科研之友
微信
新浪微博
Facebook
分享链接
摘要
The semi-derivative technique was adopted to improve the resolution and surfactant was added to sample solution to enhance the sensitivity, alpha- and beta-naphthol isomers could be determined directly and simultaneously at glassy carbon electrode modified with carbon nanotubes network joined by Pt nanoparticles. In 0.1 mol L-1 HAc-NaAc buffer solution (pH 5.8) the linear calibration ranges were 1.0 x 10(-6) to 8.0 X 10(-4) mol L-1 for both alpha- and beta-naphthols, with detection limits of 5.0 X 10(-7) for alpha- and 6.0 x 10(-7) mol L-1 for beta-naphthol. The amount of naphthol isomers in artificial wastewater has been tested with above method, and the recovery was from 98% to 103%.
