<?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>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2018000200179</article-id>
<article-id pub-id-type="doi">10.29356/jmcs.v62i2.440</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The Importance of Analytical Chemistry in Environmental Geochemistry Studies in Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Armienta]]></surname>
<given-names><![CDATA[María Aurora]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de Mexico Instituto de Geofísica ]]></institution>
<addr-line><![CDATA[CDMX ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>62</volume>
<numero>2</numero>
<fpage>179</fpage>
<lpage>196</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2018000200179&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2018000200179&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2018000200179&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This review presents environmental geochemistry studies developed in Mexico involving analytical chemistry applied to marine, lake, lagoon, dam, and fluvial sediments, soils, and groundwater over the past 15 years. The paper summarizes the objectives of the research, the analytical methods that were used, the methodologies applied for the interpretation of the results, and the primary findings for the areas and specific substrates that were studied. Although diverse analytical techniques were applied, atomic absorption spectrometry was the primary method of analysis, followed by inductively coupled plasma atomic emission spectroscopy. Studies are widespread in the Mexican territory although some areas are still lacking in information; in addition, most of the country&#8217;s contamination problems have yet to be remediated.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Esta revisión proporciona información acerca de estudios en geoquímica ambiental que involucran a la química analítica que han sido desarrollados en México en sedimentos marinos, lacustres y fluviales, suelos, y agua subterránea en los últimos 15 años. Se informan los objetivos de las investigaciones, los métodos analíticos, la metodología utilizada para interpretar los resultados, y las principales conclusiones para las áreas de estudio y sustratos específicos. Aunque se han aplicado diversos métodos analíticos, el más utilizado ha sido la espectrometría de absorción atómica seguido por la espectroscopía de acoplamiento inductivo con emisión óptica. Se han realizado estudios dispersos en diversas áreas del territorio mexicano, sin embargo, existen zonas carentes de los mismos. Por otro lado, la mayoría de los problemas de contaminación todavía no han sido solucionados.]]></p></abstract>
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<kwd lng="en"><![CDATA[analytical chemistry]]></kwd>
<kwd lng="en"><![CDATA[sediments]]></kwd>
<kwd lng="en"><![CDATA[soils]]></kwd>
<kwd lng="en"><![CDATA[groundwater]]></kwd>
<kwd lng="en"><![CDATA[enrichment factors]]></kwd>
<kwd lng="en"><![CDATA[geoaccumulation index]]></kwd>
<kwd lng="en"><![CDATA[hydrogeochemistry]]></kwd>
<kwd lng="en"><![CDATA[contamination]]></kwd>
<kwd lng="es"><![CDATA[química analítica]]></kwd>
<kwd lng="es"><![CDATA[sedimentos]]></kwd>
<kwd lng="es"><![CDATA[suelos]]></kwd>
<kwd lng="es"><![CDATA[agua subterránea]]></kwd>
<kwd lng="es"><![CDATA[factores de enriquecimiento]]></kwd>
<kwd lng="es"><![CDATA[índice de acumulación]]></kwd>
<kwd lng="es"><![CDATA[hidrogeoquímica]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
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</article-meta>
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