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Quantitative Analysis of Non-UV-Absorbing Cations in Soil Samples by High-Performance Capillary Electrophoresis. An Experiment for Undergraduate Instrumental Analysis Laboratory
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Abstract
Cations such as Ca2+, Mg2+, K+, NH4+, Na+, Mn2+, and Zn2+ are very important in soil even though some of them are present in low concentrations. Plants, to grow well, must be planted in soil with cations in sufficient quantities and proper ratios. The number of cations and the variability of their concentrations in soils may make soil too complex for quantitative analysis by traditional methods. We describe a high-performance capillary electrophoresis (HPCE) experiment for quantitative analysis of cations in soil samples. The method is economical and fast, and is potentially applicable to normal soil analysis. Since HPCE is a useful and modern technique, it is necessary that undergraduate students in chemistry learn to use it. This experiment is designed as a one- or two-week laboratory experiment in Instrumental Analysis. It has been performed in the laboratory at Truman State University for two years, and students have obtained excellent results.
Keywords (Domain):
Analytical ChemistryKeywords (Subject):
ElectrophoresisCiting Articles
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This article has been cited by 10 ACS Journal articles (5 most recent appear below).
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Capillary Electrophoresis: Focus on Undergraduate Laboratory Experiments
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Lisa A. HollandJournal of Chemical Education2011 88 (3), 254-256Capillary electrophoresis is a versatile technique well suited to teach concepts that are fundamental to a chemistry degree program. The applicability of capillary electrophoresis to metabolites, DNA, proteins, pharmaceutical compounds, environmental ...
An Inexpensive Device for Capillary Electrophoresis with Fluorescence Detection
Jonathan E. Thompson and Khriesto Shurrush , Greg AndersonJournal of Chemical Education2006 83 (11), 1677An Inexpensive Device for Capillary Electrophoresis with Fluorescence Detection
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Mike SolowJournal of Chemical Education2006 83 (8), 1194This article describes a general chemistry experiment designed to measure the pKa of benzoic acid using capillary zone electrophoresis. Despite the fact that modern biology relies so heavily on this analytical technique, students get very little ...
Capillary Electrophoresis Analysis of Substituted Benzoic Acids. An Experiment for the Organic Synthesis Laboratory
Nancy S. Mills , John D. Spence and Michelle M. BusheyJournal of Chemical Education2005 82 (8), 1226Capillary Electrophoresis Analysis of Substituted Benzoic Acids. An Experiment for the Organic Synthesis Laboratory
Nancy S. Mills , John D. Spence and Michelle M. BusheyJournal of Chemical Education2005 82 (8), 1226Capillary electrophoresis is gradually working its way into the undergraduate laboratory curriculum. Typically, experiments utilizing this technology have been introduced into analytical or instrumental courses. We have introduced an experiment into the ...
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- Received: August 03, 2009
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