A New and Facile Strategy for Determination of Lead and Cadmium Using Silver Electrodes Manufactured from Digital Versatile Discs

作者：Cui Wenyu; Fan Lishuang; Geng Lin^*; An Maozhong; Zhang Fujun

来源：Chemical Research in Chinese Universities, 2017, 33(5): 799-803.

DOI：10.1007/s40242-017-7010-4

• Digital versatile disc(DVD)-based Ag electrode
• Ag
• Pb2+
• Cd2+
• Stripping analysis

The use of a digital versatile disc(DVD)-based Ag electrode for the square-wave anodic stripping voltammetric determination of Pb2+ and Cd2+ was described. The effect of r on the stripping analysis of Pb2+ and Cd2+ at Ag electrodes was first studied. I- significantly improved the stripping peaks of both Pb2+ and Cd2+. The square-wave voltammetric stripping response was linear over 5-50 mu g/L for Pb2+ and Cd2+ with a deposition time of 118 s. The detection limits were 0.2 and 2.6 mu g/L for Pb2+ and Cd2+, respectively. The high sensitivity, selectivity, and stability of this DVD-based Ag electrode enabled its practical application for simple, rapid and economical determination of trace levels of Cd2+ and Pb2+ in tap water samples. In addition, detection can be achieved without sample deoxygenation and the electrode can be easily manufactured.

• 出版日期2017-10
• 单位哈尔滨工业大学; 哈尔滨商业大学