Comparison of Inductively Coupled Plasma with Classical Analytical Techniques in the Analysis of Southern Oregon Lithia Water: Inclusion of a Local Resource in the Undergraduate Chemistry Curriculum |
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| Authors: | Steven C. Petrovic J. C. Clarkson |
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| Affiliation: | 1. Department of Chemistry , Southern Oregon University , Ashland, Oregon, USA petrovis@sou.edu;3. Department of Chemistry , Southern Oregon University , Ashland, Oregon, USA |
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| Abstract: | Abstract Lithia water, a community resource of local historical significance, is described as a central theme in the undergraduate analytical chemistry sequence. A statistical comparison of the classical determination of major cations (Na+, K+, Ca2+, Mg2+) and anions (HCO3 ?, Cl?) reinforces statistical and charge‐balance concepts covered in analytical chemistry. Subsequent determination of these major cations by inductively coupled plasma (ICP) enables students to statistically evaluate the presence of bias between instrumental and classical methods. The effect of easily ionized elements on ICP calibration sensitivity and linearity via the use of cesium as an ionization suppressor is reported. |
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| Keywords: | Community resource ICP‐OES Lithia water quantitative analysis |
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