Zdrojový dokument:Sensing in electroanalysis. K. Kalcher, R. Metelka, I. Švancara, K. Vytřas (Eds.).2011, Volume 6.
Abstrakt:
In this article, possibilities of electrochemical detection of various explosives containing electrochemically active nitro group are reviewed. Attention is paid both to the use of traditional mercury electrodes and non-traditional, recently developed electrodes based on
mercury amalgams, bismuth films, boron-doped diamond films and carbon films in voltammetric and amperometric mode. Screen-printed, chemically modified and/or biologically modified electrodes are discussed as well. Advantages and disadvantages of electroanalytical
techniques are briefly discussed together with their possible combination with a preliminary separation and preconcentration using liquid-liquid extraction or solid phase extraction. Electrochemical detection of reducible explosives in flowing media using above mentioned electrodes is briefly disused, attention being paid to wall-jet, thin-layer, tubular and cylindrical
arrangement of the detection system.