{"id":6827,"date":"2022-10-27T07:46:23","date_gmt":"2022-10-27T05:46:23","guid":{"rendered":"https:\/\/www.cerege.fr\/?page_id=6827"},"modified":"2022-11-09T15:13:01","modified_gmt":"2022-11-09T14:13:01","slug":"ln2c-laboratoire-de-preparation","status":"publish","type":"page","link":"https:\/\/www.cerege.fr\/fr\/equipements\/laboratoire-national-des-nucleides-cosmogeniques\/ln2c-laboratoire-de-preparation\/","title":{"rendered":"Laboratoires de pr\u00e9paration"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6827\" class=\"elementor elementor-6827\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5c39f0ea elementor-section-full_width elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"5c39f0ea\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-57057711\" data-id=\"57057711\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-46fe1593 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"46fe1593\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-77ffeb51\" data-id=\"77ffeb51\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ec449c8 elementor-widget elementor-widget-shortcode\" data-id=\"3ec449c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                            ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-1b986408 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1b986408\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-4476ca0f\" data-id=\"4476ca0f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-44c93962 elementor-widget elementor-widget-text-editor\" data-id=\"44c93962\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le Laboratoire National des Nucl\u00e9ides Cosmog\u00e9niques (LN2C) est compos\u00e9 de <strong>7 unit\u00e9s de pr\u00e9paration des \u00e9chantillons<\/strong>, de 2 postes de pr\u00e9paration des cibles pour leurs mesures sur le Spectrom\u00e8tre de Masse par Acc\u00e9l\u00e9rateur (SMA) ASTER et d\u2019un parc analytique \u00e9quip\u00e9 de 2 Spectrom\u00e8tres d\u2019Absorption Atomique \u00c9lectrothermique et d\u2019un ICP-OES (Inductively Coupled Plasma &#8211; Optical Emission Spectrometer).<\/p>\n<p>Il h\u00e9berge \u00e9galement un laboratoire OSL (Optically&nbsp;Stimulated Luminescence) et une ligne d\u2019extraction du 14C.<br>\nLes matrices analys\u00e9es sont principalement des roches, des sables et des eaux.<br><br><\/p>\n<h2><span style=\"font-weight: normal;\">Laboratoire de traitements physiques et chimiques des roches<\/span><\/h2>\n<p>Ce laboratoire est destin\u00e9 aux pr\u00e9-traitements physiques des \u00e9chantillons de roches et aux \u00e9tapes d\u2019<strong>extraction et purification<\/strong> des min\u00e9raux cibles (quartz) \u00e0 partir desquels seront extraits les nucl\u00e9ides cosmog\u00e9niques d\u2019int\u00e9r\u00eat.<br><br><\/p>\n<h2><span style=\"font-weight: normal;\">Laboratoire d\u2019extraction pour l\u2019analyse de <sup>10<\/sup>Be et <sup>26<\/sup>Al produits in-situ<\/span><\/h2>\n<p>Ce laboratoire permet de r\u00e9aliser le <strong>traitement chimique<\/strong> de purification et d\u2019isolation des \u00e9l\u00e9ments (Be et Al) indispensable avant la mesure isotopique. Il est constitu\u00e9 de 3 unit\u00e9s de pr\u00e9paration comportant 5 postes de travail (2 sorbonnes classiques + 3 sorbonnes destin\u00e9es \u00e0 la manipulation d\u2019HF).<br><br><\/p>\n<h2><span style=\"font-weight: normal;\">Laboratoire d\u2019extraction pour l\u2019analyse du <sup>10<\/sup>Be d\u2019origine atmosph\u00e9rique<\/span><\/h2>\n<p>Ce laboratoire permet de r\u00e9aliser le <strong>traitement chimique<\/strong> de purification et d\u2019isolation du Be pour l\u2019\u00e9tude du <sup>10<\/sup>Be atmosph\u00e9rique dans les eaux et les s\u00e9diments. En raison des rapports isotopiques <sup>10<\/sup>Be\/<sup>9<\/sup>Be attendus plusieurs ordres de grandeur sup\u00e9rieurs \u00e0 ceux mesur\u00e9s in situ, il est s\u00e9par\u00e9 physiquement des autres laboratoires d&#8217;extraction.<br>\nCe laboratoire est \u00e9quip\u00e9 de 2 sorbonnes et d\u2019une hotte munie de 2 bains de lixiviation des s\u00e9diments.<br><br><\/p>\n<h2><span style=\"font-weight: normal;\">Laboratoire d\u2019extraction pour l\u2019analyse du <sup>36<\/sup>Cl produit in-situ<\/span><\/h2>\n<p>Ce laboratoire permet de r\u00e9aliser le <strong>traitement chimique<\/strong> de purification et d\u2019isolation du Cl (isotope cosmog\u00e9nique <sup>36<\/sup>Cl) \u00e0 partir de roches carbonat\u00e9es et silicat\u00e9es.<br>\nEn raison de la nature des produits chimiques utilis\u00e9s par les autres m\u00e9thodes d\u2019extraction (produits chlor\u00e9s), il est s\u00e9par\u00e9 physiquement des autres laboratoires.<br><br><\/p>\n<h2><span style=\"font-weight: normal;\">Laboratoire de pr\u00e9paration des cibles<\/span><\/h2>\n<p>Ce laboratoire est destin\u00e9 au <strong>pastillage des \u00e9chantillons<\/strong> et aux \u00e9tapes pr\u00e9paratoires en vue de leur mesure sur le Spectrom\u00e8tre de Masse par Acc\u00e9l\u00e9rateur (SMA) ASTER.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2ee8bb95\" data-id=\"2ee8bb95\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-31645217 elementor-widget elementor-widget-image\" data-id=\"31645217\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" 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sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le Laboratoire National des Nucl\u00e9ides Cosmog\u00e9niques (LN2C) est compos\u00e9 de 7 unit\u00e9s de pr\u00e9paration des \u00e9chantillons, de 2 postes de pr\u00e9paration des cibles pour leurs mesures sur le Spectrom\u00e8tre de [&hellip;]<\/p>\n","protected":false},"author":551,"featured_media":6829,"parent":6461,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-6827","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-19 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