Applications of ultrasound-assisted electroanalytical techniques

The methods for organio analytes are less common. Thus, sonovoltammetry has been used to determine dopamine in egg homogenate [142] riboflavine [186] and guanine and guanosine in aqueous solutions [188] and ascorbio acid in commercial fruit drinks [189]. The few existing examples testify to the limited applioability of sonovoltammetry to organio analytes. 

Eleotroanalysis in biphasic systems is a scaroely explored area owing to the diffioulty of produoing and maintaining an emulsion without the eieotroohemioai prooess being 

Property Face-on geometry Side-on geometry Ti-sonotrode Pt-sonotrode 

Position of the eiectrode Opposite to the tip Perpendicuiar to the tip The tip is the working eiectrode The tip is the working eiectrode 

Shape of the eiectrode Disc Square Same shape as the tip Disc or square 

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