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Abstract

The electrochemical behavior of 3,4-Dihydroxybenzoic acid(DHBA)on modified multiply wall carbon nanotubes electrode was investigated by cyclic voltammetry(CV) and square wave voltammetry(SWV).Results show that in 0.1 mol/L HCl solutions the modified carbon nanotube electrode has an obvious electrocatalytic effect on the oxidation and deoxidization of DHBA.The oxidation current of DHBA is linear to it's concentration in the range of 4.0×10~(-6)~1.0×10~(-4) mol/L and 2.0×10~(-4)~8.0×10~(-4)1mol/L with correlation coefficient of 0.9995 and 0.9992.The detection limit is 1.0 ×10~(-6)mol/ L.

Keywords

Multiply wall carbon nanotube, Modified electrode, 3, 4-dihydroxybenzoic acid, Electrochemistry

Publication Date

2005-11-28

Online Available Date

2005-11-28

Revised Date

2005-11-28

Received Date

2005-11-28

References

[1]M C Garc ia-Parrilla,Cam acho M L,Hered ia F J,etal.Separation and identification of phenolic-ac ids inw ine vinegars by HPLC[J].Food Chem.,1994,50(3):313~315.
[2]LoresM,Garic ia C M,Cela R.H igh-perform ance liq-u id chrom atography of phenolic aldehydes w ith h ighlyselective fluorim etric detection by m eans of postcolumnphotochem ical dervatization[J].J.Chrom atogr.A,1994,683(1):31~36.
[3]Franca A,N icola D,Panajotis K,et al.GC-M S Evalu-ation of phenolic compounds in virgin olive oil.J.A gric[J].Food Chem.,1995,43(7):1802~1807.
[4]Cu iHua(崔华),Jiang Hai-yan(姜海燕),M eng Rong(孟荣),et al.F low in jection analysis of 3,4-d i-hydroxybenzoic ac id w ith inh ib ited chem ilum inescentdetection[J].Spectroscopy and Spectral Analysis,1999,19(3):377~379.

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