The graphite spray electrode and its application in the anodic stripping voltammetry of bismuth

Electrochemical behaviour of cis-platin at carbon paste and platinum electrodes

The electrochemical behaviour of a platinum(II) anti-tumour drug (cis-platin) has been investigated at the platinised platinum and carbon paste electrodes using cyclic voltammetry. Measurements performed in neutral aqueous media at the platinised platinum electrode as a function of free chloride ions have enabled the nature of oxidised species to be established and the sensitive determination of the molecule within the range of concentration 1 x 10(-3) - 1 x 10(-5) M to be realised. Use of the carbon paste electrode offers interesting insights into the redox stability of the molecule and allows the hydrolytic degradation of cis-platin to be followed as a function of time.

Électrochimie de substances médicamenteuses en utilisant de nouveaux modèles d'électrodes modifiées

The analysis of pharmacologically active compounds using electrochemical techniques with modified electrodes is reviewed. Several physical and chemical methods for the immobilization of materials on to electrodes are available, and the resulting surfaces can be examined microscopically . Examples of these procedures and their analytical applications are given.