By using the techniques of atomic absorption spectrometry and microwave digesters, they comply with traditional methods for acid digestion, and are used for the development and preparation of samples, in order to obtain the analysis in liquid form.
This action is carried out with acids, to achieve complete oxidation and reduce interference caused by organic matter. Because of these, the determination of the metals is developed, heating it in stages, first, the water is eliminated, the product is carbonized and finally incinerated in a muffle furnace.
Likewise, acid digestion offers development mechanisms, accompanied by chemical components, digestion systems and favorable characteristics, for the determination of metals.