<?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>0124-2253</journal-id>
<journal-title><![CDATA[Revista científica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Cient.]]></abbrev-journal-title>
<issn>0124-2253</issn>
<publisher>
<publisher-name><![CDATA[Universidad Distrital Francisco José de Caldas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0124-22532023000100122</article-id>
<article-id pub-id-type="doi">10.14483/23448350.19427</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desarrollo de un método analítico por cromatografía iónica para la cuantificación de aniones en aguas residuales de origen minero]]></article-title>
<article-title xml:lang="en"><![CDATA[Development of an Analytical Method by Ion Chromatography for the Quantification of Anions in Wastewater of Mining Origin]]></article-title>
<article-title xml:lang="pt"><![CDATA[Desenvolvimento de método analítico por cromatografia de íons para quantificação de ânions em águas residuais de origem mineira]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardona-Castaño]]></surname>
<given-names><![CDATA[Julio-Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Giraldo]]></surname>
<given-names><![CDATA[Juan-David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-Vallejo]]></surname>
<given-names><![CDATA[Fernando-Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Caldas  ]]></institution>
<addr-line><![CDATA[Manizales Caldas]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Caldas  ]]></institution>
<addr-line><![CDATA[Manizales Caldas]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Caldas  ]]></institution>
<addr-line><![CDATA[Manizales Caldas]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<numero>46</numero>
<fpage>122</fpage>
<lpage>133</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0124-22532023000100122&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0124-22532023000100122&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0124-22532023000100122&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo de este trabajo fue desarrollar un método por cromatografía iónica con detector de conductividad para la determinación simultánea de tiocianato en aguas residuales mineras y aniones como bromuro, cloruro, fluoruro, fosfato, nitrito, nitrato y sulfato. Como eluente se utilizó hidróxido de potasio (KOH) en un rango de concentraciones entre 20,0 y 27,0 mM , flujos entre 0,4 y 1,2 mL min-1 y corriente del supresor entre 50,0 y 70,0 mA. Se determinó que la mejor separación de las especies estudiadas se logró con una concentración de KOH de 21,9 mM en modo isocrático y un flujo de 1,0 mL min-1 en una columna analítica AS20. Además, se determinó una serie de parámetros analíticos como sensibilidad, linealidad, precisión, exactitud y límites de detección y cuantificación que permiten la validación del método analítico. Se obtuvieron valores de desviación estándar relativa (RSD) menores al 20 % en cuanto a la precisión del método analítico, con recuperaciones mayores al 96 %. El método desarrollado es por lo tanto adecuado para la determinación de tiocianato y aniones en aguas residuales de origen minero.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of this work was to develop a method by ion chromatography with conductivity detector for the simultaneous determination of thiocyanate in mining wastewater and anions such as bromide, chloride, fluoride, phosphate, nitrite, nitrate and sulfate. Potassium hydroxide (KOH) was used as an eluent in a range of concentrations between 20,0 y 27,0 mM, flows between 0,4 y 1,2 mL min-1 and suppressor current between 50,0 y 70,0 mA. It was determined that the best separation of the species was achieved with a KOH concentration of 21,9 mM in isocratic mode and a flow of 1,0 mL min-1 in an AS20 analytical column. In addition, a series of analytical parameters such as sensitivity, linearity, precision, accuracy and limits of detection and quantification were determined that allow the validation of the analytical method. Relative standard deviation (RSD) values of less than 20 % were obtained in terms of the accuracy of the analytical method, with recoveries greater than 96 %. The method developed is therefore suitable for the determination of thiocyanate and anions in wastewater of mining origin.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O objetivo deste trabalho foi desenvolver um método por cromatografia de íon com detector de condutividade para a determinação simultânea de tiocianato em águas residuais de mineração e ânions como brometo, cloreto, flúor, fosfato, nitrito, nitrato e sulfato. O hidróxido de potássio (KOH) foi usado como eluente em uma faixa de concentrações entre 20,0 y 27,0 mM, flui entre 0,4 y 1,2 mL min-1 e corrente supressora entre 50,0 y 70,0 mA. Foi determinado que a melhor separação da espécie foi alcançada com uma concentração KOH de 21,9 mM em modo isocrático e um fluxo de 1,0 mL min-1 em uma coluna analítica AS20. Além disso, foram determinados uma série de parâmetros analíticos como sensibilidade, linearidade, precisão, precisão e limites de detecção e quantificação que permitem a validação do método analítico. Valores de desvio padrão relativo (RSD) inferiores a 20 % foram obtidos em termos de precisão do método analítico, com recuperações superiores a 96 %. O método desenvolvido é, portanto, adequado para a determinação de tiocianato e ânions em águas residuais de origem mineira.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[aguas residuales]]></kwd>
<kwd lng="es"><![CDATA[cromatografía iónica]]></kwd>
<kwd lng="es"><![CDATA[minería]]></kwd>
<kwd lng="es"><![CDATA[sensibilidad]]></kwd>
<kwd lng="es"><![CDATA[tiocianato]]></kwd>
<kwd lng="es"><![CDATA[validación.]]></kwd>
<kwd lng="en"><![CDATA[ion chromatography]]></kwd>
<kwd lng="en"><![CDATA[mining]]></kwd>
<kwd lng="en"><![CDATA[sensitivity]]></kwd>
<kwd lng="en"><![CDATA[thiocyanate]]></kwd>
<kwd lng="en"><![CDATA[validation]]></kwd>
<kwd lng="en"><![CDATA[wastewater.]]></kwd>
<kwd lng="pt"><![CDATA[águas residuais]]></kwd>
<kwd lng="pt"><![CDATA[cromatografia de íons]]></kwd>
<kwd lng="pt"><![CDATA[mineração]]></kwd>
<kwd lng="pt"><![CDATA[sensibilidade]]></kwd>
<kwd lng="pt"><![CDATA[tiocianato]]></kwd>
<kwd lng="pt"><![CDATA[validação]]></kwd>
</kwd-group>
</article-meta>
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