Stripping voltammetric determination of Cd(Ⅱ)based on multiwalled carbon nanotube functionalized with 1-(2-pyridylazo)-2-naphthol  

作　　者：Alireza Mohadesi Hadi Beitollahi Mohammad Ali Karimi 

机构地区：[1]Department of Chemistry,Payame Noor University,Tehran 19395-4697,Iran [2]Department of Chemistry,Payame Noor University(PNU),P.O.Box 76175-559,Kerman,Iran [3]Environmental Department,Research Institute of Environmental Sciences,International Center for Sciences,High Technology and Environmental Sciences,Kerman,Iran [4]Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory(NNRL),Payame Noor University(PNU),Sirjan,Iran

出　　处：《Chinese Chemical Letters》2011年第12期1469-1472,共4页中国化学快报（英文版）

摘　　要：The present work has focused on the modification of multiwalled carbon nanotube with a ligand,l-（2-pyridylazo）-2-naphthol, and its potential application for the development of a new,simple and selective modified glassy carbon electrode for stripping voltammetric determination of Cd（Ⅱ）.The analytical curve for Cd（Ⅱ） ions covered the linear range varying from 0.8 up to 220.4μgL^（-1）.The limit of detection was found to be 0.1μgL^（-1）,while the relative standard deviation（RSD） at 50.0μgL^（-1） was 1.8%（n=5）.This modified electrode was successfully applied for determination of Cd（Ⅱ） in some water samples.The present work has focused on the modification of multiwalled carbon nanotube with a ligand,l-（2-pyridylazo）-2-naphthol, and its potential application for the development of a new,simple and selective modified glassy carbon electrode for stripping voltammetric determination of Cd（Ⅱ）.The analytical curve for Cd（Ⅱ） ions covered the linear range varying from 0.8 up to 220.4μgL^（-1）.The limit of detection was found to be 0.1μgL^（-1）,while the relative standard deviation（RSD） at 50.0μgL^（-1） was 1.8%（n=5）.This modified electrode was successfully applied for determination of Cd（Ⅱ） in some water samples.

关 键 词：Multiwalled carbon nanotube 1-（2-Pyridylazo）-2-naphthol Cadmium（Ⅱ） Stripping voltammetry 

分 类 号：X832[环境科学与工程—环境工程]