{"id":89789,"date":"2018-03-10T00:15:04","date_gmt":"2018-03-10T00:15:04","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/determinacion-de-microcontaminantes-organicos-en-aguas-microextraccion-en-fase-solida\/"},"modified":"2018-03-10T00:15:04","modified_gmt":"2018-03-10T00:15:04","slug":"determinacion-de-microcontaminantes-organicos-en-aguas-microextraccion-en-fase-solida","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/determinacion-de-microcontaminantes-organicos-en-aguas-microextraccion-en-fase-solida\/","title":{"rendered":"Determinaci\u00f3n de microcontaminantes org\u00e1nicos en aguas microextracci\u00f3n en fase s\u00f3lida"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ignacio Valor Herencia <\/strong><\/h2>\n<p>La contaminaci\u00f3n del medioambiente y el auga por la presencia de los microcontaminantes org\u00e1nicos, ha ido en aumento en los \u00faltimos diez a\u00f1os. este hecho se debe, al car\u00e1cter t\u00f3xico bioacumulativo de los microcontaminantes org\u00e1nicos, al incremento en la producci\u00f3n a nivel industrial de nuevas sustancias org\u00e1ncias y su inadecuado manejo industrial, agr\u00edcola, etc. y al insufiencte control de los vertidos y su depuraci\u00f3n. Aunque la soluci\u00f3n a la contaminacion de acu\u00edferos debe estar dirigida a evitar los vertidos de estas sustancias de forma incontrolada, desgraciadamente los microcontaminantes org\u00e1ncios acaban incidiendo en el agua. Se hace necesario, por lo tanto, disponer de m\u00e9todos anal\u00edticos multirresiduo r\u00e1pidos y sensibles para el control de estos microcontaminantes en las aguas.  el presente estudio tiene como objeto evaluar la microextracci\u00f3n en fase s\u00f3lida (spme) acoplada a cromatograf\u00eda de gases como t\u00e9cnica de an\u00e1lisis rutinario de microcontaminantes org\u00e1nicos en aguas. Para la consecuci\u00f3n de este objetivo, se seleccionaron los microcontaminantes org\u00e1nicos a estudiar, se revis\u00f3 la bilbiogr\u00e1fica de los m\u00e9todos ya existentes, se estudiaron desde un punto de vista te\u00f3rico y pr\u00e1ctico los factores que influyen en la spme, se calcularon experimentalmente las constantes de distribuci\u00f3n fibra\/agua de un amplio grupo de palguicidas y compuestos relacionados y por \u00fatlimo se validaron m\u00e9todos de determinaci\u00f3n de venceno, tolueno y xilnos (btex) y de plaguicidas y compuestos relacionados.  de los ensayos realizados se obtuvieron las siguientes conclusiones. en la spme, tanto manual como autom\u00e1tica, la agitaci\u00f3n en\u00e9gica de la muestra reduce el tiempo necesario para alcanzar el equilibrio. El empleo de un sistema autom\u00e1tico, permite la extracci\u00f3n de forma controlada y reproducible. la constante de distribuci\u00f3n fibra\/agua (kfw) de cada analito es el par\u00e1metro m\u00e1s importante en la puesta a punto de un m<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Determinaci\u00f3n de microcontaminantes org\u00e1nicos en aguas microextracci\u00f3n en fase s\u00f3lida<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Determinaci\u00f3n de microcontaminantes org\u00e1nicos en aguas microextracci\u00f3n en fase s\u00f3lida <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ignacio Valor Herencia <\/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 17\/04\/2001<\/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>Guillermina Font P\u00e9rez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: george Mahuzier <\/li>\n<li>rosa Marin saez (vocal)<\/li>\n<li>patrice Prognon (vocal)<\/li>\n<li>Alberto Cepeda saez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ignacio Valor Herencia La contaminaci\u00f3n del medioambiente y el auga por la presencia de los microcontaminantes org\u00e1nicos, [&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 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