1. AUTOMATION OF A THERMAL IONISATION MASS SPECTROMETER. Authors: A. PAMULA, M. LEUCĂ, S. ALBERT, ADRIANA BENŢA.2. UPGRADING OF THE HP-5985A QUADRUPOLE MASS SPECTROMETER. Authors: N. LUPŞA, V. MIREL, A. PAMULA, N. PALIBRODA, ALINA N. NICA.3. POTENTIOSTATIC SYSTEM WITH DATA ACQUISITION FOR ELECTROCHEMICAL MEASUREMENTS. Authors: N. LUPŞA, GH. MIHĂILESCU, V. MIREL, ALINA N. NICA, A. PAMULA, STELA PRUNEANU.4. HOW ALTERATION OF ELECTRIC PARAMETERS CAN DETERIORATE TIME-OF-FLIGHT MASS SPECTROMETER PERFORMANCE. Authors: D. IOANOVICIU, V. COSMA, C. CUNA, M. KAUCSÁR, A. PAMULA, B. TUZSON.