1. METASTABLE ION STUDIES IN THE CHARACTERISATION OF SOME P-X SUBSTITUTED ARYLSULFONAMIDESOF THE O,O-DIPHENYLTHIOPHOSPHORIC ACID. Authors: SIMONA NICOARĂ, Z. MOLDOVAN, N. PALIBRODA, M. CULEA, I. FENESAN, R. POPESCU, C. BELE.2. UPGRADING OF THE HP-5985A QUADRUPOLE MASS SPECTROMETER. Authors: N. LUPŞA, V. MIREL, A. PAMULA, N. PALIBRODA, ALINA N. NICA.3. SAMPLING AND IDENTIFICATION OF VOLATILE AND PARTICULATE AIR CONTAMINANTS ON HEAVY TRAFFIC ROAD. Authors: N. PALIBRODA, O. POPA, SIMONA E. AVRAM, PIETRO TRALDI, LORIS TONIDANDEL, SIMONA NICOARĂ.