This test is performed to dissolve mineral fractions bond to the grains in the sample.
1 g of dried sample and 20 ml of nitric acid are mixed and later put in the aotoclave where the pressure reach 0,9 bar and 121 °C.
After cooling, the liquid from the samples are put in tubes and sent for ICP-MS analysis.
Inductively Coupled Plasma Mass Spectrometry (ICP-MS) combines high-temperatures ICP (Inductively Coupled Plasma) with a mass spectrometer (MS). The mass spectrometer measures and detects ions from the samples which have been converted from atoms by the ICP. This method is used for elemental determination of samples.