caa a22 4500 445881038 CHVBK 20180317145543.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00604-011-0551-1 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0551-1 Electrochemical behavior of methyl parathion and its sensitive determination at a glassy carbon electrode modified with ordered mesoporous carbon [Elektronische Daten] [Deng Pan, Shumin Ma, Xiangjie Bo, Liping Guo] Ordered mesoporous carbon (OMC) was synthesized and used to modify the surface of a glassy carbon (GC) electrode. Due to the unique properties of OMC, a decrease in the overvoltage of the reduction potential of methyl parathion (MP) (to ca. 219mV) and a 76-fold increase in the peak current are observed (compared with a bare GC electrode). The absorption capacity of the surface of the electrode for MP was determined by chronocoulometry. The results show that the Г value of the modified electrode (2.34 × 10-9molcm-2) is 9.5 times as large as that of the GC electrode (2.47 × 10-10molcm-2). The new electrode exhibits synergistic electrocatalytic and accumulative effects on MP. MP can be determined by linear sweep voltammetry (LSV) which displays a linear relationship between peak current and MP concentration in the range from 0.09 to 61μM, with a detection limit as low as 7.6nM (at an S/N of 3) and after an accumulation at 0V for 5min. The electrode was successfully applied to the determination of MP in spiked lake water samples. Figa A glassy carbon (GC) electrode modified with ordered mesoporous carbon (OMC) performed an enhanced electrocatalytic activity and accumulative effect towards methyl parathion (MP). The electrode also exhibited wider linear range, lower detection limit, better electrochemical stability and utilization for MP determination. Springer-Verlag, 2011 Ordered mesoporous carbon nationallicence Electrochemical catalysis nationallicence Electrochemical analysis nationallicence Methyl parathion nationallicence Pan Deng Faculty of Chemistry, Northeast Normal University, 130024, Changchun, People's Republic of China aut Ma Shumin Jilin Entry-Exit Inspection and Quarantine Bureau, 130062, Changchun, People's Republic of China aut Bo Xiangjie Faculty of Chemistry, Northeast Normal University, 130024, Changchun, People's Republic of China aut Guo Liping Faculty of Chemistry, Northeast Normal University, 130024, Changchun, People's Republic of China aut Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 215-221 0026-3672 173:1-2<215 2011 173 604 https://doi.org/10.1007/s00604-011-0551-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0551-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pan Deng Faculty of Chemistry, Northeast Normal University, 130024, Changchun, People's Republic of China aut NATIONALLICENCE 700 1- Ma Shumin Jilin Entry-Exit Inspection and Quarantine Bureau, 130062, Changchun, People's Republic of China aut NATIONALLICENCE 700 1- Bo Xiangjie Faculty of Chemistry, Northeast Normal University, 130024, Changchun, People's Republic of China aut NATIONALLICENCE 700 1- Guo Liping Faculty of Chemistry, Northeast Normal University, 130024, Changchun, People's Republic of China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 215-221 0026-3672 173:1-2<215 2011 173 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer