1. SPECTROSCOPIC STUDY OF ATMOSPHERIC PRESSURE ARGON/METHANE CAPACITIVELY COUPLED PLASMA. Authors: E. CORDOS, MARIA FRENȚIU, EUGEN DARVASI, ALIN IRONIM MIHĂLŢAN, MICHAELA PONTA, FRENŢIU TIBERIU.2. ESSENTIAL AND TOXIC ELEMENTS IN DIETARY SUPPLEMENTS DETERMINED BY ICP – MS. Authors: CLAUDIA CIMPOIU, TIBERIU FRENTIU, CLAUDIU TĂNĂSELIA, ANCA NAGHIU, ALIN IRONIM MIHĂLŢAN.