Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis in Mexico

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In 1849 Johann Wilhelm Schaffner, a German naturalist trained in Darmstadt and renowned for his botanical contributions arrived in Mexico. Three years later, the famous Mexican chemist Leopoldo Río de la Loza published the first elemental analysis developed in that country, applying it to pipitzahoic acid (perezone). The technique used was published by Justus von Liebig in 1831. However, the application of elemental analysis was not explored again in Mexico until the middle of the twentieth century, pushing back the areas of chemistry that had developed in Europe. Based on historical and historiographic sources, this article explores whether Río de la Loza’s access to Liebig’s elemental analysis technique was via his connection with Schaffner, it discusses the reasons the use of elemental analysis was abandoned in Mexico, and it highlights the lack of recognition of Schaffner’s work.
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Points Interview with Mariana Reynoso and Gabriel Gonzalez-Bravo
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
La síntesis orgánica de medicamentos desplazó a la extracción
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
PDF) Dos publicaciones de la comunidad argentina de naturalistas. Anales y Physis en la época fundacional
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Points Interview with Mariana Reynoso and Gabriel Gonzalez-Bravo
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Points Interview with Mariana Reynoso and Gabriel Gonzalez-Bravo
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Mariana ORTIZ REYNOSO, Universidad Autónoma del Estado de México (UAEM), Toluca, Faculty of Chemistry
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
key-value-MemNN/data/wiki-entities_entity_idx.txt at master · lc222/key-value-MemNN · GitHub
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
ERS International Congress 2017 - Program by Margaritidis Audio Visual - Issuu
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Points Interview with Mariana Reynoso and Gabriel Gonzalez-Bravo
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
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Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Mariana ORTIZ REYNOSO, Universidad Autónoma del Estado de México (UAEM), Toluca, Faculty of Chemistry
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
ERS International Congress 2017 - Program by Margaritidis Audio Visual - Issuu
Johann Wilhelm Schaffner, Leopoldo Río de la Loza, and Elemental Analysis  in Mexico
Catálogo 27º Festival Internacional de Cine de Mar Del Plata (2012), PDF, Cine
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