[1] | "Automated derivatization of pharmaceutically active thiols under flow conditions using an o-phthalaldehyde/glycine fluorogenic system and sequential injection analysis." T.D. Karakosta and P.D. Tzanavaras* Anal. Lett., in press. |
[2] | "Automated pre-column derivatization of thiolic fruit-antibrowning agents by sequential injection coupled to high performance 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 (2011) 2240. |
[3] | "Development and validation of an ultra-fast liquid chromatographic method for the quality control of famotidine formulations using a short monolithic stationary phase." P.D. Tzanavaras* Central Eur. J. Chem., 9 (2011) 446. |
[4] | "Development and validation of a rapid HPLC method for the determination of five banned fat-soluble colorants in spices using a narrow-bore monolithic column." C.K. Zacharis*, F.S. Kika, P.D. Tzanavaras, P. Rigas and E.R. Kyranas Talanta, 84 (2011) 480. |
[5] | "Ethyl propiolate as a post-column derivatization reagent for thiols: development of a green liquid chromatographic method for the determination of glutathione in vegetables." C.K. Zacharis, P.D. Tzanavaras* and A. Zotou Anal. Chim. Acta, 690 (2011) 122. |
[6] | "HPLC separation of nimesulide and five impurities using a narrow-bore monolithic column: application to photo-degradation studies." C.K. Zacharis and P.D. Tzanavaras* Chromatographia, 73 (2011) 347. |
[7] | "Automated tagging of pharmaceutically active thiols under flow conditions using monobromobimane." P.D. Tzanavaras* and T.D. Karakosta J. Pharm. Biomed. Anal., 54 (2011) 882. |
[8] | "NBD-Cl as a post-column reagent for primary and secondary amines after separation by ion-exchange chromatography." C.K. Zacharis, P.D. Tzanavaras, P.N. Mouroutis and P. Rigas* Anal. Lett., 44 (2011) 1821. |
[9] | "Automated determination of Captopril by flow and sequential injection analysis: a review" P.D. Tzanavaras* Anal. Lett., 44 (2011) 560. |
[10] | "Derivatization of thiols under flow conditions using two commercially available propiolate esters." P.D. Tzanavaras*, A. Tsiomlektsis and C.K. Zacharis J. Pharm. Biomed. Anal., 53 (2010) 790. |
[11] | "LC-determination of five paraben preservatives in saliva and toothpaste samples using UV detection and a short monolithic column." A. Zotou*, I. Sakla and P.D. Tzanavaras J. Pharm. Biomed. Anal., 53 (2010) 785. |
[12] | "Solvent-based de-emulsification dispersive liquid-liquid microextraction combined with gas chromatography-mass spectrometry for determination of trace organochlorine pesticides in environmental water samples." C.K. Zacharis*, P.D. Tzanavaras, C. Roubos, K. Dima J. Chromatogr. A, 1217 (2010) 5896. |
[13] | "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 (2010) 1889. |
[14] | "High throughput automated determination of glutathione based on the formation of a UV-absorbing thioacrylate derivative" (Invited article) C.K. Zacharis and P.D. Tzanavaras* Comb. Chem. & High Through. Screen., 13 (2010) 461. |
[15] | "Recent advances in the analysis of organic impurities of active pharmaceutical ingredients and formulations: a review" P.D. Tzanavaras* Curr. Org. Chem., 14 (2010) 2348. |
[16] | "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 (2010) 1494. |
[17] | "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 (2010) 905. |
[18] | "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 (2009) 384. |
[19] | "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 (2009) 2819. |
[20] | "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 (2009) 726. |
[21] | "Development and validation of a micellar electrokinetic chromatography method for the purity control of nimesulide pharmaceuticals." C.K. Zacharis, P.D. Tzanavaras*, M. Notou, A. Zotou and D.G. Themelis J. Pharm. Biomed. Anal., 49 (2009) 201. |
[22] | "Selective determination of cyanides by gas diffusion-stopped flow-sequential injection analysis and an on-line standard addition approach." D.G. Themelis*, S. Karastogianni and P.D. Tzanavaras Anal. Chim. Acta, 632 (2009) 93. |
[23] | "Hybrid sequential injection-flow injection manifold for the spectrophotometric determination of total sulfite in wines using o-pthalaldehyde and gas-diffusion." P.D. Tzanavaras, E. Thiakouli and D.G. Themelis* Talanta, 77 (2009) 1614. |
[24] | "Amperometric determination of cyanides at the low ppb level by automated preconcentration based on gas diffusion coupled to sequential injection analysis." C.K. Zacharis*, P.D. Tzanavaras, A.N. Voulgaropoulos* and B. Karlberg Talanta, 77 (2009) 1620. |
[25] | "Novel automated assay for the quality control of mexiletine hydrochloride formulations using sequential injection and on-line dilution." P.D. Tzanavaras*, C.K. Zacharis and P. Rigas J. Pharm. Biomed. Anal., 48 (2008) 1254. |
[26] | "Determination of bisphosphonate active pharmaceutical ingredients in pharmaceuticals and biological material: A review of analytical methods." C.K. Zacharis* and P.D. Tzanavaras J. Pharm. Biomed. Anal., 48 (2008) 483. |
[27] | "Extraction of acyclovir from pharmaceutical creams prior to HPLC assay analysis. Optimization and validation of pre-treatment protocols." (invited article) P.D. Tzanavaras and C.K. Zacharis* Central Eur. J. Chem., 6 (2008) 140. |
[28] | "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. Stratis and B. Karlberg J. Pharm. Biomed. Anal., 46 (2008) 670. |
[29] | "Sequential-injection analysis: a useful tool for clinical and biochemical analysis." (invited article) A. Economou*, P.D. Tzanavaras and D.G. Themelis Curr. Pharm. Anal., 3 (2007) 249. |
[30] | "Review of recent applications of flow injection spectrophotometry to pharmaceutical analysis." P.D. Tzanavaras* and D.G. Themelis Anal. Chim. Acta, 588 (2007) 1. |
[31] | "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 (2007) 1820. |
[32] | "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. Sofoniou Talanta, 72 (2007) 277. |
[33] | "Review on analytical methods for the determination of chlorine dioxide" (invited article) P.D. Tzanavaras*, D.G. Themelis* and F.S. Kika Central Eur. J. Chem., 5 (2007) 1. |
[34] | "Rapid HPLC assay of acyclovir and its major impurity guanine in raw materials and pharmaceutical creams using a monolithic column and a flow gradient approach" P.D. Tzanavaras* and D.G. Themelis J. Pharm. Biomed. Anal., 43 (2007) 1526. |
[35] | "Validated high-throughput HPLC assay for nimesulide using a short monolithic column" P.D. Tzanavaras* and D.G. Themelis J. Pharm. Biomed. Anal., 43 (2007) 1483. |
[36] | "Development and validation of a high-throughput HPLC assay for the determination of caffeine in food samples using a monolithic column" P.D. Tzanavaras* and D.G. Themelis Anal. Chim. Acta, 581 (2007) 89. |
[37] | "Optimization and validation of a dissolution test for famotidine tablets using flow injection analysis" P.D. Tzanavaras*, A. Verdoukas and T. Balloma J. Pharm. Biomed. Anal., 41 (2006) 437. |
[38] | "Sequential Injection Analysis : Principles, Construction of a SIA Analyzer and Demonstration by a Simple Experiment" A. Economou*, P.D. Tzanavaras and D.G. Themelis J. Chem. Educ., 82 (2005) 1820. |
[39] | "Development and validation of a flow injection assay for the dissolution studies of the anti-depressant drug venlafaxine." P.D. Tzanavaras*, A. Verdoukas and D.G. Themelis Anal. Sci., 21 (2005) 1515. |
[40] | "Validated flow injection spectrophotometric assay for the quality and stability control of gemfibrozil tablets." P.D. Tzanavaras* and D.G. Themelis Anal. Lett., 38 (2005) 2165. |
[41] | "Assay of the synthetic estrogen fosfestrol in pharmaceutical formulations using capillary electrophoresis." D.G. Themelis*, A.V. Trelopoulos, P.D. Tzanavaras and B. Karlberg J. Pharm. Biomed. Anal., 39 (2005) 559. |
[42] | "Normal spectrophotometric and stopped-flow spectrofluorimetric sequential injection methods for the determination of alendronic acid, an anti-osteoporosis amino-bisphosphonate drug." P.D. Tzanavaras, C.K. Zacharis, G. Theodoridis*, Ε.Α. Kalaitzantonakis and A. Voulgaropoulos Anal. Chim. Acta, 547 (2005) 98. |
[43] | "Determination of orthophosphate in urine by sequential injection analysis with on-line dilution and photometric detection." D.G. Themelis*, A. Economou, A. Tsiomlektsis and P.D. Tzanavaras Anal. Biochem., 330 (2004) 193. |
[44] | "Rapid spectrofluorimetric determination of lisinopril in pharmaceutical tablets using sequential injection analysis." C.K. Zacharis, P.D. Tzanavaras, D.G. Themelis*, G. Theodoridis, A. Economou, P. Rigas Anal. Bioanal. Chem., 379 (2004) 759. |
[45] | "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 (2004) 219. |
[46] | "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 (2004) 69. |
[47] | "Determination of carbimazole and methimazole in pharmaceuticals by flow injection with chemiluminescence detection based on the inhibition of the Cu(II)-catalyzed luminol-hydrogen peroxide reaction." A. Economou*, P.D. Tzanavaras, M. Notou and D.G. Themelis. Anal. Chim. Acta, 505 (2004) 129. |
[48] | "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 (2004) 167. |
[49] | "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 (2003) 321. |
[50] | "Flow injection manifold for the rapid spectrophotometric determination of fosfestrol, following on-line thermal induced digestion by peroxodisulfate ion and using an orthophosphate calibration graph." P.D. Tzanavaras and D.G. Themelis*. Talanta, 59 (2003) 207. |
[51] | "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. Μicrochim. Acta, 142 (2003) 55. |
[52] | "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 (2002) 249. |
[53] | "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 B. Karlberg. Anal. Chim. Acta, 462 (2002) 119. |
[54] | "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 (2002) 244. |
[55] | "Reversed flow-injection manifold for the spectrophotometric determination of captopril based on its inhibitory effect on the Co(II)-2,2΄-dipyridyl-2-pyridylhydrazone complex formation." P.D. Tzanavaras, D.G. Themelis*, A. Economou and G. Theodoridis. Talanta, 57 (2002) 575. |
[56] | "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 (2002) 83. |
[57] | "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." (Part of PhD Thesis) D.G. Themelis* and P.D. Tzanavaras. Anal. Chim. Acta, 452 (2002) 295. |
[58] | "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 (2001) 5152. |
[59] | "Rapid flow-injection spectrophotometric determination of monofluorophosphates in toothpastes after on-line hydrolysis by alkaline phosphatase immobilized on a cellulose nitrate membrane." (Part of PhD thesis) P.D. Tzanavaras and D.G. Themelis*. Analyst, 126 (2001) 1608. |
[60] | "Flow injection manifold for the simultaneous spectrophotometric determination of Fe(II) and Fe(III) using 2,2΄-dipyridyl-2-pyridylhydrazone 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 (2001) 364. |
[61] | "On-line dilution flow injection manifold for the selective spectrophotometric determination of ascorbic acid based on the iron(II)-2, 2-dipyridyl-2-pyridyl hydrazone complex formation." D.G. Themelis*, P.D. Tzanavaras and F.S. Kika. Talanta, 55 (2001) 127. |
[62] | "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 (2001) 971. |
[63] | "Flow injection manifold for the direct spectrophotometric determination of bismuth in pharmaceutical products using methylthymol blue as colour forming agent." D.G. Themelis*, P.D. Tzanavaras and J.K. Papadimitriou. Analyst, 126 (2001) 247. |
[64] | "Simultaneous spectrophotometric determination of fluoride and monofluorophosphate ions in toothpastes using a reagent-injection manifold." (Part of PhD Thesis) D.G. Themelis* and P.D. Tzanavaras. Anal. Chim. Acta, 429 (2001) 113. |
[65] | "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." (Part of PhD Thesis) D.G. Themelis* and P.D. Tzanavaras. Anal. Chim. Acta, 428 (2001) 23. |
[66] | "Normal and differential demasking flow injection manifold for the direct spectrophotometric deterimnation 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 (2000) 2106. |
[67] | "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 (1999) 259. |