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Simultaneous Determination of Dopamine, Ascorbic Acid and Uric Acid at Poly (Crystal Violet) Modified Carbon Paste Electrode
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نویسنده
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Shankar S. Sharath ,Kumara Swamy E. Bahaddurghatta ,Chandra Umesh ,Sherigara S. Bailure
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منبع
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analytical and bioanalytical electrochemistry - 2011 - دوره : 3 - شماره : 5 - صفحه:462 -477
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چکیده
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A sensitive and selective electrochemical method for the determination ofdopamine (da) using a crystal violet polymer film modified on carbon paste electrode wasdeveloped. the crystal violet polymer film modified electrode poly (crystal violet) mcpeshows excellent electrocatalytic activity towards the oxidation of da in phosphate buffersolution (ph 7.4). the separation of the oxidation peak potentials for dopamine–ascorbic acid(aa) and dopamine–uric acid (ua) were about 182 mv and 180 mv, respectively. thedifferences are large enough to determine aa, da and ua individually and simultaneously.this modified electrode shows very good selectivity, sensitivity, stability and antifoulingproperty.
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کلیدواژه
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Poly (Crystal Violet) Modified Electrode ,Simultaneous ,Dopamine ,Uric Acid ,Ascorbic Acid
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آدرس
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Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta-577 451, Karnataka, India, India, Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta-577 451, Karnataka, India, India, Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta-577 451, Karnataka, India, India, Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta-577 451, Karnataka, India, India
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Authors
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