1. PRELIMINARY INVESTIGATION OF MOCS METEORITE BY LEAD ISOTOPIC RATIO USING QUADRUPOLE INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY. Authors: MARIANA UDRESCU, LEONTIN DAVID, TRAJČE STAFILOV, CECILIA ROMAN, BÉLA ABRAHAM, DANA POP, STANKO ILIK-POPOV, CLAUDIU TĂNĂSELIA.