Δημοσιεύσεις σε Διεθνή Επιστημονικά Περιοδικά με Κριτές

  • 76) "Zwitterionic hydrophilic interaction chromatography coupled with post-column derivatization for the analysis of glutathione in wine samples".
    C.K. Zacharis, P.D. Tzanavaras*, T.D. Karakosta, D.G. Themelis
    Anal. Chim. Acta, 795, 75, 2013.
  • 75) "High-throughput determination of quinine in beverages and soft drinks based on zone-fluidics coupled to monolithic liquid chromatography".
    P. D. Tzanavaras*, C. K. Zacharis, T. D. Karakosta, A. Zotou, D. G. Themelis
    Anal. Lett., 46, 1718, 2013.
  • 74) "Determination of glutathione and cysteine in yeasts by hydrophilic interaction liquid chromatography followed by on-line post-column derivatization".
    T.D. Karakosta, P.D. Tzanavaras, D.G. Themelis*
    J. Sep. Sci., 36, 1877, 2013.
  • 73) "Selective fluorimetric method for the determination of histamine in seafood samples based on the concept of zone fluidics"
    P.D. Tzanavaras*, O. Deda, T.D. Karakosta, D.G. Themelis
    Anal. Chim. Acta, 778, 48, 2013.
  • 72) "Chromatographic behavior of the biologically active proline derivative captopril on particulate, monolithic and core–shell narrow bore columns".
    C.K. Zacharis, T.D. Karakosta, P.D. Tzanavaras*, P.G. Rigas, D.G. Themelis
    Anal. Methods, 4, 4373, 2012.
  • 71) "Generic preconcentration/dilution sequential injection manifold for the automated ampero-metric determination of free cyanides from sub-ppb to high ppm levels".
    C.K. Zacharis, P. Tzanavaras*, D.G. Themelis
    NATO Science for Peace and Security Series A: Chemistry and Biology, 279, 2012.
  • 70) "Isocratic liquid chromatographic determination of three paraben preservatives in hygiene wipes using a reversed phase core-shell narrow-bore column".
    P. D. Tzanavaras*, T. D. Karakosta, P. G. Rigas, D. G. Themelis, A. Zotou
    Cent. Eur. J. Chem., 10, 1459, 2012.
  • 69) "On-line cleavage of disulfide bonds by soluble and immobilized tris-(2-carboxyethyl) phosphine using sequential injection analysis".
    P. D. Tzanavaras*, C. Mitani, A. Anthemidis, D. G. Themelis
    Talanta, 96, 21, 2012.
  • 68) "Automated determination of total captopril in urine by liquid chromatography with post-column derivatization coupled to on-line solid phase extraction in a sequential injection manifold".
    T. D. Karakosta, P. D. Tzanavaras, D. G. Themelis*
    Talanta, 88, 561, 2012.
  • 67) "Automated pre-column derivatization of thiolic fruit-antibrowning agents by sequential injection coupled to highperformance liquid chromatography using a monolithic stationary phase and an in-loop stopped-flow approach".
    T. D. Karakosta, P. D. Tzanavaras and D. G. Themelis*
    J. Sep. Sci., 34, 2240, 2011.
  • 66) "On-line derivatization of N-acetylcysteine using ethyl-propiolate as a novel advantageous reagent and sequential injection analysis".
    P.D. Tzanavaras*, C.K. Zacharis and D.G.Themelis
    Anal. Lett., 43, 1889, 2010.
  • 65) "Rapid determination of methylxanthines in real samples by high performance liquid chromatography using the new FastGradient® narrow-bore monolithic column".
    P. D. Tzanavaras*, C. K. Zacharis and D. G. Themelis
    Talanta, 81, 1494, 2010.
  • 64) "Generic automated fluorimetric assay for the quality control of gamma aminobutyric acid-analogue anti-epileptic drugs using sequential injection analysis".
    D. G. Themelis*, P. D. Tzanavaras and E. A.Boulimari
    Anal. Lett., 43, 905, 2010.
  • 63) "Automated zone-sampling dilution by coupling sequential injection analysis to high-throughput HPLC for the direct determination of gemfibrozil".
    P. D. Tzanavaras*, D. G. Themelis and P. Rigas
    J. Sep. Sci., 32, 2819, 2009.
  • 62) "Ethyl-propiolate as a novel and promising analytical reagent for the derivatization of thiols: study of the reaction under flow conditions".
    C. K. Zacharis*, P. D. Tzanavaras and D. G. Themelis
    J. Pharm. Biomed. Anal., 50, 384, 2009.
  • 61) "Automated sample preparation coupled to sequential injection chromatography: on-line filtration and dilution protocols prior to separation."
    C. K. Zacharis, A. Verdoukas, P. D. Tzanavaras* and D.G. Themelis
    J. Pharm. Biomed. Anal., 49, 726, 2009.
  • 60) "Separation and determination of nimesulide related substances for quality control purposes by micellar electrokinetic chromatography".
    C. K. Zacharis, P. D. Tzanavaras*, M. Notou, A. Zotou and D. G. Themelis
    J. Pharm. Biomed. Anal., 49, 201, 2009.
  • 59) "Hybrid sequential injection-flow injection manifold for the spectrophotometric determination of total sulfite in wines using o-phthalaldehyde and gas-diffusion".
    P. D. Tzanavaras*, E. Thiakouli and D. G. Themelis
    Talanta, 77, 1614, 2009.
  • 58) "Selective determination of cyanides by gas diffusion-stopped flow-sequential injection analysis and on-line standard addition approach".
    D. G. Themelis*, S. Karastogianni and P. D. Tzanavaras*
    Anal. Chim. Acta, 632, 93, 2009.
  • 57) "Optimization and validation of a dissolution test for selegiline hydrochloride tablets by a novel rapid HPLC assay using a monolithic stationary phase".
    P. D. Tzanavaras*, D. G. Themelis, A. Zotou, J. A. Statis and Bo Karlberg
    J. Pharm. Biomed. Anal., 46, 670, 2008.
  • 56) "Sequential-injection analysis: A useful tool for clinical and biochemical analysis".
    A. Economou*, P. D. Tzanavaras and D. G. Themelis
    Curr. Pharm. Anal., 3, 249, 2007.
  • 55) "Automated determination of flutamide by a validated flow-injection method. Application to dissolution studies of pharmaceutical tablets".
    P. D. Tzanavaras*and D. G. Themelis
    J. Pharm. Biomed. Anal., 43, 1820, 2007.
  • 54) "Highly selective flow injection spectrophotometric determination of gold based on its catalytic effect on the oxidation of variamine blue by potassium iodate in aqueous N, N΄ dimethylformamide medium".
    D. G. Themelis*, A. V. Trellopoulos, P. D. Tzanavaras and M. C. Sofoniou
    Talanta, 72, 277, 2007.
  • 53) "Review of recent applications of flow injection spectrophotometry to pharmaceutical analysis". (Review).
    P. D. Tzanavaras*and D. G. Themelis*
    Anal. Chim. Acta, 588, 1, 2007.
  • 52) "Review of analytical methods for the determination of chlorine dioxide" (Invited).
    P. D. Tzanavaras*, D. G. Themelis* and F. S. Kika
    Cent. Eur. J. Chem., 5, 1, 2007.
  • 51) "High-throughput HPLC assay of acyclovir and its major impurity guanine using a monolithic column and a flow gradient approach".
    P. D. Tzanavaras* and D. G. Themelis
    J. Pharm. Biomed. Anal., 43, 1526, 2007.
  • 50) "Validated high-throughput HPLC assay for nimesulide using a short monolithic column".
    P. D. Tzanavaras* and D. G. Themelis
    J. Pharm. Biomed. Anal., 43, 1483, 2007.
  • 49) "Selective stopped-flow sequential injection method for the spectrophotometric determination of titanium in dental implant and natural Moroccan phosphate rock".
    F. S. Kika and D. G. Themelis*
    Talanta, 71, 1405, 2007.
  • 48) "Development and validation of a high-throughput high-performance liquid chromatographic assay for the determination of caffeine in food samples using a monolithic column".
    P. D. Tzanavaras* and D. G. Themelis
    Anal. Chim. Acta, 581, 89, 2007.
  • 47) "Enzymatic chemiluminescent assay of glucose by sequential-injection analysis with soluble enzyme and on-line sample dilution".
    A. Economou*, P. Panoutsou and D. G. Themelis
    Anal. Chim. Acta, 572, 140, 2006.
  • 46) "Flow and sequential injection methods for the spectrofluorimetric determination of aluminium in pharmaceutical products using chro-motropic acid as chromogenic reagen".
    D. G. Themelis* and F. S. Kika
    J. Pharm. Biomed. Anal., 41, 1179, 2006.
  • 45) "Gas-diffusion flow injection assay for the selective determination of chlorine dioxide based on the fluorescence quenching of chromotropic acid".
    D. G. Themelis* and F. S. Kika
    Microchem. J., 82, 108, 2006.
  • 44) "Flow injection direct spectrophotometric assay for the speciation of trace chromium(III) and chromium(VI) using chromotropic acid as chromogenic reagent".
    D. G. Themelis*, F. S. Kika and A. Economou
    Talanta, 69, 615, 2006.
  • 43) "Sequential injection analysis: Principles, instrument construction, and demonstration by a simple experiment".
    A. Economou*, P. D. Tzanavaras and D. G. Themelis
    J. Chem. Educ., 82, 1820, 2005.
  • 42) "Development and validation of a flow-injection assay for dissolution studies of the anti-depressant drug venlafaxine".
    P. D. Tzanavaras*, A.Verdoucas and D. G. Themelis
    Anal. Sci., 21, 1515, 2005.
  • 41) "Validated flow injection spectrophotometric assay for the quality and stability control of gemfibrozil tablets".
    P. D. Tzanavaras* and D. G. Themelis
    Anal. Lett., 38, 2165, 2005.
  • 40) "Assay of the synthetic estrogen fosfestrol in pharmaceutical formulations using capillary electrophoresis".
    D. G. Themelis*, A. Trellopoulos, P. D. Tzanavaras and Bo Karlberg
    J. Pharm. Biomed. Anal., 39, 559, 2005.
  • 39) "Direct determination of phosphate in urine by sequential-injection analysis with single on-line dilution-calibration method and photometric detection".
    D. G. Themelis*, A. Economou, A. Tsiomlektsis and P. D. Tzanavaras
    Anal. Biochem., 330, 193, 2004.
  • 38) "Rapid spectrofluorometric determination of lisinopril in pharmaceutical tablets using sequential injection analysis".
    C. K. Zacharis, P. D. Tzanavaras, D. G. Themelis*, G. Theodoridis, A. Economou and P. G. Rigas
    Anal. Bioanal. Chem., 379, 759, 2004.
  • 37) "Determination of boron in water and pharmaceuticals by sequential-injection analysis and fluorimetric detection".
    A. Economou*, D. G. Themelis, H. Bikou, P. D. Tzanavaras and P. G. Rigas
    Anal. Chim. Acta, 510, 219, 2004.
  • 36) "Automated sample preparation based on the sequential injection principle: solid-phase extraction on a molecularly imprinted polymer coupled on-line to high-performance liquid chromatography".
    G.Theodoridis*, C.K. Zacharis, P.D.Tzanavaras, D.G.Themelis and A.Economou
    J. Chromatogr. A, 1030, 69. 2004.
  • 35) "Determination of methimazole and carbimazole by flow-injection with chemiluminescence detection based on the inhibition of the Cu(II)-catalysed luminol-hydrogen peroxide reaction".
    A. Economou*, P. D. Tzanavaras, M. Notou and D. G. Themelis
    Anal. Chim. Acta, 505, 129, 2004.
  • 34) "Sequential injection method for the direct spectrophotometric determination of bismuth in pharmaceutical products".
    P. D. Tzanavaras, D. G. Themelis* and A. Economou
    Anal. Chim. Acta, 505, 167, 2004.
  • 33) "Novel flow injection spectrophotometric determination of fosinopril using UV-assisted digestion and an orthophosphates calibration graph".
    P. D. Tzanavaras and D. G. Themelis*
    Anal. Chim. Acta, 481, 321, 2003.
  • 32) "Flow and sequential injection manifolds for the spectrophotometric determination of captopril based on its oxidation by Fe(III)".
    P. D. Tzanavaras, D. G. Themelis*, A. Economou and G. Theodoridis
    Microchim. Acta, 142, 55, 2003.
  • 31) "Flow injection spectrophotometric determination of fosfestrol, following on-line thermal induced digestion and using an orthophosphate calibration graph".
    P. D. Tzanavaras and D. G. Themelis*
    Talanta, 59, 207, 2003.
  • 30) "Sensitive determination of captopril by flow injection analysis with chemiluminescence detection based on the enhancement of the luminol reaction".
    A. Economou*, D. G. Themelis, G. Theodoridis and P. D. Tzanavaras
    Anal. Chim. Acta, 463, 249, 2002.
  • 29) "Rapid spectrophotometric determination of fosfestrol following on-line hydrolysis by alkaline phosphatase using flow injection and chasing zones".
    P. D. Tzanavaras, D. G. Themelis* and Bo Karlberg
    Anal. Chim. Acta, 462, 119, 2002.
  • 28) "Flow injection spectrophotometric determination of the antibiotic fosfomycin in pharmaceutical products and urine samples after on-line thermal-induced digestion".
    P. D. Tzanavaras and D. G. Themelis*
    Anal. Biochem., 304, 244, 2002.
  • 27) "Reversed flow-injection manifold for the spectrophotometric determination of captopril based on its inhibitory effect on the Co(II)-2,2΄-dipyridyl-2-pyridyl-hydrazone complex formation".
    P. D. Tzanavaras, D. G. Themelis*, A. Economou and G. Theodoridis
    Talanta, 57, 575, 2002.
  • 26) "Simultaneous flow-injection determination of fluoride, monofluorophosphate and orthophosphate ions using alkaline phosphatase immobilized on a cellulose nitrate membrane and an open-circulation approach".
    P. D. Tzanavaras and D. G. Themelis*
    Anal. Chim. Acta, 467, 83, 2002.
  • 25) "Determination of mineral content of active dry yeast used in pharmaceutical formulations".
    G. A. Zachariadis*, E. S. Raidou, D. G. Themelis and J. A. Stratis
    J. Pharm. Biomed. Anal., 28, 463, 2002.
  • 24) "Solvent extraction flow-injection manifold for the simultaneous spectrophotometric determination of free cyanide and thiocyanate ions based upon on-line masking of cyanides by formaldehyde".
    D. G. Themelis* and P. D. Tzanavaras
    Anal. Chim. Acta, 452, 295, 2002.
  • 23) "Direct and selective flow-injection method for the simultaneous spectrophotometric determination of calcium and magnesium in red and white wines using on line dilution based on "zone sampling".
    D. G. Themelis*, P. D. Tzanavaras, A. V. Trellopoulos and M. C. Sofoniou
    J. Agric. Food Chem., 49, 5152, 2001.
  • 22) "Rapid flow injecton spectrophotometric determination of monofluorophosphates in toothpastes after on-line hydrolysis by alkaline phosphatase immobilized on a cellulose nitrate membrane".
    P. D. Tzanavaras and D. G. Themelis*
    Analyst, 126, 1608, 2001.
  • 21) "Flow-injection manifold for the simultaneous spectrophotometric determination of Fe(II) and Fe(III) using 2,2΄-dipyridyl-2-pyridyl-hydrazone and a single-line double injection approach".
    D. G. Themelis*, P. D. Tzanavaras, F. S. Kika and M. C. Sofoniou
    Fresenius' J. Anal. Chem., 371, 364, 2001.
  • 20) "On-line dilution flow injection manifold for the selective spectrophotometric determination of ascorbic acid based on the Fe (II)- 2, 2-dipyridyl-2-pyridyl hydrazone complex formation".
    D. G. Themelis*, P. D. Tzanavaras and F. S. Kika
    Talanta, 55, 127, 2001.
  • 19) "Simultaneous spectrophotometric determination of fluoride and monofluorophosphate ions in toothpastes using a reversed flow injection manifold".
    D. G. Themelis* and P. D. Tzanavaras
    Anal. Chim. Acta, 429, 111, 2001.
  • 18) "Flow injection manifold for the direct spectrophotometric determination of bismuth in pharmaceutical products using methylthymol blue as a chromogenic agent".
    D. G. Themelis*, P. D. Tzanavaras and J. K. Papadimitriou
    Analyst, 126, 247, 2001.
  • 17) "Stopped-flow injection liquid-liquid extraction spectrophotometric determination of palladium in airborne particulate matter and automobile catalysts".
    A. N. Anthemidis, D. G. Themelis and J. A. Stratis*
    Talanta, 54, 37, 2001.
  • 16) "Simple, rapid reagent-injection spectrophotometric determination of fluorides in pharmaceutical formulations".
    D. G. Themelis*, P. D. Tzanavaras and H. D. Tzanavaras
    J. Pharm. Biomed. Anal., 25, 971, 2001.
  • 15) "Reagent-injection spectrophotometric determination of citric acid in beverages and pharmaceutical formulations based on its inhibitory effect on the iron(III) catalytic oxidation of 2,4-diaminophenol by hydrogen peroxide".
    D. G. Themelis* and P. D. Tzanavaras
    Anal. Chim. Acta, 428, 23, 2001.
  • 14) "Normal and differential demasking flow-injection manifold for the direct spectrophotometric determination of zinc(II) in biological materials and pharmaceutical formulations".
    D. G. Themelis*, P. D. Tzanavaras, A. A. Liakou, H. D. Tzanavaras and J. K. Papadimitriou
    Analyst, 125, 2106, 2000.
  • 13) "Selective stopped-flow injection spectrophotometric determination of palladium(II) in hydrogenation and automobile exhaust gas converter catalysts".
    A. N. Anthemidis, D. G. Themelis* and J. Stratis
    Anal. Chim. Acta, 412, 161, 2000.
  • 12) "Direct, selective flow injection spectrophotometric determination of calcium in wines using methylthymol blue and an on-line cascade dilution system".
    D. G. Themelis*, P. D. Tzanavaras, A. N. Anthemidis and J. Stratis
    Anal. Chim. Acta, 402, 259, 1999.
  • 11) "Flame AAS and UV-VIS determination of cobalt, nickel and palladium using the synergetic effect of 2-benzoylpyridine-2-pyridyl-hydrazone and thiocyanate ions".
    G. A. Zachariadis, D. G. Themelis, D. J. Kosseoglou and J. Stratis*
    Talanta, 47, 161, 1998.
  • 10) "Selective spectrophotometric determination of cobalt(II) using 2,2-dipyri-dyl-2-pyridyl hydrazone (DPPH) and a flow injection manifold".
    D. G. Themelis*, G. A. Zachariadis and J. A. Stratis
    Analyst, 120, 1593, 1995.
  • 9) "Simultaneous extraction and atomic absorption spectrometric determination of IB group elements (Cu, Ag, Au) from aqueous thiocyanate/2,2-dipyridyl-2-pyridyl hydrazone (DPPH) solutions".
    J. A. Stratis*, D. G. Themelis, D. G. Zatkas and I. A. Kafritsas
    Anal. Lett., 22, 1779, 1989.
  • 8) "Utilization of kinetic-based flow injection methods for the determination of chlorine and oxychlorine species".
    G. Gordon*, K. Yoshino, D. G. Themelis, D. Wood and G. E. Pacey
    Anal. Chim. Acta, 224, 383, 1989.
  • 7) "Determination of low concentrations of chlorite and chlorate ions by using a flow-injection system".
    D. G. Themelis, D. Wood and G. Gordon*
    Anal. Chim. Acta, 225, 437, 1989.
  • 6) "Designed study of the effect of different reaction parameters on the catalytic determination of iron (III)".
    V. Simeonov*, D. G. Themelis and J. Stratis
    Fresenius' J. Anal. Chem., 331, 39, 1988.
  • 5) "Kinetic determination of trace amounts of copper (II) using its catalytic effect on the oxidation of chromotropic acid by hydrogen peroxide".
    D. G. Themelis and G. S. Vasilikiotis*
    Analyst, 112, 797, 1987.
  • 4) "Catalytic determination of nanogram amounts of iron(III) using its catalytic effect on the oxidation of chromotropic acid by hydrogen peroxide".
    D. G. Themelis and G. S. Vasilikiotis*
    Analyst, 112, 791, 1987.
  • 3) "Indirect kinetic microdetermination of oxalate, citrate, and fluoride ions".
    G. S. Vasilikiotis*, C. Papadopoulos, D. G. Themelis and M. Sofoniou
    Microchem. J., 28, 431, 1983.
  • 2) "Preliminary study of Thessaloniki bay for contamination by mercury and lead".
    G. S. Vasilikiotis*, N. A. Voulouvoutis, D. G. Themelis and M. C. Sofoniou
    Chemosphere, 11, 479, 1982.
  • 1) "Catalytic microdetermination of iron".
    G. S. Vasilikiotis*, C. Papadopoulos, M. Sofoniou and D. G. Themelis
    Microchem. J., 22, 541, 1977.