Electrochemical determination of tryptophan using a glassy carbon electrode modified with flower-like structured nanocomposite consisting of reduced graphene oxide and SnO2
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- 作者：Yuvaraj HaldoraiaAuthor Vitae ; Sun-Hwa Yeonb ; ys93@kier.re.kr" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Yun Suk Huhc ; yunsuk.huh@inha.ac.kr" class="auth_mail" title="E-mail the corresponding author ; yunsuk.huh@gmail.com" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Young-Kyu Hana ; ykenergy@dongguk.edu" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Tryptophan ; Reduced graphene oxide ; Tin oxide ; Biosensor ; Non-enzymatic
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：239
- 期：Complete
- 页码：1221-1230
- 全文大小：3208 K
文摘
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Hydrothermal synthesis of rGO/SnO2 flower-like nanocomposite.
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Excellent electrocatalytic activity towards the oxidation of tryptophan.
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The low detection limit for tryptophan sensing was identified as 0.04 μM (S/N = 3).
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The sensor showed a high sensitivity of 37.3 μA μM−1 cm−2.
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Excellent selectivity with good stability and reproducibility of the electrode.