<?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>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2017000400217</article-id>
<article-id pub-id-type="doi">10.1016/j.eq.2017.05.003</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Remembering qualitative analysis. The 175th Anniversary of Fresenius&#8217; Textbook: Part I]]></article-title>
<article-title xml:lang="es"><![CDATA[Recordando el Análisis Cualitativo. El 175 aniversario del libro de texto de Fresenius: Parte I]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jensen]]></surname>
<given-names><![CDATA[William B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Cincinnati Department of Chemistry ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>USA</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>28</volume>
<numero>4</numero>
<fpage>217</fpage>
<lpage>224</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2017000400217&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2017000400217&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2017000400217&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Part I of this two-part article on the history of the teaching of qualitative analysis to undergraduate chemistry majors covers the origins of the course, its theoretical rationale, the impact of spot analysis and tailored organic reagents, and its transformation from a macro scheme to a semi-micro scheme.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La parte I de este artículo, que comprende dos partes sobre la historia de la enseñanza del análisis cualitativo en las carreras de química, cubre los orígenes del curso, su racionalidad teórica, el impacto de las reacciones a la gota y la búsqueda de reactivos orgánicos apropiados así su transformación de un esquema macro a un esquema semi-micro.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Qualitative analysis]]></kwd>
<kwd lng="en"><![CDATA[History of teaching chemistry]]></kwd>
<kwd lng="en"><![CDATA[Drop reactions]]></kwd>
<kwd lng="es"><![CDATA[Análisis cualitativo]]></kwd>
<kwd lng="es"><![CDATA[Historia de la enseñanza de la química]]></kwd>
<kwd lng="es"><![CDATA[Reacciones a la gota]]></kwd>
</kwd-group>
</article-meta>
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