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/p>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-12\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-12-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-12-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"17\" ><div class=\"textwidget\"><h2 class=\"font_3\" style=\"text-align: center;\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.i\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.i.0\">Exigences de la fraction pour la purification des prot\u00e9ines<\/span><\/h2>\n<\/div><\/div><\/div><\/div><div id=\"pg-1707-13\"  class=\"panel-grid panel-no-style\"  style=\"margin-bottom: 50px\" ><div id=\"pgc-1707-13-0\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-13-0-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"18\" ><div class=\"textwidget\"><p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.k\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.k.0\">Les exigences les plus importantes concernant le collecteur de fractions pour la chromatographie sur colonne liquide sont les suivantes\u00a0:<\/span><\/p>\n<ul class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l\">\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0.0.0\"><strong>Capacit\u00e9 illimit\u00e9e<\/strong><br data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.0.0.0.1\" \/>La possibilit\u00e9 de collecter un nombre illimit\u00e9 de fractions est extr\u00eamement importante, notamment lors de l&#039;optimisation des processus.<\/span><\/p>\n<\/li>\n<li data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1\">\n<p class=\"font_8\" data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1.0\"><span data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1.0.0\"><strong>Gamme de volume diff\u00e9rente<\/strong><br data-reactid=\".0.$SITE_ROOT.$desktop_siteRoot.$PAGES_CONTAINER.$centeredContent.$inlineContent.$SITE_PAGES.$c1sew_DESKTOP.$inlineContent.$j0ky2w9u.$inlineContent.0.$child.$0.$inlineContent.$1.$5.$0.$richTextContainer.l.1.0.0.1\" \/>Afin de pouvoir adapter le collecteur de fractions \u00e0 diverses exp\u00e9riences de laboratoire et \u00e0 des proc\u00e9d\u00e9s \u00e0 l&#039;\u00e9chelle pilote.<\/span><\/p>\n<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<p>Le collecteur de fractions personnalisable OMNICOLL est id\u00e9al pour une optimisation efficace des processus \u00e0 l&#039;\u00e9chelle du laboratoire et du pilote.<\/p>\n<p>\u00a0<\/p>\n<\/div><\/div><\/div><div id=\"pgc-1707-13-1\"  class=\"panel-grid-cell\" ><div id=\"panel-1707-13-1-0\" class=\"so-panel widget widget_black-studio-tinymce widget_black_studio_tinymce panel-first-child panel-last-child\" data-index=\"19\" ><div class=\"textwidget\"><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-928 size-full\" src=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/figure3.8-1-Example-of-taking-4x2-fractions-in-a-4-channel-configuration.jpg\" alt=\"\" width=\"665\" height=\"684\" srcset=\"https:\/\/www.fractioncollector.info\/wp-content\/uploads\/figure3.8-1-Example-of-taking-4x2-fractions-in-a-4-channel-configuration.jpg 665w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/figure3.8-1-Example-of-taking-4x2-fractions-in-a-4-channel-configuration-146x150.jpg 146w, https:\/\/www.fractioncollector.info\/wp-content\/uploads\/figure3.8-1-Example-of-taking-4x2-fractions-in-a-4-channel-configuration-270x278.jpg 270w\" sizes=\"auto, (max-width: 665px) 100vw, 665px\" \/><\/p>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Protein purification: Liquid chromatography &amp; gradient elution with OMNICOLL fraction collector and LAMBDA peristaltic pumps For protein purification and isolation of peptides, nucleic acids or small molecules from the crude mixture of fermentation broth, liquid\u00a0column chromatography (LC) is widely used\u00a0with ion exchange, hydrophobic interaction, affinity or size exclusion in downstream processing (DSP).In order to optimize [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2635,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[132,4],"tags":[131,126,128,127,14,125,130,129],"class_list":["post-1707","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-post-name","category-omnicoll","tag-automatic-fraction-collector","tag-gradient-elution","tag-linear-gradient-elution","tag-liquid-chromatography","tag-peristaltic-pump","tag-protein-purification","tag-segmented-stepwise-gradient-elution","tag-stepwise-gradient-elution","post-with-thumbnail","post-with-thumbnail-icon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Successful Protein Purification: Gradient elution &#8211; LAMBDA OMNICOLL | LAMBDA Laboratory 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