Copper determ ination in drinkin g water by differe ntial pul se voltammetry at a modified carbon paste electrode with magnetic nanoparticles al mond shell

Copper (Cu) is an essential trace elem ent, which is an int egral part of many i mportant enzyme s involved in a number of varied vital biolog ical processes. Howev er in high levels, it become s harmful, in particularly it is hep atotoxic. W ater pollution by heav y metals is causing serious ecological problems[۱] in the w orld, therefore, the determinatio n of heav metals such a s copper i n the environmental samples is needful t oday, and requires a nalytical techniques exhibiting with low detectio n limits for this toxic element[۲]. Different methods have be en used for the determ ination of copper, such as spectro photometr y[۳], electr thermal atomic absorption spectrome try[۴], fla me atomic absorption spectrometry[۵], inductively coupled plasma-m ass spect rometry, and inductively coupled plasma optical e mission spectrometry, mic rowave-induced plasma (MIP)[۶]. Among these method s, electroa nalytical methods are of great importance for the analysis of copper including very small am ount of sample needed, n o prelimin ary complex sample preparation methods, and inex pensive instrument for the analysis, s electivity a nd sensitivity of the vo ltammmetric methods[۷]. The main aim of this study was to develop a simple voltammetric method on the basis of a modifie d carbon p aste electr ode (MCPE ) with ma gnetic nanoparticles c oupled with carbon prepared from almond shell ( MNCA).

کلیدواژه ها:

Copper ، Modified carbon paste electrod e ، Magnetic nanoparticles ، Almo nd shell