Capacitively Coupled Plasma with Tip-Ring Electrode Geometry
for Atomic Emission Spectrometry. Analytical Performance and Matrix
Effect of NaCl and KCl.
E.A. Cordoş, S.D.Anghel, T.Frenţiu şi A. Popescu.
Journal of Analytical Atomic Spectrometry, 1994, 9, 635 - 641
Elemental Speciation of Pb, Zn and Cu in sedimented Dust and
Soil Using a Capacitively Coupled Plasma Atomic Emission Spectrometer
as Detector.
E. A. Cordoş, T. Frențiu, Ana-Maria Rusu şi G. Vâtcă.
Analyst (London), 1995, 120, 725 - 731
Comparison between Tip-Ring Electrode and Single Tip Electrode
Geometries for An Atmospheric-Pressure Capacitively Coupled Plasma.
E. A. Cordoş, T. Frențiu, A. Fodor, Michaela Ponta,
Ana-Maria Rusu şi S. Negoescu.
ACH Models in Chemistry (Budapest), 1995, 132, 313 - 329
Characteristic Temperatures and Electron Number Densities in An
r.f. Capacitively Couple Plasma.
S. D. Anghel, T. Frențiu, E. Darvasi, Ana-Maria Rusu,
A. Simon şi E. A. Cordoş.
Fresenius’ Journal of Analytical Chemistry, 1996, 354, 250 – 251
The Analysis of Conductive Solid Samples by r.f. Capacitively
Coupled Plasma at Atmospheric-Pressure.
S. D. Anghel, T. Frențiu, Ana-Maria Rusu, Lucia Beşe
şi E. A. Cordoş.
Fresenius’ Journal of Analytical Chemistry, 1996, 354, 252 - 253
Analytical Performances for A Radiofrequency Capacitively
Coupled Plasma.
T. Frențiu, Ana-Maria Rusu, Michaela Ponta, S. D.
Anghel şi E. A. Cordoş.
Fresenius’ Journal of Analytical Chemistry, 1996, 354, 254 – 255
Fundamental Characteristics and Analytical Performances of a
Argon CCP with Axial View.
S.D.Anghel, M. Todica, E.A.Cordoş, T. Frențiu, A.M.
Rusu. A. Popescu and A. Simon.
Balkan Physics Letters, 5 supl, 1315 - 1318, 1997
Synthesis and Characterization of Some Manganese (II), Cobalt
(II) and Copper (II) polyoxotungtates with As (III) as Heteroatom.
Cristina Roşu, T. Frențiu, A.M. Rusu, S. Anghel, E.
Cordoş şi G. Marcu.
Syinth. React. Inorg. Met. Org. Chem., 1998, 28, 1665 - 1672
Analytical Characterization of a Capacitively Coupled Plasma
Torch with Central Tube Electrode.
E.A. Cordoş, T. Frențiu, A-M. Rusu, S.D. Anghel, A.
Fodor şi M. Ponta.
Talanta, 1999, 48, 827 - 837
Phisical Characteristics and Spectral Capabilities of
Capacitively Coupled Radiofrequency Plasma Soustained in Atmospheric
Pressure.
T. Frențiu, S.D. Anghel, A. Simon, A.Popescu, A-M.
Rusu, şi E.A. Cordoş.
ACH Models in Chemistry (Budapest), 1999, 136, 131 - 148
Radiofrequency Capacitively Coupled Plasma Torch with Central
Tubular Electrod and Outer Ring Electrode.
T. Frențiu, A-M Rusu, S.D. Anghel, S. Negoescu, A.
Popescu, A. Simon şi E.A. Cordoş.
ACH Models in Chemistry (Budapest), 1999, 136, 119 - 129
Figures of Merit and Fundamental Processes in Analysis of Ca
from Liquid Samples using an r.f.CCP Torch with Tubular and Ring
Electrodes.
T. Frențiu, S.D. Anghel, M. Nicola, E. Darvasi, A
Simon şi E. Cordoş.
Croatica Chemica Acta, 1999, 72, 763 – 778.
Atmospheric Pressure Capacitively Coupled Plasma Source for the
Direct Analysis of non-Conductive Solid Samples.
S.D. Anghel, T. Frențiu, E.A. Cordoş, A. Simon şi A.
Popescu.
Journal of Analytical Atomic Spectrometry, 1999, 14, 541 – 545.
Cadmium Determination in Sedimented Dust by Atomic Emission
Spectrometry with a New Radiofrequency Capacitively Coupled Plasma.
T. Frențiu, M. Ponta, A.M. Rusu, S.D. Anghel, A.
Simon şi E. Cordoş.
Analytical Letters, 2000, 33, 323 – 335.
Study of Some Matrix Effects in a Low Power Radiofrequency
Capacitively Coupled Plasma with a Central Tubular Molybdenum Electrode
and Single Ring Electrode.
T. Frențiu, S.D. Anghel, A. Simon şi E. Cordoş.
ACH Models in Chemistry, 2000, 137, 677 – 690.
Traces of Cu, Mn and Zn in Aquatic Animals and Sediments from
the Cris River Basin – West Romania. Part. I: .
Statistical Evaluation of Data Obtained by Atomic Emission Spectrometry
with Radiofrequency Cpacitively Coupled Plasma Source and Flame Atmic
Absorption Spectrometry.
M. Ponta, T. Frențiu, A.M. Rusu şi E. A. Cordos,
Croatica Chemica Acta, 2002, 75, 291 – 306.
Traces of Cu, Mn and Zn in Aquatic Animals, Water and Sediments
from the Cris River Basin – West Romania. Part. II: Distribution Study.
M. Ponta, T. Frențiu, A. Sarkany-Kiss şi E. A. Cordos.
Croatica Chemica Acta, 2002, 75, 307 – 317.
A Simultaneous Spectrometer with Photodiode Array Detector and
Low Power radiofrequency Capacitively Coupled Plasma Source.
T. Frențiu, E. Darvasi, S.D. Anghel, A. Simon, M.
Ponta şi E.A. Cordoş.
Chem. Anal (Warsaw), 2002, 47, 725 – 736.
Statistical evaluation of Cu, Mn and Zn determinations in
biological samples by Radiofrequency capacitively coupled plasma atomic
emission spectrometry using the Bland and Altman test. .
T. Frențiu, M. Ponta, S. D. Anghel, A. Simon, I.
Marginean and E. A. Cordos.
Microchim. Acta, 2003, 143, 245 – 254.
Characterisation of the Rivers System in the Mining and
Industrial Area of Baia-Mare, Romania.
E.A. Cordoş, R. Răuţiu, C. Roman, M. Ponta, T. Frențiu,
A. Sarkany, L. Fodorpataky, K. Makalik, C. McCormick and D. Weiss.
European Journal of Mineral Processing and Enviromental Protection,
2003, 3, No. 3, 324 - 335.
Investigation of Medium Power Radiofrequency Capacitively
Coupled Plasmas and Their Application in Atomic Emission Spectrometry
for the Determination of Aluminium in Water Samples.
T. Frențiu, M. Ponta, S.D. Anghel, A. Simon, A.M.
Incze and E. A. Cordos.
Microchim. Acta, 2004, 147, 93 – 103.
Investigation of a Medium Power Radiofrequency Capacitively
Coupled Plasma and Its Application to High-Temperature Superconductor
Analysis via Atomic Emission Spectrometry.
A. Simon, T. Frențiu, S.D. Anghel and S. Simon.
J. Anal. At. Spectrom., 2005, 20, 957 – 965.
Characterization of a Very Low Power Argon CCP .
S.D. Anghel, A. Simon and T. Frențiu.
J. Anal. At. Spectrom., 2005, 20, 966 – 973
Optimization of Analytical Parametrs in Inorganic Arsenic (III
and V) Speciation by Hydride Generation Using L-cysteine as Prereducind
Agent in Diluted HCl Medium.
E.A. Cordos, T. Frențiu, M. Ponta, B. Abraham and I.
Marginean.
Chem. Spec. Bioavailab., 2006, 18, 1 – 9.
Distribution Study of Inorganic Arsenic (III) and (V) Species in
Soil and Their Mobility in the Area of Baia-Mare, Romania.
E.A. Cordos, T. Frențiu, M. Ponta, I. Marginean, B.
Abraham and C. Roman.
Chem. Spec. Bioavailab., 2006, 18, 11 – 25
Profile Distribution of As(III) and As(V) Species in Soil and
Grounwater in Bozanta Area .
T. Frențiu, S.N. Vlad, M. Ponta, C. Baciu, I.
Kasler and E. Cordos.
Chem. Pap., 2007, 61, 186 – 193.
Evaluation of Soil Pollution with Copper, Lead, Zinc and Cadmium
in the Mining Area Baia-Mare .
E. Cordos, C. Roman, M. Ponta, T. Frențiu, R. Rautiu.
Revista de Chimie
Interlaboratory Study on Cu, Pb and Zn Determination in Soil by
Inductively Coupled Plasma Atomic Emission Spectrometry Using the Bland
and Altman Test.
T. Frențiu, M. Ponta, E. Levei, M. Şenilă, M. Ursu
and E.A. Cordoş.
J. Optoelectr. Adv. Mater., 2007, 9, 3503 – 3513
Validation of the Tessier Scheme for Speciation of Metals in
Soil Using the Bland and Altman Test .
T. Frențiu, M. Ponta, E. Levei, E. Gheorghiu, I.
Kasler and E.A. Cordoş.
Chem. Pap., 2008, 62, 114 – 122.
Preliminary Study on Heavy Metals Contamination of SoilUsing
Solid Phase Speciation and the Influence on grounwater in Bazanta –
Baia Mare Area, Romania.
T. Frențiu, M. Ponta, E. Levei, E. Gheroghiu, M.
Benea and E.A. Cordoş.
Chem. Spec. Bioavailab., 2008, 20, 111 – 121.
Fast Method for Determination of Cd, Cu, Pb, Se and Zn in Whole
Blood by DRC-ICP- MS Using the Simple Dilution Procedure.
C. Tănăselia, T. Frențiu, M. Ursu, M. Vlad, M.
Chintoanu, E. Cordoş, L. David, M. Paul, D. Gomoescu.
J. Optoelectr. Adv. Mat. Rapid Communication, 2008, 2, 99 – 107.
Preliminary Investigation of a Medium Power Argon Radiofrequency
Capacitively Coupled Plasma as Atomization Cell in Atomic Fluorescence
Spectrometry of Cadmium.
T. Frențiu, E. Darvasi, M. Senila, M. Ponta, E.
Cordos.
Talanta, 2008, 76(5), 1170- 1176. DOI: 10.1016/j.talanta.2008.05.020.
Spectroscopic Investigations on a Low Power Atmospheric Pressure
Capacitively Coupled Helium Plasma.
S.D. Anghel, A. Simon, T. Frențiu.
Plasma Sources Sci. Technol., 2008, 17, 1 – 9.
Study of Partitioning and Dynamics of Metals in Contaminated
Soil Using Modified Four-Step BCR Sequantial Extraction Procedure.
T. Frențiu, M. Ponta, E. Levei, E. Cordos.
Chem. Pap., 2009, 63, 239 – 248.
Qualitative Assessment oh Heavy Metals Sources in
Pitcola/Biomass Briquettes Combustion Using Multivariate Statistical
Analysis.
T. Frențiu, M. Ponta, A. Mihălţan, E. Cordoş, M.
Frenţiu, G. Lăzăroiu, L. Traistă, R. Indrieş.
J. Optoelectr. Adv. Mater., 2009, 11, 697 – 710.
The Synergistic Effect in Coal/Biomass Blend Briquettes
Combustion on Element Behaviour in Bottom Ash using ICP-OES.
G. Lăzăroiu, T. Frențiu, L. Mihăescu, A. Mihălţan, M.
Ponta, M. Frenţiu, E. Cordoş.
J. Optoelectr. Adv. Mater., 2009, 11, 713 – 721.
Characterization of Soil Quality and Mobility of Cd, Cu, Pb and
Zn in the Baia Mare Area Northwest Romania Following the Historical
Pollution.
E. Levei, T. Frențiu, M. Ponta, M. Şenilă, M.
Miclean, C. Roman, E. Cordoş.
International J. Environ. Anal Chem., 2009, 89, 635 – 649.
Discharge Characteristics and non-Spectral Interferences on the
Emission of the Species in a Medium Power r.f.CCP Source.
T. Frențiu, M. Ponta, E. Darvasi, M. Frentiu, E.A.
Cordos.
Acta Chim. Slov., 2010, 57, 173 – 181.
Evaluation of Figures of Merit for Zn Determination in
Environmental and Biological Samples Using EDL Excited AFS in a New
r.f.CCP.
T. Frențiu, M. Ponta, M. Senila, A.I. Mihaltan, E.
Darvasi, M. Frentiu, E.A. Cordos.
J. Anal. At. Spectrom.,2010, 25, 739 – 742.
Quenching of the OH and Nitrogen Molecular Emission by Methane
Addition in an Ar Capacitively Coupled Plasma to Remove Spectral
Interference in Lead Determination by Atomic Fluorescence Spectrometry.
T.Frentiu, M. Ponta, A.I. Mihaltan, E. Darvasi, M. Frentiu, E. Cordos.
Spectrochim. Acta, 2010, 65B, 565 – 570.
Low Power Capacitively Coupled Plasma Microtorch for Simultanous
Multielemental Determination by Atomic Emission Using
Microspectrometres.
T. Frențiu, D. Petreus, M. Şenilă, A.I. Mihălţan,
E. Darvasi, M. Ponta, E. Plăian, E. Cordoş.
Microch. J. 2011, 97, 188 – 195.
Mercury Determination in non- and Biodegradable materials by
Cold vapor Capacitively Coupled Plasma Microtorch Atomic Emission
Spectrometry.
T. Frențiu, A. I. Mihălţan, M. Ponta, E. Darvasi,
M. Frenţiu, E. Cordoş.
J. Hazard. Mater., 2011, 193, 65 – 69.
Spectroscopic Study of Atmospheric Pressure Argon/Methane
Capacitively Coupled Plasma.
Tiberiu Frenţiu, Michala Ponta, Alin Mihălţan, Eugen Darvasi, Maria
Frenţiu, Emil Cordoş.
Studia Universitas Babeş-Bolyai, Chemia, 2011, LVI, 7 – 16
Analytical capability of a medium power capacitively coupled
plasma for the multielemental determination in
multimineral/multivitamin preparations by atomic emission spectrometry.
T. Frențiu, M. Ponta, E. Darvasi, M. Frenţiu, E.
Cordoş.
Food chem., 2012, 134, 2447 – 2552.
Validation of inductively coupled plasma atomic emission
spectrometry technique for the determination of trace elements in
granular waste.
M. Ponta, T. Frențiu.
Studia Chemia, 2012, LVII, 7 – 14.
Essential and toxic elements in dietary supplements determined
by ICP-MS.
Alin, I. Mihălţan, A. Naghiu, C. Tănăselia, T. Frențiu,
C. Cimpoiu.
Studia Chemia, 2012, LVII, 47 – 56.
The heavy metals impact on surface water and soil in the
non-sanitary municipal landfill, Pata Rat Cluj-Napoca.
R. M. Haţegan, G.E. Popiţa, I. Varga, A. Popovici, T. Frențiu.
Studia Chemia, 2012, LVII, 119 – 126.
Ionization of elements in medium power capacitivelz coupled
argon plasma torch with single and double ring electrodes.
M. Ponta, M. Frenţiu, T. Frențiu.
Acta Chim. Slov., 2012, 59, 359 – 365.
A novel analytical system with a capacitively coupled plasma
microtorch and a gold filament microcollector for the determination of
total Hg in water by cold vapour atomic emission spectrometry.
T. Frențiu, A. I. Mihîlţan, E. Darvasi, M. Ponta,
C. Roman, M. Frenţiu.
J. Anal. At. Spectrom., 2012, 27, 1753 – 1760.
Characterization and assesment of potential environmental risk
of tailings stored in seven ipoundments in the Arie River basin,
western Romania.
E. Levei, T. Frențiu, M. Ponta, C. Tănăselia, G.
Borodi.
Chem. Centr. J., 2013, 7, 5.
Validation of an analytical method based on the high-resolution
continuum source flame atomic absorption spectrometry for the
fast-sequential determination of several hazardous/priority hazardous
metals in soil.
T. Frențiu, M. Ponta, R. Haţegan.
Chem. Centr. J., 2013, 7, 43.
Arsenic and antimony determination in non- and biodegradable
matertials by hydride generation capacitively coupled plasma microtorch
optical emission spectrometry.
Alin I. Mihălţan, T. Frențiu, M. Ponta, D. Petreuş,
M. Frenţiu, E. Darvasi, C. Măruţoiu.
Talanta, 2013, 109, 84 – 90.
Effect of titanium ions on the release rate and uptake at the
interface of silica based xerogels with simulated body fluid.
F. Talos, M. Senila, T. Frențiu, S. Simon.
Corros. Sci., 2013, 72, 41 – 46.
Simple and robust method for lithium traces determination in
drinking water by atomic emission using low-power capacitively coupled
plasma microtorch and microspectrometer.
Andreea R. Zsigmond, T. Frențiu, M. Ponta, M.
Frenţiu, D. Petreuş.
Food Chem., 2013, 141, 3621 – 3626.
New method for mercury determination in microwave digested saol
samples based on cold vapor capacitively coupled plasma microtorch
optical emission spectrometry: comparison with atomic fluorescence
spectrometry.
T. Frențiu, A.I. Mihaltan, M. Senila, E.
Darvasi, M. Ponta, M. Frentiu, B.P. Pintican.
Microchem J, 2013, 110, 545-552.
Determination, speciation and distribution of mercury in soil in
the surrounding of a former chlor-alkali plant: assessment of
sequential extraction and analytical technique.
T. Frenţiu, B. P. Pintican,
S. Butaciu, A. I. Mihaltan, M. Ponta, M. Frenţiu
Chem. Cent. J., 2013, 7: 178.
A miniaturized capacitively coupled plasma microtorch optical
emission spectrometer
and a Rh coiled filament as small-sized electrothermal vaporization
device for
simultaneous determination of volatile elements from liquid
microsamples: spectral and
analytical characterization.
T. Frenţiu, E. Darvasi, S.
Butaciu, M. Ponta, D. Petreus, A. I. Mihalţan, M. Frenţiu
Talanta, 2014, 129, 72 – 78
Simultaneous determination of As and Sb in soil using hzdride
generation capacitively
coupled plasma microtorch optical emission spectrometry – comparison
with inductively
coupled plasma optical emission spectrometry. .
T. Frenţiu, S. Butaciu, M.
Ponta, E. Darvasi, M. Şenilă, D. Petreuş, M. Frenţiu
J. Anal. At. Spectrom., 2014, 29, 1880 – 1888.
Assessemnt of contamination and origin of metals in mining
affected river sediments: a
case study of the Aries River catchment, Romania
E. Levei, M. Ponta, M. Şenilă, M. Miclean, T. Frenţiu
J. Serb. Chem. Soc., 2014, 79, 1019 - 1036.
Analytical chararcterization of a method for mercury
determination in food using cold
vapour capacitively coupled plasma microtorch optical emission
spectrometry –
compliance with European legislation requirements
T. Frenţiu, S. Butaciu, E.
Darvasi, M. Ponta, M. Şenilă, D. Petreuş, M. Frenţiu
Anal. Meth., 2015, 7, 747 – 752.
Determinazion of total mercury in fish tissue using a low-cost
cold vapor capacitively
coupled plasma microtorch optical emission microspectrometer:
comparison with direct
mercury determination by thermal decomposition atomic absorption
spectrometry
T. Frenţiu, S. Butaciu, M.
Ponta, M. Şenilă, E. Darvasi, M. Frenţiu, D. Petreuş
Food Anal. Meth. 2015, 8, 643 – 648.
Sono-induced cold vapour generation interfaced with capacitively
coupled plasma microtorch optical emission spectrometry: analytical
characterization and comnparison with atomic fluorescence spectrometry
T. Frenţiu, S. Butaciu, E.
Darvasi, M. Ponta, M. Şenilă, E. Levei, M. Frenţiu
J. Anal. Atom. Spectrom., 2015, 30, 1161 – 1168.
Application of a low-cost electrothermal vaporization
capacitively coupled plasma
microtorch for simultaneous determination of Cd and Pb in environmental
samples
T. Frenţiu, E. Darvasi, S.
Butaciu, M. Ponta, D. Petreuş, R. Etz, M. Frenţiu
Microchem. J., 2015, 121, 192 – 198.
Prediction of the of Hg and other contaminants in sdoil around a
formet chlor-alkali plant
using Fuzzy Hierachical Cross-Clustering aproach
T. Frenţiu, M. Ponta, C.
Sârbu
Chemosphere, 2015, 138, 95 – 103.
Assessment of pollutants input of acide mine drainage and
domestic activities in Arieş
River water, Romania – a chemometric aproach
Levei, E.A., Frentiu T., Ponta
M., Senila M., Moldovan O. T.,
Environ. Eng. Manag. J., 2015, 11, 2567 – 2576.
Detedrmination of Cd in food using an electrothermal vaporization
capacitively coupled
plasma microtorch optical emission microspectrometer: compliance with
European
legislation and comparison with graphite furnace atomic abgsorption
spectrometry.
S. Butaciu, T. Frenţiu, M.
Şenilă, E. Darvasi, S. Cadar, M: Ponta, D. Petreuş, R. Etz,
M.
Frenţiu
Food Cont., 2016, 61, 227 – 234.
Chemical modeling of natural groundwater contamination with
arsenic and co-occurring
species by combining diagrams and unsupervised multivariate statistical
approaches.
S. Butaciu, M. Senila, C. Sarbu, M. Ponta, C. Tanaselia, M. Sima, T. Frentiu,
Chemosphere, 2017, 172, 127 – 137.
Microanalytical Method Based on Electrothermal Vaporization
Capacitively Coupled
Plasma Microtorch Optical Emission Spectrometry for Multielemental
Determination.
Comparison with Inductively Coupled Plasma Optical Emission
Spectrometry.
T. Frentiu, S. Butaciu, E.
Darvasi, M. Ponta, M. Frentiu, D. Petreus,
Chem. Pap., 2017, 71, 91-102
Rapid Determination of Trace Elements in Macedonian Grape
Brandies for Their Characterization and Safety Evaluation
V. Ivanova-Petropulos, B. Balabanova, E. Bogeva, T. Frentiu, M. Ponta, M, Senila,
R.
Gulaboski, F. D. Irimie, Food. Anal. Meth., 2017, 10, 459 – 468.
Methylmercury
determination in seafood by photochemical vapor generation capacitively coupled
plasma microtorch optical emission spectrometry.
E. Covaci, M. Şenilă, M. Ponta, E. Darvasi, D. Petreuş, M. Frenţiu, T. Frentiu
Talanta, 2017,
170, 464 – 472.
Mercury
speciation in seafood using non-chromatographic chemical vapor
generation capacitively coupled plasma microtorch optical emission
spectrometry method evaluation of methylmercury exposure.
E. Covaci, M. Senila, M. Ponta, E. Darvasi, M. Frentiu, T. Frentiu
Food Control, 2017, 82, 266-273
Influence of Mixed Additives on the Physicochemical Properties
of a 5.25% Sodium Hypochlorite Solution: An Unsupervised Multivariate
Statistical Approach
O. Dragan , I. Tomuta, D. Casoni, C. Sarbu, R. Campian, T. Frentiu
J. Endodont., 2018, 44, 280 - 285 e3.