Modifikasi Elektrode Glassy Carbon Dengan Nanopartikel Emas Dan Aplikasinya Untuk Mendeteksi Kromium(VI) Secara Voltammetri Pulsa Differensial

Santhy Wyantuti, Mahendra Permadi, Diana Hendrati, Yeni Wahyuni Hartati

Abstract


Chromium(VI) is very toxic and has been classified as a carcinogen in humans breathing. Purpose of this experiment is to analyze chromium(VI ) in voltammetry using a glassy carbon electrode modified with gold nanoparticles. Voltammetry method is a method of measuring the current generated from a given potential to the working electrode so that the electrode can be widely modified work. The procedures were produce pencil graphite electrode that was coated by gold nanoparticles and measured chromium(VI) signal. From this study obtained a detection limit of 12.70 ppm and 99.99% precision measurement and measurement of 0.8 V deposition potential, deposition time  of 120 seconds and a scan rate of 0.01 V/s optimum.


Keywords


Glassy carbon electrode; Chromium(VI); Gold nanoparticles; Voltammetry

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References


Bui, M. N., C.A. Li, K.N. Han, X. Pham, G.H. Seong. 2012. Simultaneous detection of ultratrace lead and copper with gold nanoparticles patterned on carbon nanotube thin film. Analyst. 137: 1888–94.

Dai X., R.G. Compton. 2006. Direct electrodeposition of gold nanoparticles onto indium tin oxide film coated glass: Application to the detection of arsenic(III). Anal. Sci. 22: 567–70.

Hong, J., W. Wang, K. Huang, W.-Y. Yang, Y.-X. Zhao, B.-L. Xiao. 2012. A highly efficient nano-cluster artificial peroxidase and its direct electrochemistry on a nano complex modified glassy carbon electrode. Anal. Sci. 28: 711–6.

Jin, W., G. Wu, A. Chen. 2014. Sensitive and selective electrochemical detection of chromium (VI) based on gold nanoparticle-decorated titania nanotube arrays. Analyst. 139: 235–41.

Ly, S. Y. and M. J. Kim. 2009. Diagnostic assay of chromium(VI) in the ex vivo fluid of the urine of a smoker using a fluorine-doped handmade sensor. Journal of Clinical Laboratory Analysis. 23: 82-87.

Li,Y., H. J. Schluesener, S. Xu. 2010. Gold nanoparticle-based biosensors. Gold Bulletin. 43: 29-41.

Saha, K., S. S. Agasti, C. Kim, X. Li, V.M. Rotello. (2012). Gold nanoparticles in chemical and biological sensing. Chem. Rev. 112: 2739–79.

Miller, J. C. and J. N. Miller. (2000). Statistic and Chemometric for Analytical Chemistry. 4th edition. New York:Ellis Hardwood.

Zhao, P., M. Grillaud, L. Salmon, J. Ruiz, D. Astruc. 2012. Click functionalization of gold nanopartcles using the very efficient catalyst copper(I)(Hexabenzyl)tris(2-aminoethyl)-amine bromide. Advance Synthesis & catalysis. 354: 1001-1011.




DOI: https://doi.org/10.24252/al-kimia.v5i1.2844

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