1. Figures of Merit a Sequential Spectrometer with Inductively Coupled Argon Plasma Source

    2. E. A. Cordoş, T. Frenţiu, A. Fodor, Michaela Ponta, Ana-Maria Rusu şi L. Kekedy.
    Studia Universitatis “Babeş - Bolyai”, 1995, XL, 1 - 2, 13 – 20

  2. Analysis of Calcium, Natrium and Lithium Using a Capacitively Coupled Argon Plasma Atomic Emission Spectrometry

    E. A. Cordoş, T. Frenţiu, S. D. Anghel, A.M. Rusu, M. Ponta şi S. Negoescu
    Studia Universitatis “Babeş – Bolyai”,1995, XL, 1 – 2, 1 – 12

  3. Some fundamental Characteristics for a r.f. Capacitively Coupled Argon Plasma with Tip-
    4. Ring Electrode Geometry

    S.D. Anghel, E.A. Cordoş, T. Frenţiu, A.M Rusu, A. Simon şi E. Darvasi
    Studia Universitatis “Babeş – Bolyai”, Physica    , 1996, XLI, 109

  4. Deviation from local thermodinamic equilibrium in a Capacitively Coupled

    Radiofrequency Plasma Spectral Source.
    S.D. Anghel, T. Frenţiu, E.A. Cordoş, A.Popescu şi A. Simon
    Romanian Journal of Optoelectronics 1997, 5, 37 – 42

  5. Spark and Glow DischargeAtomic Emission Spectrometry – Nondestructive Methods for Solid Samples Analysis

    6. .D. Anghel, A. Simon, T. Frenţiu şi E.A. Cordoş
    Studia Universitatis “Babeş – Bolyai”, Physica, 2000, XLV, 3 – 12

  6. Very Low Power Radiofrequency Capacitively Coupled Plasma Sustained in Air for Liquid and Solid Samples Analysis by Atomic Emission Spectrometry
    7.                                                         

    S.D. Anghel, A. Simon, T. Frentiu, E. Cordos
    Studia Universitatis “Babeş – Bolyai”, Physica, 2000, XLV, 13 – 30

  7. Photometric Determination of Biuret in Melted Urea Using Flow Injection Analysis

    8. T. Frenţiu, M. Ponta, E. Darvasi, L. Kekedy-Nagy, I. Mărginean şi E.A. Cordoş
    Studia Universitatis “Babeş – Bolyai”, Chemia, 2001, XLVI, 1-2, 265 – 272.

  8. Spectrophotometric Determination of Tungsten(V) as Thiocyanate Complex in Certified Steel Materials

    9. T. Frenţiu, M. Ponta şi E.A. Cordoş
    Studia Universitatis “Babeş – Bolyai”, Chemia, 2001, XLVI, 1-2, 273 – 280.

  9. Rotational Temperatures of the OH Band (A2 S+, n = 0® X2P, n¢ = 0at 306.357 nm) in a Very Low RF Power Capacitively Coupled Plasma

    10. A. Simon, S.D. Anghel, S. Simon, T. Frenţiu, E. Czirjak şi E.A. Cordoş
    Studia Universitatis “Babeş – Bolyai”, Physica, 2002, XLVII, 1, 131 – 139.

  10. An investigation into the Cu, Pb and Zn Pollution of the Somes and Lapus Rivers of Baia-Mare Area, Romania,

    11. M. Ponta, T. Frenţiu, C. McCormick, B. Abraham, C. Roman, E. Cordos,
    Studia Universitatis “Babeş-Bolyai”, Chemia, 2003, XLVIII,1,151 – 159.

  11. Flame Atomic Emission Determination of Strontium in Flotation Tailings Using the Methane-Air Flame as Excitation Source,

    12. L. Kekedy-Nagy, T. Frenţiu, A.M. Rusu, M. Ponta, E. Cordos,
    Studia Universitatis “Babeş-Bolyai” ,Chemia, 2003,XLVIII, 1, 225 – 234.

  12. Analysis of Y0.95Bi0.05Ba2Cu3Ox and Bi2Sr2Ca0.9Gd0.1Cu2Ox Superconducting Samples via ICP-AES Technique

    13. A. Şimon, S.D. Anghel, T. Frenţiu, M. Ponta, M.M. Pop and S. Şimon
    Studia Universitatis “Babeş-Bolyai”, Phisyca, 2003, XLVIII, 1, 25 – 34.

  13. Study of Arsenic Determination in Soil by Spectrometric Methods with and Without Hydride generation

    14. T. Frenţiu, M. Ponta, N. Alexa, G. Meculescu, M. Şenilă, B. Abraham and E. Cordoş
    Studia Universitatis “Babeş-Bolyai”, Chemia, 2003, XLVIII, 2, 171 – 180.

  14. Monitoring of Cu, Cd, Zn and Pb in Sediment of the Somes River in NW Romania, After the Cyanide Spill Accident in January 2000

    15. M. Ponta, T. Frenţiu, A. Manciulea and E. Cordoş
    Acta Universitatis Cibiniensis, Seria F Chemia, 2003, 6, 3 – 11.

  15. Computer Simulation of a Czreny-Turner Mount Monochromator

    16. A. Simon, S.D. Anghel, T. Frenţiu, E. Darvasi and Z. Viski
    Studia Universitatis “Babeş-Bolyai”, Physica, 2004, XLIX, 1, 21 – 33.

  16. Effect of Annealing on the Properties and Structure of the 2212 System

    17. Simon, S.D. Anghel, I.G. Deac, T. Frenţiu, B. Reiz, G. Borodi and S. Simon
    Studia Universitatis “Babeş-Bolyai”, Physica, 2004, XLIX, 1, 69 – 74.

  17. Speciation of inorganic arsenic in soil by extraction and hydride generation.

    18. M. Ponta, T. Frenţiu, B. Abraham, E.A.Cordoş,
    Bulletin of the TransilvaniaUniversity of Brasov, published by TransilvaniaUniversity
    Press, ISSN 1223-964x, seria D, Special Edition for the 2nd International Conference on
    Trends in Environmental Education EnvEdu, 2005, 275-280, ISSN 1223-964X.

  18. Heavy metals fractionation in sediments by sequential extraction schemes.

    19. E.A. Konradi, T. Frentiu, M. Ponta, M. Senila, E.Cordos,
    Bulletin of the TransilvaniaUniversity of Brasov, published by TransilvaniaUniversity Press,
    Brasov,ISSN 1223-964x, seria D, Special Edition for the 2nd International Conference on
    Trends in Environmental Education EnvEdu, 2005, 247-252, ISSN 1223-964X.

  19. Environmental and occupational exposure to Cr, Cu, Pb and Zn of population in Baia-

    20. Mare using as index the absorption of contaminants in hair,
    M. Ponta, T. Frentiu, E. Darvasi, A. Bonda, E. Cordos,
    Studia Universitatis “Babeş-Bolyai, CHEMIA, 2005, L, 1,193.

  20. Comparative study of digestion procedures of soils and water sediments using different
    21. HCl/HNO3 ratios for multielemental determination,

    T. Frentiu, M. Ponta, E. Darvasi, B. Reiz, M. Senila, E. Cordos,
    Studia Universitatis “Babeş-Bolyai,CHEMIA, 2005, L, 1, 183.

  21. Extraction and determination methods of arsenic from soil and river sediment

    22. T. Frentiu, M. Ponta, I. Kasler, E. Cordos
    Acta Cibiniensis, 2005, 8, 27 – 32, ISSN 1583-5030.

  22. Use of sequential extraction to assess metal fractionation in soils from Bozânta Mare,
    23. Romania

    Erika-Andrea Konradi, Tiberiu Frenţiu, Michaela Ponta, Emil Cordoş,
    ActaUniversitatis Cibiniensis, Seria F Chemia, 2005, 8, 5-12, ISSN 1583-5030.

  23. Effect of annealing time on the Bi1.6Pb0.4Sr1.6Ca2.0Cu2.8Ox system
    24.    

     A. Simon, S.D. Anghel, I.G. Deac, T. Frentiu, G. Borodi, S. Simon
    Studia Universitatis “Babeş-Bolyai”, Physica, 2005, L, 1, 93 – 98.

  24. Preliminary study regarding heavy metal pollution of soil around the Bozanta Mare tailing dam

    25. Erika-Andrea Konradi, Tiberiu Frentiu, Michaela Ponta, Cecilia Roman, Anca
    Mihaly Cozmuta, Emil Cordos, Environment & progress, 2006, 6, 245-250, Cluj-Napoca,
    ISSN 1584-6733

  25. Use of Tessier’s sequential extraction scheme to assess Cu, Pb and Zn fractionation in
    26. soil,

    Erika-Andrea Konradi, Tiberiu Frentiu, Michaela Ponta, Marin Şenilă, Sanda
    Mărginean, Emil Cordos, Environ& Progress, 2007, 9, 259-264, Cluj-Napoca, ISSN 158-
    6733

  26. Influence of Heavy Metals in Soil on Groundwater Quality inthe Mining Area in Northern
    27. Roamina

    Tiberiu Trentiu, Michaela Ponta, Calin Baciu, Mihaela Postolache, Bulletin of the
    Transilvania University of Brasov, published by Transilvania University Press, Brasov,ISSN
    1223-9631,
    Special Edition for the 3nd International Conference on Trends in Environmental
    Education EnvEdu, 2006, 117-124, ISSN 1223-9631.

  27. Distribution of Water Availabel As(III) and As(V) Species in Soil and the Influence on the
    28. Groundwater Qiality Area in Northern Romania

    Tiberiu Trentiu, Michaela Ponta, Calin Baciu
    University of Brasov, published by TransilvaniaUniversity Press, Brasov,ISSN 1223-9631,
    Special Edition for the 3nd International Conference on Trends in Environmental
    Education EnvEdu, 2006, 125-130, ISSN 1223-9631.

  28. Use of Tessier’s sequential extraction scheme to assess Cu, Pb and Zn fractionation in soil,

    Erika-Andrea Konradi, Tiberiu Frentiu, Michaela Ponta, Marin Şenilă, Sanda Mărginean, Emil
    Cordos,
    Environ& Progress, 2007, 9, 259-264, Cluj-Napoca, ISSN 158- 6733

  29. Seleniu seric şi funcţia ventriculară stângă la diabeticii de tip 2 cu sindrom metabolic

    30. M.N. Rusu, T. Frenţiu, C. Măruţoiu, L.D. Rusu, D. Zdrenghea, M. Rusu,
    Medicina Internă, 2009, 6, 125.