<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992016000300293</article-id>
<article-id pub-id-type="doi">10.20937/RICA.2016.32.03.04</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Determinación simultánea de cationes mayoritarios en muestras de agua residual por medio de cromatografía de iones con detección conductimétrica]]></article-title>
<article-title xml:lang="en"><![CDATA[Simultaneous determination of main cations in wastewater samples by ion chromatography with conductivity detection]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamora Martínez]]></surname>
<given-names><![CDATA[Olivia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montaño Hilario]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galindo Zavala]]></surname>
<given-names><![CDATA[Viviana Berenice]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Siebe Grabach]]></surname>
<given-names><![CDATA[Christina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Prado Pano]]></surname>
<given-names><![CDATA[Blanca Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geología Departamento de Edafología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<volume>32</volume>
<numero>3</numero>
<fpage>293</fpage>
<lpage>301</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992016000300293&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992016000300293&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992016000300293&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: Se desarrolló y validó una metodología para la determinación y cuantificación simultánea de cinco cationes empleando la técnica de cromatografía de iones (CI) con detección conductimétrica, con la cual fue posible monitorear el contenido de sodio, amonio, potasio, calcio y magnesio, en muestras de agua residual provenientes del Valle del Mezquital (Hidalgo, México), aun cuando éstas contenían altas concentraciones de sodio, principal interferente del ion amonio al utilizarse esta técnica, debido a que ambos cationes presentan tiempos de retención muy cercanos. Los niveles de concentración para la cuantificación de los cinco analitos van desde valores cercanos a una parte por millón hasta 100 mg/L, con bajos límites de detección (&lt; 0.6 mg/L), valores de precisión aceptables (% desviación estándar relativa &lt; 3.0) y porcentajes de exactitud muy cercanos al 100 % (98.0 - 114.5 %), así como ausencia de otras interferencias.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: A methodology for the identification and simultaneous quantification of five cations using ion chromatography (IC) with conductivity detection was developed and vali-dated. The method allows to monitor the content of sodium, ammonium, potassium, calcium and magnesium in wastewater samples from the Valle del Mezquital (Hidalgo, Mexico), despite that these contain high concentrations of sodium, main interfering ion for the quantification of ammonium, since both cations have very close retention times. Concentration levels achieved for quantification of the five analytes are between 1 to 100 mg/L, with low detection limits (&lt; 0.6 mg/L), good precision (% relative standard deviation &lt; 3.0) and accuracy (between 98.0-114.5 %), as well as the absence of any interference.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[monitoreo ambiental]]></kwd>
<kwd lng="es"><![CDATA[validación analítica]]></kwd>
<kwd lng="es"><![CDATA[Valle del Mezquital]]></kwd>
<kwd lng="es"><![CDATA[reuso agrícola]]></kwd>
<kwd lng="en"><![CDATA[environmental monitoring]]></kwd>
<kwd lng="en"><![CDATA[analytical validation]]></kwd>
<kwd lng="en"><![CDATA[Valle del Mezquital]]></kwd>
<kwd lng="en"><![CDATA[agricultural reuse]]></kwd>
</kwd-group>
</article-meta>
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