caa a22 4500 463220323 CHVBK 20180405153210.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1134/S1061934807050140 doi (NATIONALLICENCE)springer-10.1134/S1061934807050140 Electrochemical detection of copper(II) at a gold electrode modified with a self-assembled monolayer of penicillamine [Elektronische Daten] [L. Niu, H. Luo, N. Li, L. Song] A penicillamine (PCA) self-assembled monolayer (SAM) was prepared on a gold electrode. It has been found that the modified electrode exhibited a selective response to copper ions. As demonstrated by cyclic voltammetric experiments, the SAM-based electrode showed an attractive ability to preconcentrate efficiently traces of copper(II) from solutions. Under optimum conditions, the anodic peak current was proportional to the concentration of Cu(II) in the range from 8.0 × 10−7 to 1.0 × 10−4 M with a detection limit of 4.0 × 10−7 M. Moreover, this modified gold electrode is also characterized by excellent repeatability, showing a relative standard deviation of 3.2% for nine successive measurements of 1.0 × 10−5 M Cu(II). The PCA/Au SAM gold electrode was used for the determination of Cu(II) in a tap water sample and the results showed a good agreement with the data obtained by atomic emission spectrometry. Pleiades Publishing, Ltd., 2007 Niu L. School of Chemistry and Chemical Engineering, Southwest University Chongqing, 400715, China aut Luo H. School of Chemistry and Chemical Engineering, Southwest University Chongqing, 400715, China aut Li N. School of Chemistry and Chemical Engineering, Southwest University Chongqing, 400715, China aut Song L. Shijiazhuang Environmental Protection Bureau, Chang'an District Branch, 050011, Shijiazhuang, China aut Journal of Analytical Chemistry Nauka/Interperiodica 62/5(2007-05-01), 470-474 1061-9348 62:5<470 2007 62 10809 https://doi.org/10.1134/S1061934807050140 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807050140 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Niu L. School of Chemistry and Chemical Engineering, Southwest University Chongqing, 400715, China aut NATIONALLICENCE 700 1- Luo H. School of Chemistry and Chemical Engineering, Southwest University Chongqing, 400715, China aut NATIONALLICENCE 700 1- Li N. School of Chemistry and Chemical Engineering, Southwest University Chongqing, 400715, China aut NATIONALLICENCE 700 1- Song L. Shijiazhuang Environmental Protection Bureau, Chang'an District Branch, 050011, Shijiazhuang, China aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/5(2007-05-01), 470-474 1061-9348 62:5<470 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer