Method for determination of 35 elements content in various samples with application of microwave digestion and inductively coupled plasma with mass spectrometry (ICP-MS)

Abstract

Inductively coupled plasma with mass spectrometry (ICP-MS) and microwave digestion system were used as working techniques for determining the content of 35 elements (Ag, Al, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hg, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Sb, Se, Sn, Sr, Ti, V and Zn) in varios samples: edible oils, fruits, vegetables and alcoholic beverages. This paper includes optimization and validation of the conditions for  measurement of the elements isotopes in prepared samples. Method validation was done using calculation of the limit of detection and quantification, lineary, measurement range and measurement uncertainty, as well as the accuracy and precision of the measurements. The examined parameters indicated that the method meets the requirements for the intended use.