{"id":73023,"date":"2005-04-03T00:00:00","date_gmt":"2005-04-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/empleo-de-las-tecnicas-atomicas-para-el-analisis-multielemental-y-la-especiacion-en-alimentos\/"},"modified":"2005-04-03T00:00:00","modified_gmt":"2005-04-03T00:00:00","slug":"empleo-de-las-tecnicas-atomicas-para-el-analisis-multielemental-y-la-especiacion-en-alimentos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/empleo-de-las-tecnicas-atomicas-para-el-analisis-multielemental-y-la-especiacion-en-alimentos\/","title":{"rendered":"Empleo de las t\u00e9cnicas at\u00f3micas para el an\u00e1lisis multielemental y la especiaci\u00f3n en alimentos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Patricia Cava Montesinos <\/strong><\/h2>\n<p>La principal aportaci\u00f3n de esta tesis ha sido el estudio, desarrollo y comparaci\u00f3n de procedimientos anal\u00edticos, tanto para la determinaci\u00f3n del contenido total de metales y metaloides por espectrometr\u00eda de masas con plasma de acoplamiento inductivo icp-ms en leche comercial, como la extracci\u00f3n de las especies de as, sb, se, te, bi y hg en dos grupos de alimentos: leche y productos de la pesca, utilizando como t\u00e9cnicas de detecci\u00f3n la espectroscopia de fluorescencia at\u00f3mica previa generaci\u00f3n de hidruros hg-afs o por vapor fr\u00edo cv-afs.  se han desarrollado protocolos de an\u00e1lisis r\u00e1pidos y fiables que permiten garantizar la calidad y seguridad alimentaria en alimentos b\u00e1sicos como la leche y el contenido de especies t\u00f3xicas de as y hg en productos de la pesca, alimento que aporta a la dieta uno de los niveles m\u00e1s altos de estos dos metales pesados.  en el dise\u00f1o de protocolos siempre se ha buscado minimizar el tratamiento previo de la muestra, el uso de reactivos menos peligrosos y la m\u00ednima generaci\u00f3n de residuos. Para el an\u00e1lisis de leche se dise\u00f1\u00f3 un procedimiento de digesti\u00f3n asistida por microondas utilizando mezclas de \u00e1cido n\u00edtrico y per\u00f3xido de hidr\u00f3geno, procedimiento que fue adaptado, incluyendo en algunos casos (as, sb, se y te) una etapa previa de reducci\u00f3n para el posterior an\u00e1lisis por hg-afs, previa optimizaci\u00f3n tambi\u00e9n de los par\u00e1metros instrumentales.  como alternativa a la digesti\u00f3n total de las muestras, se desarroll\u00f3 un procedimiento basado en la sonicaci\u00f3n a temperatura ambiente con diferentes extractantes seg\u00fan el tipo de muestra.  los procedimientos anteriores (digesti\u00f3n asistida por microondas y la lixiviaci\u00f3n \u00e1cida) fueron aplicados a la determinaci\u00f3n de 45 elementos (li, al, ti, v, cr, mn, fe, co, ni, cu, zn, as, se, rb, sr, y, mo, ag, cd, in, sn, u, sb, te, cs, ba, hg, pb, bi, th, la, ce, pr, nd, sm, eu, gd, dy, ho, er, tm, yb, lu, hf y ta) en leche por icp-ms con \u00e9xit<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Empleo de las t\u00e9cnicas at\u00f3micas para el an\u00e1lisis multielemental y la especiaci\u00f3n en alimentos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Empleo de las t\u00e9cnicas at\u00f3micas para el an\u00e1lisis multielemental y la especiaci\u00f3n en alimentos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Patricia Cava Montesinos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/03\/2005<\/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>Miguel De La Guardia Cirugeda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: rosa Montoro mart\u00ednez <\/li>\n<li>dario Prada rodriguez (vocal)<\/li>\n<li> Garc\u00eda de torres amparo (vocal)<\/li>\n<li>pilar Vi\u00f1as l\u00f3pez-pelegr\u00edn (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Patricia Cava Montesinos La principal aportaci\u00f3n de esta tesis ha sido el estudio, desarrollo y comparaci\u00f3n de [&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":[2733,28949,17,18],"tags":[2900,12027,11768,158622,49403,12028],"class_list":["post-73023","post","type-post","status-publish","format-standard","hentry","category-espectroscopia-de-emision","category-espectroscopia-de-masas","category-quimica","category-quimica-analitica","tag-dario-prada-rodriguez","tag-garcia-de-torres-amparo","tag-miguel-de-la-guardia-cirugeda","tag-patricia-cava-montesinos","tag-pilar-vinas-lopez-pelegrin","tag-rosa-montoro-Martinez"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/73023","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=73023"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/73023\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=73023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=73023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=73023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}