Comparação entre métodos de quantificação em cromatografia gasosa: um experimento para cursos de química Comparison of quantification methods in gas chromatography: an experiment for chemistry courses
| Autor: | Carolina Bastos Pereira Ligiero, Lindomar Augusto dos Reis, Gabrieli Lessa Parrilha, Milton Baptista Filho, Maria Cristina Canela |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 32, Iss 5, Pp 1338-1341 (2009) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422009000500043 |
| Popis: | This article describes an experiment designed to teach quantitative determination in gas chromatography (GC) in Organic and Analytical Chemistry practical classes. The experiment consisted of extracting and analyzing eugenol from clove seeds to perform a quantitative approach aimed at comparing results obtained by external and internal calibration procedures. Therefore, this experiment proved to be very effective tool to enhance students awareness on the need to understand different types of calibration in GC and on how to avoid common experimental errors, and to find the best ways to eliminate their interference during the quantitative analysis phase. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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