Quantification of lead in cooking utensils and vegetables using square wave anodic stripping voltammetry
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چکیده
منابع مشابه
Quantification of lead in cooking utensils and vegetables using square wave anodic stripping voltammetry
A simple and sensitive voltammetric method using in-situ bismuth film modified glassy carbon electrode (BiFGE) and Nafion-coated bismuth film modified glassy carbon electrode (NC-BiFGE) were used to determine the amount of lead(II) present in locally produced (at Kombolcha, 376 km North of Addis Ababa, Ethiopia) and imported cooking utensils and vegetable samples before and after cooking with t...
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A mechanistic study to provide diagnostics of anodic stripping electrode processes at bismuth-film electrodes is presented from both theoretical and experimental points of view. Theoretical models for three types of electrode mechanisms are developed under conditions of square-wave voltammetry, combining rigorous modeling based on integral equations and the step function method, resulting in de...
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Determination of trace elements in food is of great importance, as some of them have nutritional significance, whilst others are toxic. Long-term exposure to low levels of toxic metals could be important, especially in relation to children. Differential Pulse Anodic Stripping Voltammetry (DPASV) is applied to simultaneous determination of lead, cadmium, copper and zinc in dry ash infant formula...
متن کاملSimultaneous determination of lead, cadmium, copper and zinc in Infant formula by anodic stripping voltammetry
Determination of trace elements in food is of great importance, as some of them have nutritional significance, whilst others are toxic. Long-term exposure to low levels of toxic metals could be important, especially in relation to children. Differential Pulse Anodic Stripping Voltammetry (DPASV) is applied to simultaneous determination of lead, cadmium, copper and zinc in dry ash infant formula...
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The characterktics of the irldium-based hemkphwkai mercury uitramlcrodectrode (Ha-UME) in conjunction with squarewave anodic stripping voltammetry (SWASV) have been Investigated. Udng Hg-UMEs of 5-10-pn~ radii, samples were analyzed without any added electrolyte, deoxygenatlon, or forced convectlon. The peak stripping currents displayed a linear rdation8hip with d.porltion times varying from 1 ...
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ژورنال
عنوان ژورنال: Heliyon
سال: 2018
ISSN: 2405-8440
DOI: 10.1016/j.heliyon.2018.e00523