caa a22 4500 445881194 CHVBK 20180317145544.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00604-011-0616-1 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0616-1 Biosensor based on a glassy carbon electrode modified with tyrosinase immmobilized on multiwalled carbon nanotubes [Elektronische Daten] [Jing Ren, Tian-Fang Kang, Rui Xue, Chao-Nan Ge, Shui-Yuan Cheng] We describe a biosensor for phenolic compounds that is based on a glassy carbon electrode modified with tyrosinase immobilized on multiwalled carbon nanotubes (MWNTs). The MWNTs possess excellent inherent electrical conductivity which enhances the electron transfer rate and results in good electrochemical catalytic activity towards the reduction of benzoquinone produced by enzymatic reaction. The biosensor was characterized by cyclic voltammetry, and the experimental conditions were optimized. The cathodíc current is linearly related to the concentration of the phenols between 0.4μM and 10μM, and the detection limit is 0.2μM. The method was applied to the determination of phenol in water samples. Figure A tyrosinase and carbon nanotubes (MWNTs) modified glassy carbon electrode was fabricated and used for the sensitive detection of phenol. The reduction peak of benzoquinone produced by enzymatic reaction of phenol was greatly enhanced due to the presence of MWNTs(c) Springer-Verlag, 2011 Tyrosinase nationallicence Multiwalled carbon nanotubes nationallicence Electrochemical biosensors nationallicence Phenols nationallicence Ren Jing College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut Kang Tian-Fang College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut Xue Rui College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut Ge Chao-Nan College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut Cheng Shui-Yuan College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 303-309 0026-3672 174:3-4<303 2011 174 604 https://doi.org/10.1007/s00604-011-0616-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0616-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ren Jing College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut NATIONALLICENCE 700 1- Kang Tian-Fang College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut NATIONALLICENCE 700 1- Xue Rui College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut NATIONALLICENCE 700 1- Ge Chao-Nan College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut NATIONALLICENCE 700 1- Cheng Shui-Yuan College of Environmental and Energy Engineering, Beijing University of Technology, 100124, Beijing, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 303-309 0026-3672 174:3-4<303 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer