Δημοσιεύσεις σε Διεθνή Επιστημονικά Περιοδικά με Κριτές

  • 77) "Automated derivatization and fluorimetric determination of biogenic amines in milk by zone fluidics coupled to liquid chromatography".
    M. Notou, A. Zotou, P. D. Tzanavaras, D.G. Themelis
    J. Chromatogr. A,1356, 272, 2014.
  • 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 amperometric 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 chromotropic 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.