Modern analytical techniques such as AAS, ICP-AES, ICP-MS and voltammetry are powerful analytical tools for the determination of element concentrations down to sub ng/g. Even lower concentrations of organic substances can be measured with GC or HPLC techniques. To achieve accurate results, these methods require precise and efficient sample preparation. Acid decomposition or solvent extraction is an important link in the analytical chain. Anton Paar has developed and produced instruments for high-performance sample preparation for over 20 years.