Simultaneous Determination of Lead, Copper, and Mercury Free from Macromolecule Contaminants by Square Wave Stripping Voltammetry
作者： Xiaohua Gao , Wanzhi Wei , Liu Yang , Tanji Yin , Ying Wang
DOI: 10.1080/00032710500316423
关键词: Voltammetry 、 Chemistry 、 Colloidal gold 、 Anodic stripping voltammetry 、 Electrode 、 Analytical chemistry 、 Macromolecule 、 Metal ions in aqueous solution 、 Monolayer 、 Square wave
摘要: Abstract A novel approach for the voltammetric determination of Pb2+, Cu2+, and Hg2+ in presence macromolecule contaminants was developed. An Au nanoparticles array directly electrodeposited onto gold electrode surface followed by a further modification mercaptoethanesulfonate (MES) monolayer. Square wave stripping voltammetry (SWSV) performed on doubly modified electrode. The provided significantly improved sensitivity. Simultaneously, MES monolayer efficiently prevented macromolecules accessing surface. Compared with bare electrode, has ability to detect metal ions contaminants, even when their concentration reach 100 ppm. Under optimal conditions, detection limits 0.16, 0.15, 0.14 ppb were obtained, respectively. calibration graphs linear range 1...
sci-hub.se 参考文章(32)
R. Mark Wightman, Mark R. Deakin, Paul M. Kovach, Werner G. Kuhr, Kenneth J. Stutts, Methods to improve electrochemical reversibility at carbon electrodes Journal of The Electrochemical Society. ,vol. 131, pp. 1578- 1583 ,(1984) , 10.1149/1.2115913
Christopher W.K. Chow, Spas D. Kolev, David E. Davey, Dennis E. Mulcahy, Determination of copper in natural waters by batch and oscillating flow injection stripping potentiometry Analytica Chimica Acta. ,vol. 330, pp. 79- 87 ,(1996) , 10.1016/0003-2670(96)00160-2
Oi-Wah Lau, Sing-Yiu Ho, Simultaneous determination of traces of iron, cobalt, nickel, copper, mercury and lead in water by energy-dispersive x-ray fluorescence spectrometry after preconcentration as their piperazino-1,4-bis(dithiocarbamate) complexes Analytica Chimica Acta. ,vol. 280, pp. 269- 277 ,(1993) , 10.1016/0003-2670(93)85131-3
Masanori Fukushima, Hisao Yanagi, Shinji Hayashi, Naotoshi Suganuma, Yoshio Taniguchi, Fabrication of gold nanoparticles and their influence on optical properties of dye-doped sol-gel films Thin Solid Films. ,vol. 438, pp. 39- 43 ,(2003) , 10.1016/S0040-6090(03)00750-8
M. J. D. Brand, Garry A. Rechnitz, Mechanistic studies of ion-selective glass membrane electrodes Analytical Chemistry. ,vol. 41, pp. 1788- 1793 ,(1969) , 10.1021/AC60282A009
Gajanan A. Bhat, Robert A. Saar, Ronald B. Smart, James H. Weber, Titration of soil-derived fulvic acid by copper(II) and measurement of free copper(II) by anodic stripping voltammetry and copper(II) selective electrode Analytical Chemistry. ,vol. 53, pp. 2275- 2280 ,(1981) , 10.1021/AC00237A033
Inna Markovich, Daniel Mandler, Disorganised self-assembled monolayers (SAMs): the incorporation of amphiphilic molecules. Analyst. ,vol. 126, pp. 1850- 1856 ,(2001) , 10.1039/B107068C
Rodrigo A.A Munoz, Lúcio Angnes, Simultaneous determination of copper and lead in ethanol fuel by anodic stripping voltammetry Microchemical Journal. ,vol. 77, pp. 157- 162 ,(2004) , 10.1016/J.MICROC.2004.02.010
Fred C. Anson, Donald J. Barclay, Anion induced adsorption of cadmium(II) on mercury from iodide and bromide media Analytical Chemistry. ,vol. 40, pp. 1791- 1798 ,(1968) , 10.1021/AC60268A021
Andrzej S. Baranski, Tadeusz Krogulec, Lana J. Nelson, Parviz Norouzi, High-Frequency Impedance Spectroscopy of Platinum Ultramicroelectrodes in Flowing Solutions Analytical Chemistry. ,vol. 70, pp. 2895- 2901 ,(1998) , 10.1021/AC9712456