1. COMPARATIVE STUDY OF DIGESTION PROCEDURES OF SOILS AND WATER SEDIMENTS USING DIFFERENT HCL/HNO3 RATIOS FOR MULTIELEMENTAL DETERMINATION. Authors: EMIL CORDOŞ, MARIN ŞENILĂ, MONICA URSU, EUGEN DARVASI, MICHAELA PONTA, FRENŢIU TIBERIU.2. ENVIRONMENTAL AND OCCUPATIONAL EXPOSURE TO CR, CU, PB AND ZN OF POPULATION IN BAIA-MARE USING AS INDEX THE ABSORPTION OF CONTAMINANTS IN HAIR. Authors: MICHAELA PONTA, FRENŢIU TIBERIU, EUGEN DARVASI, AUGUSTA BONDA, EMIL CORDOŞ.3. COMPUTER SIMULATION OF A CZERNY TURNER MOUNT MONOCHROMATOR. Authors: ALPAR SIMON, SORIN DAN ANGHEL, FRENŢIU TIBERIU, EUGEN DARVASI, ZSOLT VISKI.4. FLAME ATOMIC EMISSION SPECTROMETRY DETERMINATION OF CESIUM IN MINERAL AND WELL WATERS USING A METHANE-AIR FLAME. Authors: LADISLAU KÉKEDY-NAGY, EUGEN DARVASI.5. PHOTOMETRIC DETERMINATION OF BIURET IN MELTED UREA USING FLOW INJECTION ANALYSIS. Authors: FRENŢIU TIBERIU, MICHAELA PONTA, EUGEN DARVASI, LADISLAU KÉKEDY-NAGY, IOAN MĂRGINEAN, EMIL A. CORDOŞ.6. RED PEPPER POWDER COLOR MEASUREMENT BY USING AN INTEGRATING SPHERE AND DIGITAL IMAGE PROCESSING. Authors: EUGEN DARVASI, LADISLAU KÉKEDY-NAGY.7. SPECTROSCOPIC STUDY OF ATMOSPHERIC PRESSURE ARGON/METHANE CAPACITIVELY COUPLED PLASMA. Authors: E. CORDOS, MARIA FRENȚIU, EUGEN DARVASI, ALIN IRONIM MIHĂLŢAN, MICHAELA PONTA, FRENŢIU TIBERIU.8. SIMPLE AND COST-EFFECTIVE MULTISPECTRAL IMAGING SYSTEM FOR REFLECTANCE MEASUREMENT USING LED LIGHT SOURCES AND INTEGRATING SPHERE. Authors: CSONGOR MÁTYÁS, EUGEN DARVASI.9. DEVELOPMENT AND CHARACTERIZATION OF A METHOD FOR THE DETERMINATION OF TOTAL As IN WATER BY HYDRIDE GENERATION AND OPTICAL EMISSION DETECTION IN ARGON CAPACITIVELY COUPLED PLASMA MICROTORCH. Authors: TIBERIU FRENTIU, GABRIELA HORVATH, MARIA FRENTIU, EUGEN DARVASI, MICHAELA PONTA, SINZIANA BUTACIU.10. SIMULTANEOUS DETERMINATION OF CALCIUM AND MAGNESIUM IN NATURAL WATERS BY METHANE-AIR FLAME EMISSION AND FLAME ATOMIC ABSORPTION SPECTROMETRY USING A MICROSPECTROMETER. Authors: CSILLA SZENTKIRÁLYI, NORBERT MUNTEAN, EUGEN DARVASI.11. SIMULTANEOUS DETERMINATION OF Zn, Cd, Pb AND Cu IN MUSHROOMS BY DIFFERENTIAL PULSE ANODIC STRIPPING VOLTAMMETRY. Authors: MICHAELA PONTA, EUGEN DARVASI, ENIKŐ COVACI.