Introducing ATR-FTIR Spectroscopy through Analysis of Acetaminophen Drugs: Practical Lessons for Interdisciplinary and Progressive Learning for Undergraduate Students

Autor: Carmen García-Ruiz, Gemma Montalvo, Félix Zapata, Gloria Quintanilla, Fernando Ortega-Ojeda, Adrián López-Fernández
Přispěvatelé: Universidad de Alcalá. Departamento de Física y Matemáticas, Universidad de Alcalá. Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá. Departamento de Química Orgánica y Química Inorgánica
Rok vydání: 2020
Předmět:
Zdroj: e_Buah Biblioteca Digital Universidad de Alcalá
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ISSN: 0021-9584
Popis: Infrared (IR) spectroscopy is a vibrational spectroscopic technique useful in chemical, pharmaceutical, and forensic sciences. It is essential to identify chemicals for reasons spanning from scientific research and academic practices to quality control in companies. However, in some university degrees, graduate students do not get the proficiency to optimize the experimental parameters to obtain the best IR spectra; to correlate the IR spectral bands with the molecular vibrations (chemical elucidation); to have some criteria for any substance identification (especially relevant in quality control to recognize counterfeit); and to apply chemometrics for comparing, visualizing, and classifying the IR spectra. This work presents an experimental laboratory practice for an introductory teaching of the IR instrumental conditions in the identification of substances based on visual spectra comparison and statistical analysis and matching. Then, the selected IR conditions are applied to different commercial drugs, in the solid state or insolution, mostly composed of acetaminophen. Finally, the students apply chemometrics analysis to the IR data. This practice was designed for the training in a chemistry subject for undergraduate students of the chemistry, pharmacy, or forensics degrees, among others related to science, medical, food, or technological sciences.
Instituto Universitario de Investigación en Ciencias Policiales (IUICP)
Databáze: OpenAIRE