1. SAMPLE HANDLING. CHROMATOGRAPHIC ANALYSIS OF TRIFLURALIN FROM ENVIRONMENTAL SAMPLE. I. WATER SAMPLE. Authors: IONEL HAIDUC, S. COBZAC, A. MOCANU, M.C. BACIU.2. SPECTROSCOPIC STUDIES OF SOME METALLIC BIS-DITHIOPHOSPHONATES, M(DTP)2, AND OF SOME ADDUCTS. Authors: RODICA MICU-SEMENIUC, IONEL HAIDUC, RADU SEMENIUC, ONUC COZAR.3. SPECTROSCOPIC CHARACTERIZATION OF SOME CHROMIUM O-ALKYLDITHIOCARBONATES. Authors: RADU FLORIN SEMENIUC, RODICA MICU-SEMENIUC, IONEL HAIDUC, ONUC COZAR.4. SYNTHESIS AND VIBRATIONAL STUDIES ON NEW COMPLEXES OF MONODEPROTONATED (4H-5-MERCAPTO-1,3,4-THIADIAZOL-2-YL)THIOACETIC ACID. Authors: MONICA M. VENTER, VASILE CHIŞ, SIMONA CINTĂ PÂNZARU, V.N. BERCEAN, M. ILICI, IONEL HAIDUC.5. BIOGRAPHY. Authors: IONEL HAIDUC.6. LIST OF PUBLICATIONS 2002-2007. Authors: IONEL HAIDUC.7. VARIATION OF OUTDOOR RADON LEVELS IN URBAN AREAS OF CLUJ COUNTY. Authors: C. COSMA, F. COSMA, M.S. BELDEAN-GALEA, IONEL HAIDUC, A. DINU.8. PROFESSOR LUMINITA SILAGHI-DUMITRESCU AT HER 65TH ANNIVERSARY. Authors: IONEL HAIDUC.9. DITHIOARSINATES REVISITED. A MINI-REVIEW. Authors: IONEL HAIDUC.