Selective Determination of Nicotinamide Adenine Dinucleotide in the Presence of Ascorbic Acid and Uric Acid at a Long-Length Carbon Nanotube Electrode
Selective Determination of Nicotinamide Adenine Dinucleotide in the Presence of Ascorbic Acid and Uric Acid at a Long-Length Carbon Nanotube Electrode
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DOI：
10.5796/electrochemistry.85.13
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发表时间：
2017-01-01
期刊：
影响因子：
2.5
通讯作者：
Ohsawa, Tatsuya
中科院分区：
文献类型：
--
作者：
Hikichi, Atsushi;Muguruma, Hitoshi;Ohsawa, Tatsuya
研究了在抗坏血酸（AA）和尿酸（UA）存在下，在长多壁碳纳米管（CNT）电极上选择性电化学测定烟酰胺腺嘌呤二核苷酸（NADH）的方法。我们证明了碳纳米管长度对NADH氧化引起的电化学响应的有效性。长碳纳米管为200亩（平均），而正常长度碳纳米管为1亩（平均）。在差分脉冲伏安法中，长碳纳米管电极上NADH、AA和UA引起的电流峰比正常长度电极上的更明显。电化学阻抗谱测试表明，长碳纳米管电极比正常长度的电极形成更好的电子传递网络。在1.2 mM AA存在时，NADH的浓度范围为0.030 ~ 2.0 mM；在0.12 mM UA存在时，NADH的浓度范围为0.059 ~ 2.0 mM。(C)日本电化学学会，版权所有。
Selective electrochemical determination of nicotinamide adenine dinucleotide (NADH) in the presence of ascorbic acid (AA) and uric acid (UA) at a long-length multi-walled carbon nanotube (CNT) electrode is presented. We demonstrate the effectiveness of CNT length toward the electrochemical response due to oxidation of NADH. The long-length CNT is 200 mu m (average), whereas normal-length CNT as a comparison is 1 mu m (average). In differential pulse voltammetry, the current peaks due to NADH, AA, and UA at long-length CNT electrodes were more distinct than those at normal-length electrode. Electrochemical impedance spectroscopy measurements suggested that the long-length CNT electrode formed a better electron transfer network than the normal-length electrode. The performance of selective determination of NADH are concentration range of 0.030-2.0 mM in the presence of 1.2 mM AA, and 0.059-2.0 mM in the presence of 0.12 mM UA. (C) The Electrochemical Society of Japan, All rights reserved.