{"id":163,"date":"2026-02-01T09:00:31","date_gmt":"2026-02-01T12:00:31","guid":{"rendered":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/?page_id=163"},"modified":"2026-03-03T08:28:14","modified_gmt":"2026-03-03T11:28:14","slug":"fisica-nuclear-e-a-determinacao-da-fracao-biogenica-de-plasticos-e-combustiveis","status":"publish","type":"page","link":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/fisica-nuclear-e-a-determinacao-da-fracao-biogenica-de-plasticos-e-combustiveis\/","title":{"rendered":"F\u00edsica Nuclear e a Determina\u00e7\u00e3o da Fra\u00e7\u00e3o Biog\u00eanica de Pl\u00e1sticos e Combust\u00edveis"},"content":{"rendered":"<div class=\"mx-lg-5 d-flex justify-content-center align-items-center flex-column flex-lg-row\">\n<div class=\"mx-lg-5\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-content\/uploads\/sites\/7\/2026\/03\/fisica_nuclear_e_a_determinacao_da_fracao_biogenica_de_plasticos_e_combustiveis_01.jpg\" alt=\"\" width=\"300\" height=\"230\"\/><\/div>\n<p class=\"mx-lg-5\">Os testes nucleares ocorridos no s\u00e9culo XX deram origem a uma grande quantidade de carbono 14 que se misturou ao radiois\u00f3topo cosmog\u00eanico presente em toda a biosfera.<br \/>\nO carbono de origem f\u00f3ssil como os pl\u00e1sticos e combust\u00edveis derivados de petr\u00f3leo possui apenas os is\u00f3topos de massas 12 e 13, j\u00e1 que todo o carbono 14 contido j\u00e1 decaiu.<\/p>\n<\/div>\n<div class=\"mx-lg-5 d-flex justify-content-center align-items-center flex-column flex-lg-row\">\n<p class=\"mx-lg-5\">Pl\u00e1sticos e combust\u00edveis de origem biog\u00eanica tem concentra\u00e7\u00e3o de carbono 14 semelhante \u00e0quela da atmosfera contempor\u00e2nea ao plantio da mat\u00e9ria prima.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-content\/uploads\/sites\/7\/2026\/03\/fisica_nuclear_e_a_determinacao_da_fracao_biogenica_de_plasticos_e_combustiveis_02.jpg\" alt=\"\" width=\"300\" height=\"230\" class=\"mx-lg-5\"\/><\/p>\n<\/div>\n<div class=\"mx-lg-5 d-flex justify-content-center align-items-center flex-column\">\n<p class=\"text-center\"><strong>Leia mais sobre esse tema:<\/strong><\/p>\n<p class=\"mx-lg-5\">Jou, R. M., et al. \u201cBiogenic fraction in the synthesis of polyethylene terephthalate.\u201d International Journal of Mass Spectrometry 388 (2015): 65-68. <a href=\"https:\/\/doi.org\/10.1016\/j.ijms.2015.07.011\">https:\/\/doi.org\/10.1016\/j.ijms.2015.07.011<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Os testes nucleares ocorridos no s\u00e9culo XX deram origem a uma grande quantidade de carbono 14 que se misturou ao radiois\u00f3topo cosmog\u00eanico presente em toda a biosfera. O carbono de origem f\u00f3ssil como os pl\u00e1sticos e combust\u00edveis derivados de petr\u00f3leo possui apenas os is\u00f3topos de massas 12 e 13, j\u00e1 que todo o carbono 14 [&hellip;]<\/p>\n","protected":false},"author":149,"featured_media":92,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-163","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/pages\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/users\/149"}],"replies":[{"embeddable":true,"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/comments?post=163"}],"version-history":[{"count":3,"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/pages\/163\/revisions"}],"predecessor-version":[{"id":181,"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/pages\/163\/revisions\/181"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/media\/92"}],"wp:attachment":[{"href":"https:\/\/inct-fna.if.uff.br\/408419-2024-5\/wp-json\/wp\/v2\/media?parent=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}