<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1665-2738</journal-id>
<journal-title><![CDATA[Revista mexicana de ingeniería química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Ing. Quím]]></abbrev-journal-title>
<issn>1665-2738</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Básicas e Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-27382013000100009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Fotodegradación de omeprazol en solución acuosa utilizando TiO2 como catalizador]]></article-title>
<article-title xml:lang="en"><![CDATA[Photodegradation of omeprazole in aqueous solution using TiO2 as catalyst]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luna-Sánchez]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zermeño-Resendiz]]></surname>
<given-names><![CDATA[B.B.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moctezuma]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Bermúdez]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leyva]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Barragán]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Ciencias Químicas Centro de Investigación y Estudios de Posgrado]]></institution>
<addr-line><![CDATA[San Luis Potosí SLP]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Tecnológico de Ciudad Madero División de Estudios de Posgrado ]]></institution>
<addr-line><![CDATA[Madero Tam.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2013</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>85</fpage>
<lpage>95</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-27382013000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-27382013000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-27382013000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En el presente trabajo se estudió la fotodegradación de omeprazol en solución acuosa, este medicamento es el ingrediente activo de varios antiácidos ampliamente usados a nivel mundial. El omeprazol utilizado en los experimentos de degradación se obtuvo mediante el proceso de extracción sólido-líquido a partir de un medicamento comercial. Los experimentos de degradación se llevaron a cabo en un reactor iluminado con lámparas de luz UV de baja energía y se utilizó TiO2 Degussa P25 como catalizador. Los resultados experimentales indican que el compuesto orgánico se degrada fácilmente en un periodo de tiempo muy corto. Sin embargo, el compuesto original no se puede mineralizar en una forma rápida. Al igual que otros compuestos orgánicos, el omeprazol se transforma a otros compuestos orgánicos antes de mineralizarse a CO2 y agua.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this paper we have studied the photodegradation of omeprazole in aqueous solution, this medicament: is the active ingredient in many antacids widely used worldwide. Omeprazole used in the experiments of degradation was obtained by the process of solid-liquid extraction from a generic brand commercial medicament. The degradation experiments were carried out in a reactor illuminated with low energy UV light lamps using TiO2 Degussa P25 as catalyst. The experimental results indicate that the organic compound is easily degraded in a very short period of time. However, the omeprazole mol ecule is not mineralized in a rapid manner. In the same way as other aromatic compounds, omeprazole is transformed to other organic compounds before being mineralized to CO2 and water.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[omeprazol]]></kwd>
<kwd lng="es"><![CDATA[medicamentos]]></kwd>
<kwd lng="es"><![CDATA[fotodegradación]]></kwd>
<kwd lng="es"><![CDATA[fotocatálisis]]></kwd>
<kwd lng="es"><![CDATA[dióxido de titanio (TiO2)]]></kwd>
<kwd lng="en"><![CDATA[omeprazole]]></kwd>
<kwd lng="en"><![CDATA[medicaments]]></kwd>
<kwd lng="en"><![CDATA[photodegradation]]></kwd>
<kwd lng="en"><![CDATA[titanium dioxide (TiO2)]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Cat&aacute;lisis, cin&eacute;tica y reactores</font></p>     <p align="justify">&nbsp;</p>      <p align="center"><font face="verdana" size="4"><b>Fotodegradaci&oacute;n de omeprazol en soluci&oacute;n acuosa utilizando TiO<sub>2</sub> como catalizador</b></font></p>     <p align="center">&nbsp;</p>     <p align="center"><font face="verdana" size="3"><b>Photodegradation of omeprazole in aqueous solution using TiO<sub>2</sub>  as catalyst</b></font></p>     <p align="center">&nbsp;</p>     <p align="center"><font face="verdana" size="2"><b>R.A. Luna&#45;S&aacute;nchez<sup>1</sup>, B.B. Zerme&ntilde;o&#45;Resendiz<sup>1</sup>*, E. Moctezuma<sup>1</sup>, R.E. Contreras&#45;Berm&uacute;dez<sup>2</sup>, E. Leyva<sup>1</sup> y M.A. L&oacute;pez&#45;Barrag&aacute;n<sup>1</sup></b></font></p>     <p align="center">&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Centro de Investigaci&oacute;n y Estudios de Posgrado. FCQ. UASLP. Av. Dr. Manuel Nava. No. 6, Zona Universitaria, C.P. 78210, San Luis Potos&iacute;, SLP, M&eacute;xico. * Autora para la correspondencia. E&#45;mail:</i> <a href="mailto:brenda.zermeno@uaslp.mx">brenda.zermeno&#64;uaslp.mx</a><i> Tel. 52&#45;44&#45;48&#45;26&#45;24&#45;40, Ext.542.</i></font></p> 	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><i><sup>2</sup> Divisi&oacute;n de Estudios de Posgrado del ITCM. J. Rosas y J. Urueta S/N col. Los Mangos, C.P. 89440, Cd. Madero, Tam., M&eacute;xico.</i></font></p>     <p align="justify">&nbsp;</p>      <p align="justify"><font face="verdana" size="2">Recibido 25 de Enero de 2012</font><font face="verdana" size="2">    <br> Aceptado 22 de Noviembre 2012</font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En el presente trabajo se estudi&oacute; la fotodegradaci&oacute;n de omeprazol en soluci&oacute;n acuosa, este medicamento es el ingrediente activo de varios anti&aacute;cidos ampliamente usados a nivel mundial. El omeprazol utilizado en los experimentos de degradaci&oacute;n se obtuvo mediante el proceso de extracci&oacute;n s&oacute;lido&#45;l&iacute;quido a partir de un medicamento comercial. Los experimentos de degradaci&oacute;n se llevaron a cabo en un reactor iluminado con l&aacute;mparas de luz UV de baja energ&iacute;a y se utiliz&oacute; TiO<sub>2</sub> Degussa P25 como catalizador. Los resultados experimentales indican que el compuesto org&aacute;nico se degrada f&aacute;cilmente en un periodo de tiempo muy corto. Sin embargo, el compuesto original no se puede mineralizar en una forma r&aacute;pida. Al igual que otros compuestos org&aacute;nicos, el omeprazol se transforma a otros compuestos org&aacute;nicos antes de mineralizarse a CO<sub>2</sub> y agua.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> omeprazol, medicamentos, fotodegradaci&oacute;n, fotocat&aacute;lisis, di&oacute;xido de titanio (TiO<sub>2</sub>).</font></p>     <p align="justify">&nbsp;</p> 	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>      ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">In this paper we have studied the photodegradation of omeprazole in aqueous solution, this medicament: is the active ingredient in many antacids widely used worldwide. Omeprazole used in the experiments of degradation was obtained by the process of solid&#45;liquid extraction from a generic brand commercial medicament. The degradation experiments were carried out in a reactor illuminated with low energy UV light lamps using TiO<sub>2</sub> Degussa P25 as catalyst. The experimental results indicate that the organic compound is easily degraded in a very short period of time. However, the omeprazole mol	ecule is not mineralized in a rapid manner. In the same way as other aromatic compounds, omeprazole is transformed to other organic compounds before being mineralized to CO<sub>2</sub> and water.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> omeprazole, medicaments, photodegradation, titanium dioxide (TiO<sub>2</sub>).</font></p>  	    <p align="justify">&nbsp;</p> 	    <p align="justify"><font size="2" face="verdana"><a href="/pdf/rmiq/v12n1/v12n1a9.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p> 	    <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Agradecimientos</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Este trabajo de investigaci&oacute;n fue financiado por el CONACYT como parte del proyecto con CB&#45;2008&#45;01&#45;103532 y por la UASLP como parte del proyecto UASLP C11&#45;FRC&#45;09&#45;20&#45;20. Ra&uacute;l Alejandro Luna S&aacute;nchez recibi&oacute; el apoyo econ&oacute;mico por parte de CONACYT mediante la beca No. 265552 para realizar estudios de posgrado.</font></p>  	    <p align="justify"><font face="verdana" size="2">Se agradece en forma especial a la Facultad de Ciencias Qu&iacute;micas de la Universidad Veracruzana campus Poza Rica por las facilidades del uso del CLAR.</font></p>     <p align="justify">&nbsp;</p>      <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>  	    ]]></body>
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