{"id":4321,"date":"2023-10-24T13:56:17","date_gmt":"2023-10-24T11:56:17","guid":{"rendered":"https:\/\/www.em-grade.com\/general-fr\/p-b-s-buffer\/"},"modified":"2024-02-15T17:34:26","modified_gmt":"2024-02-15T16:34:26","slug":"le-tampon-p-b-s","status":"publish","type":"post","link":"https:\/\/www.em-grade.com\/fr\/tampons\/le-tampon-p-b-s\/","title":{"rendered":"Le tampon P.B.S."},"content":{"rendered":"\r\n<p class=\"wp-block-paragraph\">Le <strong>Tampon Phosphate Salin<\/strong> (<strong>PBS<\/strong>) est une solution tampon couramment utilis\u00e9e en <em>biochimie.<\/em> Il s&rsquo;agit d&rsquo;une solution physiologique contenant du chlorure de sodium, du phosphate disodique, du phosphate monopotassique et un peu de chlorure de potassium. En g\u00e9n\u00e9ral, la concentration de ces sels est la m\u00eame que dans le corps humain (isotonicit\u00e9).<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Ce tampon est principalement utilis\u00e9 pour rincer les cellules lorsqu&rsquo;il est n\u00e9cessaire d&rsquo;\u00e9liminer toute trace de milieu avant de les traiter. Il est destin\u00e9 \u00e0 \u00eatre utilis\u00e9 sur des cellules maintenues en dehors de l&rsquo;incubateur \u00e0 CO<sub>2<\/sub> et n&rsquo;est pas con\u00e7u pour des incubations de longue dur\u00e9e. Son pouvoir tampon est bas\u00e9 sur le couple dihydrog\u00e8ne phosphate\/hydrog\u00e8ne phosphate (pK<sub>A<\/sub>= 7,2), qui est \u00e9galement l&rsquo;un des trois principaux m\u00e9canismes de maintien du pH sanguin (HPO<sub>4<\/sub><sup>2-<\/sup> + H<sup>+<\/sup> = H<sub>2<\/sub>PO<sub>4<\/sub><sup>&#8211;<\/sup>).<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Le Tampon Phosphate Salin (PBS) est une solution tampon couramment utilis\u00e9e en biochimie. Il s&rsquo;agit d&rsquo;une solution physiologique contenant du chlorure de sodium, du phosphate disodique, du phosphate monopotassique et&#8230;<\/p>\n","protected":false},"author":8,"featured_media":7795,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"itsec_x_frame_options":"","footnotes":""},"categories":[287],"tags":[275],"class_list":["post-4321","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tampons","tag-p-b-s-buffer-fr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts\/4321","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/comments?post=4321"}],"version-history":[{"count":0,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts\/4321\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/media\/7795"}],"wp:attachment":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/media?parent=4321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/categories?post=4321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/tags?post=4321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}