Dipyridine-Containing Macrocyclic Polyamine - Nafion-Modified Screen-Printed Carbon Electrode for Voltammetric Detection of Lead

作者：Bettazzi Francesca; Giorgi Claudia; Laschi Serena; Palchetti Ilaria^*

来源：Electroanalysis, 2012, 24(3): 591-599.

DOI：10.1002/elan.201100581

• Lead
• 5
• 8
• 11-Trimethyl-2
• 5
• 8
• 11
• 14-pentaaza [15]-[15] (2
• 2%26apos
• )[1
• 15]-bipyridylophane
• Nafion
• Screen-printed sensor
• Stripping voltammetry

In this paper, a screen-printed, mercury-free, Nafion modified carbon sensor incorporated with a dipyridine-containing macrocyclic polyamine [5,8,11-trimethyl-2,5,8,11,14-pentaaza [15]-[15] (2,2%26apos;)[1,15]-bipyridylophane (BipyMe3N5)] for voltammetric stripping detection of Pb(II) has been explored. The measurement procedure, consisting of an accumulation step at open circuit condition followed by a medium exchange square wave anodic stripping voltammetry (SWASV), was optimized. Calibration plot of Pb(II) was linear in a concentration range 0-200 mu g/L, with a resulting limit of detection of 2 mu g/L and a relative standard deviation of 14%, for 120 s accumulation time.

• 出版日期2012-3