Second-Year Undergraduates Learn Advanced Quantification and Standardization Methods—Internal Standards and Standard Additions—for GC Analysis Techniques with Real World Applications

• Laxmi Sinduri Vuppala ^[1] ; Timothy Vazquez ^[1] ; Ding Nguyen ^[1] ; Maverick Knowlton ^[1] ; Emily Smith ^[1] ; Theresa Evans-Nguyen ^[1]
  1. [1] University of South Florida

     University of South Florida

     Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 97, Nº 8, 2020, págs. 2260-2264
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Exposure to real-life applications of quantitative analysis techniques based on two gas chromatography (GC) experiments was provided to a large cohort of sophomore-level students. In one experiment, students assessed blood alcohol content by internal standardization using a homemade headspace system similar to methods implemented in forensic laboratories. In a second GC experiment, students found the amount of an odorous terpene present in store-bought essential oils through the technique of standard additions. Students learned the importance of standardization techniques, sample handling, and the use of chromatography in modern analytical applications.