Femtomolar detection of mercuric ions using polypyrrole, pectin and graphene nanocomposites modified electrode.
作者： Abraham Daniel Arulraj , Rajkumar Devasenathipathy , Shen-Ming Chen , Vairathevar Sivasamy Vasantha , Sea-Fue Wang
DOI: 10.1016/J.JCIS.2016.08.026
关键词:
摘要: Abstract Several nanomaterials and techniques for the detection of mercuric ions (Hg 2+ ) have been developed in past decade. However, simple, low-cost rapid sensor heavy metal yet remains an important task. Herein, we present a highly sensitive electrochemical femtomolar Hg based on polypyrrole, pectin, graphene (PPy/Pct/GR) which was prepared by one step potentiodyanamic method. The effect concentration polypyrrole were studied . influence experimental parameters including pH, accumulation time potential also studied. Different pulse anodic stripping voltammetry chosen to detect at PPy/Pct/GR/GCE modified electrode. fabricated achieved excellent performance towards such as higher sensitivity 28.64 μA μM −1 very low limit (LOD) 4 fM signal noise ratio 3. LOD our offered nearly 6 orders magnitude lower than that recommended drinking water United States Environmental Protection Agency World Health Organization. Compared all previously reported sensors detection, newly attained practicality proposed successfully demonstrated untreated tap water.
sci-hub.se 参考文章(46)
Elizaveta Alekseeva, Patrycja Bober, Miroslava Trchová, Ivana Šeděnková, Jan Prokeš, Jaroslav Stejskal, The composites of silver with globular or nanotubular polypyrrole: The control of silver content Synthetic Metals. ,vol. 209, pp. 105- 111 ,(2015) , 10.1016/J.SYNTHMET.2015.07.003
Gaurav Bhanjana, Neeraj Dilbaghi, Rajeev Kumar, Sandeep Kumar, Zinc Oxide Quantum Dots as Efficient Electron Mediator for Ultrasensitive and Selective Electrochemical Sensing of Mercury Electrochimica Acta. ,vol. 178, pp. 361- 367 ,(2015) , 10.1016/J.ELECTACTA.2015.07.113
Veerappan Mani, Rajkumar Devasenathipathy, Shen-Ming Chen, Sea-Fue Wang, Parvathy Devi, Yian Tai, None, Electrodeposition of copper nanoparticles using pectin scaffold at graphene nanosheets for electrochemical sensing of glucose and hydrogen peroxide Electrochimica Acta. ,vol. 176, pp. 804- 810 ,(2015) , 10.1016/J.ELECTACTA.2015.07.098
P.K. Sahoo, S. Sahoo, A.K. Satpati, D. Bahadur, Solvothermal synthesis of reduced graphene oxide/Au nanocomposite-modified electrode for the determination of inorganic mercury and electrochemical oxidation of toxic phenolic compounds Electrochimica Acta. ,vol. 180, pp. 1023- 1032 ,(2015) , 10.1016/J.ELECTACTA.2015.09.018
Qiang Chen, Xiaojie Wu, Dingzhong Wang, Wei Tang, Na Li, Feng Liu, Oligonucleotide-functionalized gold nanoparticles-enhanced QCM-D sensor for mercury(II) ions with high sensitivity and tunable dynamic range Analyst. ,vol. 136, pp. 2572- 2577 ,(2011) , 10.1039/C1AN00010A
Liang Ding, Jianping Zhai, Alan M. Bond, Jie Zhang, Polystyrenesulfonate doped poly(Hydroxymethyl 3,4-Ethylenedioxythiophene) stabilized Au nanoparticle modified glassy carbon electrode as a reusable sensor for mercury(II) detection in chloride media Journal of Electroanalytical Chemistry. ,vol. 704, pp. 96- 101 ,(2013) , 10.1016/J.JELECHEM.2013.06.014
Zhi-Qiang Zhao, Xing Chen, Qing Yang, Jin-Huai Liu, Xing-Jiu Huang, Beyond the selective adsorption of polypyrrole-reduced graphene oxide nanocomposite toward Hg2 +: Ultra-sensitive and -selective sensing Pb2 + by stripping voltammetry Electrochemistry Communications. ,vol. 23, pp. 21- 24 ,(2012) , 10.1016/J.ELECOM.2012.06.034
Behzad Rezaei, Malihe Khalili Boroujeni, Ali A. Ensafi, Caffeine electrochemical sensor using imprinted film as recognition element based on polypyrrole, sol-gel, and gold nanoparticles hybrid nanocomposite modified pencil graphite electrode. Biosensors and Bioelectronics. ,vol. 60, pp. 77- 83 ,(2014) , 10.1016/J.BIOS.2014.03.028
Yuan Liao, Qian Li, Na Wang, Shijun Shao, Development of a new electrochemical sensor for determination of Hg(II) based on Bis(indolyl)methane/Mesoporous carbon nanofiber/Nafion/glassy carbon electrode Sensors and Actuators B-chemical. ,vol. 215, pp. 592- 597 ,(2015) , 10.1016/J.SNB.2015.04.006
Haiting Chen, Jianguo Chen, Xianzhong Jin, Danyi Wei, Determination of trace mercury species by high performance liquid chromatography-inductively coupled plasma mass spectrometry after cloud point extraction. Journal of Hazardous Materials. ,vol. 172, pp. 1282- 1287 ,(2009) , 10.1016/J.JHAZMAT.2009.07.134