{"id":7144,"date":"2023-10-24T12:11:46","date_gmt":"2023-10-24T10:11:46","guid":{"rendered":"https:\/\/www.em-grade.com\/general-de\/wasserstoffpotenzial\/"},"modified":"2023-10-24T12:11:46","modified_gmt":"2023-10-24T10:11:46","slug":"wasserstoffpotenzial","status":"publish","type":"post","link":"https:\/\/www.em-grade.com\/de\/chemie-definitionen\/wasserstoffpotenzial\/","title":{"rendered":"Wasserstoffpotenzial"},"content":{"rendered":"<p>Das Wasserstoffpotenzial oder der pH-Wert ist ein Ma\u00df f\u00fcr die chemische Aktivit\u00e4t von Hydronen (auch Protonen oder Wasserstoffionen genannt) in einer L\u00f6sung. In w\u00e4ssriger L\u00f6sung liegen diese Ionen insbesondere in Form des Hydronium-Ions (das einfachste der Oxonium-Ionen) vor. <\/p>\n<p>Im Allgemeinen misst der pH-Wert den S\u00e4uregrad oder den Basengehalt einer L\u00f6sung. So wird in einem w\u00e4ssrigen Medium bei 25\u00b0C :<\/p>\n<ul>\n<li>Eine L\u00f6sung mit pH = 7 wird als neutral bezeichnet;<\/li>\n<li>a solution with pH &lt; 7 is said to be acidic; the lower its pH, the more acidic it is;<\/li>\n<li>Eine L\u00f6sung mit einem pH-Wert von &gt; 7 wird als basisch bezeichnet; je h\u00f6her ihr pH-Wert ist, desto basischer ist sie.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H.jpg\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1592\" src=\"https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-300x300.jpg 300w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-150x150.jpg 150w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-600x600.jpg 600w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-140x140.jpg 140w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-100x100.jpg 100w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-500x500.jpg 500w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H-350x350.jpg 350w, https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/potentiel-H.jpg 615w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Der pH-Wert spielt eine grundlegende Rolle in der Zellphysiologie, wobei jedes Zellkompartiment sein eigenes H+-Potenzial hat. Im Allgemeinen liegt der durchschnittliche pH-Wert zwischen 7 und 7,4, weshalb die in der Elektronenmikroskopie verwendeten Puffer in der N\u00e4he von 7,4 liegen. <\/p>\n<p>Passen Sie also den pH-Wert Ihrer Puffer und Fixierpuffer an die Zellkompartimente an, die Sie untersuchen, oder, wenn Sie an der Zell-Ultrastruktur interessiert sind, stellen Sie den pH-Wert auf 7,2 oder 7,4 ein.<br \/>\nNacer Benmeradi<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Das Wasserstoffpotenzial oder der pH-Wert ist ein Ma\u00df f\u00fcr die chemische Aktivit\u00e4t von Hydronen (auch Protonen oder Wasserstoffionen genannt) in einer L\u00f6sung. In w\u00e4ssriger L\u00f6sung liegen diese Ionen insbesondere in&#8230;<\/p>\n","protected":false},"author":8,"featured_media":7145,"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":[445],"tags":[646],"class_list":["post-7144","post","type-post","status-publish","format-standard","has-post-thumbnail","category-chemie-definitionen","tag-ph-de"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/posts\/7144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/comments?post=7144"}],"version-history":[{"count":0,"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/posts\/7144\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/media\/7145"}],"wp:attachment":[{"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/media?parent=7144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/categories?post=7144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.em-grade.com\/de\/wp-json\/wp\/v2\/tags?post=7144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}