{"id":82154,"date":"2000-01-01T00:00:00","date_gmt":"2000-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-e-interpretacion-de-los-equilibrios-acido-base-de-acidos-fulvicos\/"},"modified":"2000-01-01T00:00:00","modified_gmt":"2000-01-01T00:00:00","slug":"estudio-e-interpretacion-de-los-equilibrios-acido-base-de-acidos-fulvicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/estudio-e-interpretacion-de-los-equilibrios-acido-base-de-acidos-fulvicos\/","title":{"rendered":"Estudio e interpretacion de los equilibrios acido-base de acidos fulvicos."},"content":{"rendered":"

Tesis doctoral de Rocio Lopez Sanchez <\/strong><\/h2>\n

Este trabajo estba dividido en dos bloques: por una parte la caracterizaci\u00f3n de cuatro muestras de \u00e1cidos f\u00falvicos extra\u00eddos de diferentes suelos gallegos, empleando an\u00e1lisis elemental, espectroscop\u00eda uv-visible y espectroscop\u00eda ir y por otra las propiedades \u00e1cido-base, empleando dos t\u00e9cnicas experimentales: espectroscop\u00eda de fluorescencia (tratamiento de los espectros mediante m\u00e9todos efa) y potenciometr\u00eda. en este \u00faltimo apartado existe una contribuci\u00f3n de dos efectos claramente diferentes: – efecto de la heterogeneidad – efecto electrost\u00e1tico por ello se pueden determinar dos tipos de pka: aparentes o intr\u00ednsecos. se emplearon modelos de distribuci\u00f3n continua para el estudio del efecto de la heterogeneidad y el m\u00e9todos de la \u00abmaster curve\u00bb para el an\u00e1lisis de la contribuci\u00f3n electrost\u00e1tica. para la determinaci\u00f3n cunatitativa de los valores pka tanto aparentes como intr\u00ednsecos se emplearon ecuaciones correspondientes a tres isotermas de adsorci\u00f3n: – lagmuir-freundilch – generalizada de freundilch – t\u00f3th caracterizaci\u00f3n: los resultados indican que los cuatro \u00e1cidos f\u00falvicos no difieren esencialmente de otras muestras de este tipo de sustancias correspondientes a diferentes suelos y zonas clim\u00e1ticas. propiedades \u00e1cido-base: empleando la t\u00e9cnica de fluorescencia se obtienen cuatro tipos de posiciones diferentes en un intervalo de pka aparentes comprendido entre 2.5 y 9.2. Los resultados del estudio potenciom\u00e9trico ponen de manifiesto que el comportamiento experimental se reproduce perfectamente con las tres isotermas considerando tres tipos de posiciones \u00e1cidas diferentes. Las constantes aparentes aumentan al aumentar la fuerza i\u00f3nica. En la determinaci\u00f3n de las constantes intr\u00ednsecas se encontraron diferencias apreciables en cuanto al comportamiento de los cuatro \u00e1cidos f\u00falvicos estudiados. los valores de pka intr\u00ednsecos de las cuatro muestras se encuentran en un<\/p>\n

 <\/p>\n

Datos acad\u00e9micos de la tesis doctoral \u00abEstudio e interpretacion de los equilibrios acido-base de acidos fulvicos.<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio e interpretacion de los equilibrios acido-base de acidos fulvicos. <\/li>\n
  • Autor:<\/strong>\u00a0 Rocio Lopez Sanchez <\/li>\n
  • Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/2000<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • Florencio Arce Vazquez<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: felipe Mac\u00edas v\u00e1zquez <\/li>\n
        • Lopez fonseca Juan Manuel (vocal)<\/li>\n
        • Carballas fernandez m. tarsy (vocal)<\/li>\n
        • Miguel Kaemmerer (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Rocio Lopez Sanchez Este trabajo estba dividido en dos bloques: por una parte la caracterizaci\u00f3n de cuatro […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[27,2498,199,3417,2752,560,977],"tags":[174924,3120,2620,174923,174925,174922],"class_list":["post-82154","post","type-post","status-publish","format-standard","hentry","category-ciencias-de-la-tierra-y-del-espacio","category-edafologia","category-fisica","category-quimica-de-interfases","category-quimica-de-suelos","category-quimica-fisica","category-santiago-de-compostela","tag-carballas-fernandez-m-tarsy","tag-felipe-macias-vazquez","tag-florencio-arce-vazquez","tag-lopez-fonseca-juan-manuel","tag-miguel-kaemmerer","tag-rocio-lopez-sanchez"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/82154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=82154"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/82154\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=82154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=82154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=82154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}