An analysis method of electrochemiluminescence based on battery as potential-excitated device for determination of ethanol
ZHANG Li, ZHENG Xing-wang*
(College of Chemistry and Materials Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
The electrochemiluminescence (ECL) signal of luminol in alkaline medium was observed and could be enhanced by ethanol in case of a battery instead of electrolysis instrument. Based on this result, a new electrochemiluminescence method was developed for determination of ethanol. The results showed that ethanol could be determined in aqueous ammonia with better electrochemiluminescence reversibility and reproductivity while battery was used instead of electrolysis instrument. The detection limit of the method was 3.0×10-6 g/mL, the linear range for ethanol determination was 3.0×10-5～9.0×10-3 g/mL,and the relative standard deviation was 2.3% (n=9)．
KeyWords:
battery; microminaturization; ethanol; electrochemiluminescence; luminol
