Apart from additives electrochemical measurement itself can be used for desorption of species. In electrochemical activation a single use of cathodic/anodic potential or train of pulses, may reduce adsorption of fouling agents or remove already attached substances . Electrochemical cleaning can be used to remove adsorbed species through forced oxygen and hydrogen evolution reactions and creation of gas bubbles or etching of the surface in case of carbon fiber microelectrodes . Unfortunately such action can be detrimental in case of surfaces modified with chemical or biological catalyst, resulting in their degradation or physical detachment.