{"id":137777,"date":"2026-01-12T17:08:13","date_gmt":"2026-01-12T17:08:13","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/metodos-de-determinacion-del-selenio-y-el-arsenico-en-aguas-y-soluciones-acuosas-por-espectrometria-de-fluorescencia-de-rayos-x\/"},"modified":"2026-01-12T17:08:13","modified_gmt":"2026-01-12T17:08:13","slug":"metodos-de-determinacion-del-selenio-y-el-arsenico-en-aguas-y-soluciones-acuosas-por-espectrometria-de-fluorescencia-de-rayos-x","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/metodos-de-determinacion-del-selenio-y-el-arsenico-en-aguas-y-soluciones-acuosas-por-espectrometria-de-fluorescencia-de-rayos-x\/","title":{"rendered":"Metodos de determinacion del selenio y el arsenico en aguas y soluciones acuosas por espectrometria de fluorescencia de rayos x"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Castilla Cortazar M. Isabel <\/strong><\/h2>\n<p>Se han puesto a punto 2 metodos de preconcentracion para el selenio (con acido pirrolidin ditiocarboxilico y por absorcion con carbon activado) y 2 para el arsenico (con oxido de hierro hidratado y dibencilditiocarbamato sodico), y se ha comprobado su eficacia en el analisis espectrometrico por fluorescencia de rayos x (wd), estudiando 3 tipos de muestras reales: agua natural, suelos y hojas de melocotonero, en el rango de 0 a 2 ppm.  en las experiencias realizadas se ha estudiado, en el analisis por fluorescencia de rayos x, una tecnica de separacion del as(iii) y el as(v) con la que se consigue una coprecipitacion secuencial de este elemento, separando ambas Valencias; esto es de gran interes dado que el as(iii) es apreciablemente mas toxico que el as(v). Los resultados corroboran los que van elteren y de ligny obtuvieron con el analisis por activacion neutronica de muestras de aguas, en 1989. Estos metodos estudiados presentan la ventaja de sus multiples aplicaciones en estudios ecologicos de aguas, cultivos y suelos, asi como en farmacolog\u00eda para el estudio de medicamentos e incluso en biolog\u00eda y medicina en el analisis de estos elementos en tejidos vivos, siempre y cuando la preparacion de muestras sea en solucion acuosa.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Metodos de determinacion del selenio y el arsenico en aguas y soluciones acuosas por espectrometria de fluorescencia de rayos x<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Metodos de determinacion del selenio y el arsenico en aguas y soluciones acuosas por espectrometria de fluorescencia de rayos x <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Castilla Cortazar M. Isabel <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1991<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Llopis Cosin Juan  Vicente<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jaime Llinares Galiana <\/li>\n<li>Jos\u00e9 Esp\u00ed L\u00f3pez (vocal)<\/li>\n<li>Mar\u00eda no Aguilar Rico (vocal)<\/li>\n<li>Francisco Sanz Ruiz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Castilla Cortazar M. Isabel Se han puesto a punto 2 metodos de preconcentracion para el selenio (con [&hellip;]<\/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":[987,199,16820,56920],"tags":[252331,97788,11530,11529,49597,16909],"class_list":["post-137777","post","type-post","status-publish","format-standard","hentry","category-electromagnetismo","category-fisica","category-politecnica-de-valencia","category-rayos-x","tag-castilla-cortazar-m-isabel","tag-francisco-sanz-ruiz","tag-jaime-llinares-galiana","tag-jose-espi-lopez","tag-llopis-cosin-juan-vicente","tag-maria-no-aguilar-rico"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/137777","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=137777"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/137777\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=137777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=137777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=137777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}