ERIC Number: EJ1159466
Record Type: Journal
Publication Date: 2017-Oct
Abstractor: As Provided
Laser-Induced Breakdown Spectroscopy for Qualitative Analysis of Metals in Simulated Martian Soils
Mowry, Curtis; Milofsky, Rob; Collins, William; Pimentel, Adam S.
Journal of Chemical Education, v94 n10 p1507-1511 Oct 2017
This laboratory introduces students to laser-induced breakdown spectroscopy (LIBS) for the analysis of metals in soil and rock samples. LIBS employs a laser-initiated spark to induce electronic excitation of metal atoms. Ensuing atomic emission allows for qualitative and semiquantitative analysis. The students use LIBS to analyze a series of standard samples that contain various elements and construct a table of emission line wavelengths for each element analyzed. Students then identify metals in various soil and rock samples. Students gain valuable experience in qualitative analysis using an important spectroscopic tool, while gaining hands-on experience with a spectrometer employing a high energy laser pulse as an excitation source. The LIBS spectrometer is applicable to upper and lower division chemistry courses and can be used as an effective demonstration tool for students in 5th to 12th grade.
Descriptors: Spectroscopy, Metallurgy, Qualitative Research, Simulation, Astronomy, Hands on Science, Chemistry, Science Laboratories, Lasers, College Science, Demonstrations (Educational), Elementary Secondary Education, Laboratory Experiments
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: firstname.lastname@example.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Sponsor: US Department of Energy
Authoring Institution: N/A
Grant or Contract Numbers: DENA0003525