Aluminium speciation in natural waters

The presence of aluminium in the form of different species in natural water s receives an increasing attention due to better understanding of its bioav ailability, toxicity and transport mechanism. Recently a number of methods for fractionating of aluminium have been developed. Most of them are operat ionally defined, since the validation of what is really measured in real sa mples is very difficult. This review concerns the specific problems of alum inium speciation analysis and highlights some important methods used for th is purpose.