Voltammetric techniques food additives

The concentration of Cu is usually low in food samples, therefore developing sensitive and selective methods for Cu quantification are required. Among the electrochemical techniques, stripping analysis following adsorption accumulation of Cu chelates has demonstrated high sensitivity however after some time of accumulation, metal and chelates may strongly adsorb on the electrode surface. Most of the authors used the standard addition method not only to minimize the food matrix effects, but also to improve the resolution of the voltammetric technique. An ASV procedure at a platinum rotatory disk electrode without the need of Cu-complex formation has been proposed to determine the Cu content of tequila samples [26]. 

Table 2,4 Applications of voltammetric techniques in the determination of food additives... 

Following this initial introductory chapter, the book is structured in three parts. The first part discusses different Electroanalytical Techniques in Batch and Continuous Systems as highly remarkable tools in the agricultural and food field. In this sense. Chapter 2 deeply explores the sweep potential electroanalytical techniques, while Chapter 3 allows the readers to obtain fundamental information on voltammetric techniques coupled to flow systems which could proportionate faster analysis, reproducible results, high sensitivity, with additional advantages such as the requirement of less sample, and the use of simpler instrumentation. 

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