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Tris(2-Aminoethyl)amine-functionalized Femagnetic nanoparticles as a selective sorbent for separation of silver and gold ions in different pHs
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نویسنده
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lotfi zadeh zhad h.r. ,aboufazeli f. ,sadeghi o. ,amani v. ,najafi e. ,tavassoli n.
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منبع
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journal of chemistry - 2013 - دوره : 2013 - شماره : 0
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چکیده
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The usage of tris(2-aminoethyl)amine-functionalized fenanoparticles as a novel magnetic sorbent for rapid extraction,preconcentration,and determination of trace amounts of silver and gold ions was investigated. the optimum conditions for sample ph,eluent parameters (type,concentration and volume) were obtained. the effect of various cationic interferences on the adsorption of silver and gold was evaluated. the analytical efficiency values of both silver and gold ions were higher than 98.0 in the optimum conditions. the limits of detection (lod) were less than 0.8 and 0.5 ng ml - 1 for silver and gold,respectively. the linear ranges for silver and gold were 1.51000 ng ml - 1 and 1.01000 ng ml - 1 respectively. the maximum capacity of the modified magnetic nanoparticles was more than 97.3 mg g -1 and 167 mg g -1 for silver,and gold ions,respectively. the presented method was used to determine silver and gold ions in real samples. finally,the method accuracy was confirmed by standard reference materials. © 2013 hamid reza lotfi zadeh zhad et al.
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آدرس
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department of chemistry,islamic azad university,shahr-e-rey branch,p.o. box 18735-334, ایران, department of chemistry,islamic azad university,shahr-e-rey branch,p.o. box 18735-334, ایران, department of chemistry,islamic azad university,shahr-e-rey branch,p.o. box 18735-334, ایران, department of chemistry,islamic azad university,shahr-e-rey branch,p.o. box 18735-334, ایران, department of chemistry,islamic azad university,shahr-e-rey branch,p.o. box 18735-334, ایران, department of chemistry,islamic azad university,shahr-e-rey branch,p.o. box 18735-334, ایران
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Authors
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