Literaturnachweis - Detailanzeige
| Autor/inn/en | Bowden, John A.; Nocito, Brian A.; Lowers, Russell H.; Guillette, Louis J., Jr.; Williams, Kathryn R.; Young, Vaneica Y. |
|---|---|
| Titel | Environmental Indicators of Metal Pollution and Emission: An Experiment for the Instrumental Analysis Laboratory |
| Quelle | In: Journal of Chemical Education, 89 (2012) 8, S.1057-1060 (4 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0021-9584 |
| DOI | 10.1021/ed200490y |
| Schlagwörter | Chemistry; Water; Spectroscopy; Fundamental Concepts; College Science; Undergraduate Study; Environmental Education; Pollution; Metallurgy; Fuels; Science Laboratories; Science Instruction |
| Abstract | This experiment enlightens students on the use of environmental indicators and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and demonstrates the ability of these monitoring tools to measure metal deposition in environmental samples (both as a result of lab-simulated and real events). In this two-part study, the initial experiment is designed to simulate the metal pollutants that originate from sparklers (small-scale fireworks). Two environmental indicators, surface water and Spanish moss ("Tillandsia usneoides"), are exposed to a lit sparkler in a closed container. The Spanish moss is subsequently microwave digested, and both samples are analyzed for 16 elements by ICP-AES. In part two, the metal content is analyzed in real samples taken from the environment (topsoil and surface water) surrounding the Kennedy Space Center (KSC) launch pads before and after a shuttle launch. Students learn several fundamental concepts including atomic spectroscopy, biomonitoring, microwave digestion, matrix interferences, matrix-matching, detection limits, and the standard additions method. (Contains 2 tables and 3 figures.) (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 | 2017/4/10 |
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