<?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>0034-7418</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Químico - Farmacéuticas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. cienc. quim. farm.]]></abbrev-journal-title>
<issn>0034-7418</issn>
<publisher>
<publisher-name><![CDATA[Departamento de Farmácia, Facultad de Ciencias, Universidade Nacional da Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74182018000300424</article-id>
<article-id pub-id-type="doi">10.15446/rcciquifa.v47n3.77374</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Validación de una metodología analítica por HPLC-DAD para la cuantificación de ácido benzoico complejado, en un ensayo de permeación transdérmica in vitro empleando piel de cerdo]]></article-title>
<article-title xml:lang="en"><![CDATA[Validation of an analytical methodology by HPLC-DAD for the quantification of complexed benzoic acid, in an in vitro transdermal permeation assay using pig skin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[Laura A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[Jorge A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baena]]></surname>
<given-names><![CDATA[Yolima]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Departamento de Farmacia]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Departamento de Farmacia]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>47</volume>
<numero>3</numero>
<fpage>424</fpage>
<lpage>440</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0034-74182018000300424&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0034-74182018000300424&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0034-74182018000300424&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el presente estudio se realizó la validación de una metodología analítica por cromatografía líquida de alta eficiencia con detector de arreglo de diodos (HPLC-DAD) para la cuantificación del ácido benzoico en complejos polielectrolíticos, obtenidos con Eudragit® E100. Para ello se evaluaron las características de desempeño determinando que la metodología es selectiva; lineal en el rango de concentraciones de 2 a 10 fíg/mL; precisa con un RSD inferior a un 2%; exacta con un porcentaje de recuperación de un 98,7% y se establecieron límites de cuantificación (LOQ) de 0,72 y de 1,56 (g/mL para el sistema y método respectivamente. De acuerdo a estos resultados, la metodología analítica es adecuada para evaluar la permeación in vitro, del ácido benzoico incluido en los complejos polielectrolíticos a través de piel porcina, empleando celdas de Franz.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY This paper presents the studies carried out about the validation of an analytical methodology by high performance liquid chromatography with diode array detector (HPLC-DAD) for the quantification of benzoic acid in polyelectrolyte complexes obtained with Eudragit® E100. Performance characteristics of the methodology were evaluated, finding that this is selective; linear in the concentration range of 2 to 10 (g / mL; accurate with a RSD of less than 2%, exact with a recovery percentage of 98.7% and quantification limits of 0.72 and 1.56 fig / mL were established for the system and method respectively. According with this results, the analytical methodology is adequate to evaluate the in vitro permeation of benzoic acid, in polyelectrolyte complexes, through porcine skin in Franz cells.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Validación]]></kwd>
<kwd lng="es"><![CDATA[ácido benzoico]]></kwd>
<kwd lng="es"><![CDATA[HPLC-DAD]]></kwd>
<kwd lng="es"><![CDATA[permeabilidad]]></kwd>
<kwd lng="es"><![CDATA[piel de cerdo]]></kwd>
<kwd lng="es"><![CDATA[celdas de Franz]]></kwd>
<kwd lng="en"><![CDATA[Vitamin C]]></kwd>
<kwd lng="en"><![CDATA[titrimetry]]></kwd>
<kwd lng="en"><![CDATA[content determination]]></kwd>
<kwd lng="en"><![CDATA[quality control]]></kwd>
</kwd-group>
</article-meta>
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