“…ICP-MS measurements were carried out using an Element XSeries II (ThermoFisher Scientic, USA, and the operating conditions used are given in Table 1) and 202 Hg (maximal abundance and without isobaric elements interferences) was selected as the investigating isotope. 5 A Mars Xpress (CEM, USA) microwave oven equipped with a rotor for forty PTFE vessels was used for digestion of gas condensate, and the heating program was performed as described in the literature. 13 A Himac CR22G (Hitachi, Japan) high speed refrigerated centrifuge was also used in the experiments.…”