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Mercury-free analysis of Lead in drinking by anodic stripping square wave voltammetry. 6

By: Cliffel, David E. 4 0 16, [, ] | [, ] |

Contributor(s): 5 6 [] |

Language: Unknown language code Summary language: Unknown language code Original language: Unknown language code Series: ; 46Edition: Description: Content type: text Media type: unmediated Carrier type: volumeISBN: ISSN: 2Other title: 6 []Uniform titles: | | Related works: 1 40 Wilburn, Jeremy P.;Brown, Kyle L. 6 []Subject(s): -- 2 -- 0 -- -- | -- 2 -- 0 -- 6 -- | 2 0 -- | -- -- 20 -- | | -- -- Drinking water - Contamination.;Water - Pollution.;Lead.;Chemistry - Study and teaching.;Chemical laboratories.;Voltammetry. -- -- 20 -- | -- -- -- 20 -- --Genre/Form: -- 2 -- Additional physical formats: DDC classification: | LOC classification: | QD1 .J826ce | 2Other classification:

Contents:

Action note: In: Journal of Chemical Education v. 84 no. 2 (Feb. 2007) pp. 312-314.Summary: Other editions:

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Item type	Current location	Home library	Collection	Call number	Status	Date due	Barcode	Item holds
Book	PLM	PLM Periodicals Section	Periodicals	QD1 (Browse shelf)	Available		PER 1320M

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Previous	QD1 Biodiesel synthesis and evaluation.	QD1 An undergraduate laboratory experiment using a simple photoassisted fuel cell to remediate simulated waste water.	QD1 An undergraduate experiment for the measurement of perfluorinated surfactants in fish liver by liquid chromatography - Tandem mass spectrometry.	QD1 Mercury-free analysis of Lead in drinking by anodic stripping square wave voltammetry.	QD1 A pollutant transformation laboratory exercise for environmental chemistry.	QD1 Synthesis and study of silver nanoparticles.	QD1 Laser-induced fluorescence in gaseous 12 excited with a green laser pointer.	Next

ABSTRACT : The analysis of drinking water for lead, which has well-known adverse health effects, provides an instructive example of the use of analytical chemistry to monitor a common hazard of everyday life. Techniques previously utilized for the electrochemical quantitative analysis of lead in tap water have relied on either elemental mercury or a mercury salt to deposit a mercury-lead amalgam on an electrode surface. Modern analytical teaching labs, however, no longer feature mercury setups and avoid most mercuric compounds owing to the toxicity of mercury. We report a mercury-free analytical method for the analysis of lead in drinking water using square wave anodic stripping voltammetry. Concepts required to successfully complete the experiment include: ppm-ppb concentrations, preparation of standard solutions by serial dilution, construction of a calibration curve, determination of an unknown sample by the standard addition method, and sample matrix effects. 56

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