<?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>0121-7488</journal-id>
<journal-title><![CDATA[Ciencia en Desarrollo]]></journal-title>
<abbrev-journal-title><![CDATA[Ciencia en Desarrollo]]></abbrev-journal-title>
<issn>0121-7488</issn>
<publisher>
<publisher-name><![CDATA[Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-74882017000200051</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estandarización de un Método Cromatogràfico para la Identificación del ácido Giberélico en Semillas de Maíz (Zea mays L.)]]></article-title>
<article-title xml:lang="en"><![CDATA[Standardization of a Chromatographic Method for the Identification of Giberelic Acid in Corn Seeds (Zea mays L.)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera]]></surname>
<given-names><![CDATA[Juan David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Correa]]></surname>
<given-names><![CDATA[Yaned Milena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocampo]]></surname>
<given-names><![CDATA[Diana Marcela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Caldas Facultad de Ciencias Exactas y Naturales Grupo de Investigación en Campos Electromagnéticos Medio Ambiente y Salud Pública]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Caldas Facultad de Ciencias Exactas y Naturales rupo de Investigación en Estudios Ambientales en Agua y Suelo]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Caldas Facultad de Ciencias Exactas y Naturales Grupo de Investigación en Cromatografía y Técnicas Afines (GICTA)]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>2</numero>
<fpage>51</fpage>
<lpage>60</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-74882017000200051&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-74882017000200051&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-74882017000200051&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El maíz (Zea mays L.) es uno de los cereales de mayor importancia a nivel mundial por sus múltiples aplicaciones industriales; además, por tener tiempos de germinación cortos, es útil en diversos procesos experimentales. En la búsqueda de nuevas alternativas que aceleren los procesos de germinación de semillas, la estimulación de las fitohormonas es un mecanismo que cada vez presenta más estudios en la literatura con el fin de aumentar la productividad en el sector agrícola en productos de alto consumo como lo son los cereales. Dentro de estas moléculas, el ácido giberélico ha sido empleado de diversas maneras para promover estos procesos. Por esta razón, se hace necesario la implementación de técnicas analíticas que permitan identificar y cuantificar esta fitohormona de manera rápida y eficaz. En este estudio se realizó la estandarización de un método por cromatografía líquida de alta eficiencia con arreglo de diodos para la identificación del ácido giberélico en semillas de maíz germinadas. Las mejores condiciones encontradas para el analito en estudio fueron: fase estacionaria reversa, fase móvil en gradiente de acetonitrilo-ácido fórmico 0.01%, flujo de 0.5 mL min-1, tiempo de corrida de 45.0 min. y longitud de onda de análisis 195 nm. Bajo estos parámetros el ácido giberélico tuvo un tiempo de retención de 16.670 ± 0.050 min. Estos resultados permitieron la identificación apropiada de esta fitohormona y se considera que las condiciones encontradas en este trabajo, podrían adaptarse para la determinación de este analito en otras matrices.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Corn (Zea mays L.) is one of the most important cereal worldwide, because of its multiple industrial applications; besides, by having short germination times, it is useful in experimental processes. In the search of new alternatives that fast up seed germination processes, phytohormone stimulation is a mechanism that increasingly presents more studies in the literature in order to increase productivity in the agricultural sector in high consumption products such as son cereals. Inside these molecules, gibberellic acid is used in several ways to promote these processes. This is why it is necessary to implement analytic techniques that allow the identification and quantification of this phytohormone in a fast and efficient way. In this study, standardization of a method through high performance liquid chromatography with diode array detection for identification of giberellic acid in germinated corn seeds, was made. The best found conditions for the studied analyte were: stationary phase reversed, mobile phase in gradient of acetonitrile formic acid 0.01%, flux 0.5 mL min-1, running time 45.0 min. and analysis wavelength 195 nm. Under these parameters, gibberellic acid had retention time of 16.670 ± 0.050 min. These results allowed the proper identification of this hormone and it is considered that they could be adapted to determine this analyte in other arrays.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fitohormonas]]></kwd>
<kwd lng="es"><![CDATA[germinación]]></kwd>
<kwd lng="es"><![CDATA[HPLC]]></kwd>
<kwd lng="es"><![CDATA[cereales]]></kwd>
<kwd lng="en"><![CDATA[Phytohormones]]></kwd>
<kwd lng="en"><![CDATA[germination]]></kwd>
<kwd lng="en"><![CDATA[HPLC]]></kwd>
<kwd lng="en"><![CDATA[cereals]]></kwd>
</kwd-group>
</article-meta>
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