by assigned concentration of Cd(II)in the sample matrix, are shown
in Table 2.
4. Conclusions
A novel technique for the fabrication of Bi–Sb composite film
electrode, which was prepared in situ on a glassy carbon substrate
electrode, was demonstrated. The application of the Bi–SbFE for
measuring trace cadmium(II) was developed. The Bi–SbFE revealed
better electroanalytical performance than the bismuth film or antimony
film electrodes. Due to the early stage of our investigations,
it is inevitable to conduct further work oriented toward the study
of the application of the Bi–SbFE to other potentially interesting
inorganic and organic analytes.
Acknowledgements
This work was supported by the National Natural Science Foundation
of China (No. 20975083), the Municipal Science Foundation
of Chongqing City (No. CSTC-2008BB 4012), and the 211 Project of
Southwest University (the Third Term).