<?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>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212019000200293</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de tres bioindicadores de contaminación por metales pesados]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of three bioindicators of pollution by heavy metals]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leyte-Vidal]]></surname>
<given-names><![CDATA[Juan J. Piña]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Fernández]]></surname>
<given-names><![CDATA[Lázaro Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Artiles]]></surname>
<given-names><![CDATA[Onibag]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez-Llauger]]></surname>
<given-names><![CDATA[Lázaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Del Cristo]]></surname>
<given-names><![CDATA[Tania Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Potosino de Investigación Científica y Tecnológica A.C., San Luis Potosí División de Geociencias Aplicadas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de La Habana Facultad de Química ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Parque Nacional Península de Guanahacabibes  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Centro de Investigación para la Industria Minero Metalúrgica (CIPIMM) Departamento de Caracterización de Materiales (DCM) ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<numero>2</numero>
<fpage>293</fpage>
<lpage>308</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212019000200293&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212019000200293&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212019000200293&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El incremento del turismo en la costa sur de la Península de Guanahacabibes causa preocupación por su posible impacto negativo sobre este ecosistema marino. En esta zona es común la presencia de las especies Syringodium filiforme, Thalassia testudinum y Sargassum buxifolium, reconocidas como bioindicadores descontaminación para metales pesados. En este trabajo fueron caracterizados estos bioindicadores previo a su empleo en estudios de sorción. La caracterización incluyó análisis por Microscopía Electrónica de Barrido con Energía Dispersiva de Rayos X, Espectroscopía Infrarroja por Transformada de Fourier, Espectrometría Óptica de Emisión con Plasma Acoplado Inductivamente, entre otros. Los resultados obtenidos muestran las potencialidades de estos biomateriales para la bioacumulación de metales pesados. Además, con la caracterización fue posible establecer comparaciones entre los tres bioindicadores, así como seleccionar y respaldar algunos de los posibles mecanismos de unión de los metales pesados a la biomasa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The increase in tourism on the southern coast of the Guanahacabibes Peninsula causes concern about its possible negative impact on this marine ecosystem. In this zone, the presence of the species Syringodium filiforme, Thalassia testudinum and Sargassum buxifolium, recognized, as bioindicators of contamination by heavy metals is common. In this work, these bioindicators were characterized prior to their use in sorption studies. The characterization included analysis by Scanning Electron Microscopy with Dispersive Energy of X-Rays, Infrared Spectroscopy by Fourier Transform, Optical Spectrometry of Emission with Inductively Coupled Plasma, among others. The results obtained show the potential of these biomaterials for the bioaccumulation of heavy metals. In addition, with the results of the characterization, it was possible to establish comparisons between the three bioindicators, as well as to select and support some of the possible mechanisms of binding of heavy metals to biomass.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Península de Guanahacabibes]]></kwd>
<kwd lng="es"><![CDATA[Syringodium filiforme]]></kwd>
<kwd lng="es"><![CDATA[Thalassia testudinum]]></kwd>
<kwd lng="es"><![CDATA[Sargassum buxifolium]]></kwd>
<kwd lng="es"><![CDATA[caracterización]]></kwd>
<kwd lng="en"><![CDATA[Guanahacabibes]]></kwd>
<kwd lng="en"><![CDATA[Syringodium filiforme]]></kwd>
<kwd lng="en"><![CDATA[Thalassia testudinum]]></kwd>
<kwd lng="en"><![CDATA[Sargassum buxifolium]]></kwd>
<kwd lng="en"><![CDATA[characterization]]></kwd>
</kwd-group>
</article-meta>
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