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Modified carbon nanotube paste electrode for voltammetric determination of carbidopa,folic acid,and tryptophan
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نویسنده
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esfandiari baghbamidi s. ,beitollahi h. ,karimi-maleh h. ,soltani-nejad s. ,soltani-nejad v. ,roodsaz s.
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منبع
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journal of analytical methods in chemistry - 2012 - دوره : 2012 - شماره : 0
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چکیده
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A simple and convenient method is described for voltammetric determination of carbidopa (cd),based on its electrochemical oxidation at a modified multiwall carbon nanotube paste electrode. under optimized conditions,the proposed method exhibited acceptable analytical performances in terms of linearity (over the concentration range from 0.1 to 700.0m),detection limit (65.0nm),and reproducibility (rsd=2.5 ) for a solution containing cd. also,square wave voltammetry (swv) was used for simultaneous determination of cd,folic acid (fa),and tryptophan (trp) at the modified electrode. to further validate its possible application,the method was used for the quantification of cd,fa,and trp in urine samples. copyright 2012 sakineh esfandiari baghbamidi et al.
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آدرس
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islamic azad university,bandar abbas branch, ایران, environment department,research institute of environmental sciences,international center for science,high technology and environmental sciences, ایران, department of chemistry,science and research branch,islamic azad university, ایران, islamic azad university,bandar abbas branch, ایران, department of chemistry,islamic azad university,north tehran branch, ایران, department of chemistry,islamic azad university,north tehran branch, ایران
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Authors
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