Electrochemical reaction mechanism of phenacetin at a carboxylated multiwall carbon nanotube modified electrode and its analytical applications
Tóm tắt
A novel type of carboxylated multiwalled carbon nanotube modified electrode(c-MWCNTs/GCE) was constructed and the electrochemical properties of phenacetin(PHE) at it were studied. In a buffer solution of 0.1 mol/L HAc-NaAc(pH=5.3), PHE exhibited a couple of quasi-reversible redox peaks and an anodic peak in the potential range of 0.2–1.2 V at c-MWCNTs/GCE. The peak current was proportional to the concentration of PHE in the range of 4.0×10−6–1.0×10−4 mol/L with a detection limit of 1.0×10−6 mol/L(S/N=3). The c-MWCNTs/GCE showed excellent repeatability and stability and the electrochemical reaction mechanism of PHE was proposed. This method was used to determine the content of PHE in medical tablets and the recovery was determined to be 96.5%–104.2% by means of a standard addition method.
Tài liệu tham khảo
Iijima S., Nature, 1991, 354, 56
Dresselhaus M. S., Dresselhaus G., Eklund P., Science of Fullerenes and Carbon Nanotubes, Academic Press, New York, 1996, 461
Arvinte A., Westermann A. C., Sesay A. M., Virtanen V., Sensor Actuat. B: Chem., 2010, 150, 756
Desai P. B., Srivastava A. K., Sensor Actuat. B: Chem., 2012, 169, 341
Rosa O. M., Ana P., Jordi B., Mireia B., Francisco C., Talanta, 2010, 81, 1593
Guo Y. J., Guo S. J., Fang Y. X., Dong S. J., Electrochim. Acta, 2010, 55, 3927
Zhang J. L., Tan X. C., Zhao D. D., Tan S. W., Huang Z. W., Mi Y., Huang Z. Y., Electrochim. Acta, 2010, 55, 2522
Kankuri E., Solatunturi E., Vapaatalo H., Thromb. Res., 2003, 110, 299
Otsuka M., Powder Technol., 2004, 141, 244
Xu J. L., Huang P., Zhang H., Chin. J. Anal. Chem., 2006, 34, 231
Jan J., Jiří K., Lucia Z. Z., Josef T., J. Pharmaceut. Biomed., 2010, 52, 557
El-Kommos M. E., Emara K. M., Talanta, 1989, 36, 678
Eberhart S. T., Hatzis A., Rothchild R., J. Pharmaceut. Biomed., 1986, 4, 147
Liu X. Z., Liu S. S., Wu J. F., Fang Z. L., Anal. Chim. Acta, 1999, 392, 273
Song Y., Deng Y., Huang D. X., Wen J., Liu Z. G., Li F. M., J. Ethnopharmacol., 2012, 141, 957
Yin H. S., Meng X. M., Xu Z. N., Chen L. J., Ai S. Y., Anal. Methods, 2012, 4, 1445
Bian C. L., Zeng Q. X., Xiong H. Y., Zhang X. H., Wang S. F., Bioelectrochemistry, 2010, 79, 1
Laviron E., J. Electroanal. Chem., 1974, 52, 355
Eslam N. N., Rainer B., Andries P. B., Hjalmar P. P., Analyst, 2011, 136, 5064
Ugo B., Patrick G., Virginie S., Titouan J. L., Véronique F. R., Michel K., Serge A., Illa T., Mohammed B., Anal. Bioanal. Chem., 2013, 405, 5817
Ugo B., Patrick G., Illa T., Mohammed B., Talanta, 2013, 116, 554