Literaturnachweis - Detailanzeige
| Autor/in | Pillay, Letitia |
|---|---|
| Titel | Simple Experiment Assisting Students with Identication of Spectral Interference and Selection Emission Lines for ICP-OES Analysis Using Soil Samples |
| Quelle | In: Journal of Chemical Education, 97 (2020) 5, S.1460-1464 (5 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Zusatzinformation | ORCID (Pillay, Letitia) |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0021-9584 |
| Schlagwörter | Science Experiments; Spectroscopy; Chemistry; Laboratory Experiments; Science Instruction; Metallurgy; College Science; Hands on Science; Undergraduate Students; Soil Science |
| Abstract | Inductively coupled plasma optical emission spectroscopy (ICP-OES) is one of the most commonly used analytical techniques for the measurement of metals in environmental matrices. However, one of the drawbacks of ICP-OES is interference, viz., spectral and nonspectral (due to transport effects) interference. In this simple laboratory experiment, spectral interference during ICP-OES analysis of soil samples was investigated. The role of Fe as an interferent was highlighted upon consideration of the analysis of Co. Students digested serpentine soil samples with acid and quantified the Co using several different emission lines. Since Fe is present at levels several orders of magnitude higher than that of Co, spectral interference occurs at 236.380 nm and at 238.892 nm for the analysis of Co. Using the data and spectral emission plots, students selected the appropriate wavelength for quantification and identified specific interference sources. The learning goals include preparing samples successfully , understanding the criteria to select wavelengths for ICP-OES analysis, and the calculating the metal concentration. The experiment is suitable for senior undergraduate and early postgraduate students in analytical and environmental chemistry courses. (As Provided). |
| Anmerkungen | Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2024/1/01 |
Literaturbeschaffung und Bestandsnachweise in Bibliotheken prüfen
Permalink als QR-Code
Inhalt auf sozialen Plattformen teilen (nur vorhanden, wenn Javascript eingeschaltet ist)
Teile diese Seite:
