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Analysis of Common Household Cleaner-Disinfectants by Capillary Electrophoresis
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Abstract
The use of capillary electrophoresis (CE) as an analytical technique in research, industrial, and commercial laboratories is growing rapidly. It is therefore very important to expose undergraduate instrumental analysis students to capillary electrophoresis. In this report we describe the CE analysis for benzalkonium compounds in common household cleaners and disinfectants. The surfactant nature of the benzalkonium compounds is the key consideration in performing the analysis, and modifications to the CE running buffer must be performed in order to successfully analyze the products. This experiment also illustrates the importance of (i) using peak areas corrected for variations in migration time to improve accuracy and (ii) using internal standards to improve the precision of capillary electrophoresis results.
Keywords (Audience):
Second-Year UndergraduateKeywords (Domain):
Analytical ChemistryKeywords (Feature):
Topics in Chemical InstrumentationKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
ElectrophoresisCiting Articles
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This article has been cited by 8 ACS Journal articles (5 most recent appear below).
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Saowapak Teerasong and Robert L. McClainJournal of Chemical Education2011 88 (4), 465-467We have developed an undergraduate laboratory activity to introduce students to microfluidics. In the activity, each student constructs their own microfluidic device using simple photolithographic techniques and then uses the device to separate a food dye ...
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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Weak Acid pKa Determination Using Capillary Zone Electrophoresis
Mike SolowJournal of Chemical Education2006 83 (8), 1194Weak Acid pKa Determination Using Capillary Zone Electrophoresis
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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