Pure and Applied Chemistry

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• Çubuk Demiralay Ebru, Koç Duygu, Daldal Y. Doğan, Alsancak Güleren, Ozkan Sibel A.: Determination of chromatographic dissociation constants of some carbapenem group antibiotics and quantification of these compounds in human urine. Biomed. Chromatogr. 2014, 28, 660. <http://dx.doi.org/10.1002/bmc.3085>
• Demiralay Ebru Çubuk, Üstün Zehra, Daldal Y. Doğan: Estimation of thermodynamic acidity constants of some penicillinase-resistant penicillins. Journal of Pharmaceutical and Biomedical Analysis 2014, 91, 7. <http://dx.doi.org/10.1016/j.jpba.2013.12.008>
• Kurbanoglu Sevinc, Palabiyik Burcin Bozal, Gumustas Mehmet, Şanlı Senem, Uslu Bengi, Ozkan Sibel A.: DEVELOPMENT AND VALIDATION OF A STABILITY-INDICATING RP-LC METHOD FOR THE DETERMINATION OF ANTICANCER DRUG EPIRUBICIN IN PHARMACEUTICALS. Journal of Liquid Chromatography & Related Technologies 2014, 37, 1583. <http://dx.doi.org/10.1080/10826076.2013.803202>
• Stergiou Panagiota-Yiolanda, Foukis Athanasios, Filippou Michalis, Koukouritaki Maria, Parapouli Maria, Theodorou Leonidas G, Hatziloukas Efstathios, Afendra Amalia, Pandey Ashok, Papamichael Emmanuel M: Advances in lipase-catalyzed esterification reactions. Biotechnology Advances 2013, 31, 1846. <http://dx.doi.org/10.1016/j.biotechadv.2013.08.006>
• Tavallali Hossein, Deilamy-Rad Gohar, Parhami Abolfath, Mousavi Seyede Zahra: A novel development of dithizone as a dual-analyte colorimetric chemosensor: Detection and determination of cyanide and cobalt (II) ions in dimethyl sulfoxide/water media with biological applications. Journal of Photochemistry and Photobiology B: Biology 2013, 125, 121. <http://dx.doi.org/10.1016/j.jphotobiol.2013.05.013>
• Kılıç H.: Electronic absorption study on hydration, solvation behavior for some keto and thioketo pyrimidine derivatives. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2013, 104, 328. <http://dx.doi.org/10.1016/j.saa.2012.11.089>
• Monte-Pérez Inés, Sosa Ana M., Bernès Sylvain, Aliaga-Alcalde Núria, Ugalde-Saldívar Víctor M., Gasque Laura: pH-Dependent Imidazolato Bridge Formation in Dicopper Complexes: Magnetic, Electrochemical, and Catalytic Repercussions. Eur. J. Inorg. Chem. 2012, 2012, 4739. <http://dx.doi.org/10.1002/ejic.201200167>
• Secilmis-Canbay Hale, Cubuk-Demiralay Ebru, Alsancak Guleren, Ozkan Sibel A.: The Combined Effect of the Organic Modifier Content and pH of the Mobile Phase on the Chromatographic Behavior of Some Arylpropionic and Arylacetic Acids to Optimize Their Liquid Chromatographic Determinations. Chromatographia 2012, 75, 711. <http://dx.doi.org/10.1007/s10337-012-2255-z>
• Demiralay Ebru Çubuk, Koç Duygu, Daldal Y. Doğan, Çakır Cansel: Determination of chromatographic and spectrophotometric dissociation constants of some beta lactam antibiotics. Journal of Pharmaceutical and Biomedical Analysis 2012, 71, 139. <http://dx.doi.org/10.1016/j.jpba.2012.06.023>
• Tavallali Hossein, Deilamy Rad Gohar, Parhami Abolfath, Abbasiyan Elham: A novel and efficient colorimetric chemosensor for detection and determination of biologically important ions in DMSO/H2O media using bromo pyrogallol red chemosensors with analytical applications. Journal of Photochemistry and Photobiology B: Biology 2012, 115, 51. <http://dx.doi.org/10.1016/j.jphotobiol.2012.06.010>
• Han Shu-ying, Liang Chao, Zou Kuan, Qiao Jun-qin, Lian Hong-zhen, Ge Xin: Influence of variation in mobile phase pH and solute pKa with the change of organic modifier fraction on QSRRs of hydrophobicity and RP-HPLC retention of weakly acidic compounds. Talanta 2012, 101, 64. <http://dx.doi.org/10.1016/j.talanta.2012.08.051>
• Yan Qing Hua, Yang Li, Zhang Hui Rong, Niu Li Yuan: A SENSITIVE AND VALIDATED METHOD FOR DETERMINATION OF FOUR ADDITIVES IN HAM SAUSAGE BY HPLC-DAD METHOD. J Liquid Chromat 2012, 35, 268. <http://dx.doi.org/10.1080/10826076.2011.597075>
• Touil Mounia, Elhabiri Mourad, Lachkar Mohammed, Siri Olivier: Synthesis and Properties of the Emerging Azacalix[14]arenes. Eur J Org Chem 2011, 2011, 1914. <http://dx.doi.org/10.1002/ejoc.201001432>
• Sanli Nurullah, Sanli Senem, Sızır Umit, Gumustas Mehmet, Ozkan Sibel A.: Determination of pK a Values of Cefdinir and Cefixime by LC and Spectrophotometric Methods and Their Analysis in Pharmaceutical Dosage Forms. Chroma 2011, 73, 1171. <http://dx.doi.org/10.1007/s10337-011-2013-7>
• Sanli Senem, Sanli Nurullah, Gumustas Mehmet, Ozkan Sibel A., Karadas Nurgul, Aboul-Enein Hassan Y.: Simultaneous Estimation of Ceftazidime and Ceftizoxime in Pharmaceutical Formulations by HPLC Method. Chromatogr Suppl 2011, 74, 549. <http://dx.doi.org/10.1007/s10337-011-2116-1>
• Stoica Daniela, Yardin Catherine, Ebrard Géraldine, Vaslin-Reimann Sophie, Fisicaro Paola: Evaluation of the Standard Potential of the Ag/AgCl Electrode in a 50 wt-% Water–Ethanol Mixture. J Solution Chem 2011, 40, 1819. <http://dx.doi.org/10.1007/s10953-011-9758-3>
• Canbay H. Seçilmiş, Demiralay E. Cubuk, Alsancak G., Ozkan Sibel A.: Chromatographic Determination of pK_a Values of Some Water-Insoluble Arylpropionic Acids and Arylacetic Acids in Acetonitrile + Water Media. J Chem Eng Data 2011, 56, 2071. <http://dx.doi.org/10.1021/je1010533>
• Palabiyik İsmail M., Şanli Nurullah, Guzel-Seydim Zeynep B., Alsancak Güleren, Şanli Senem: Optimization of the experimental conditions for macrolide antibiotics in high performance liquid chromatography by using response surface methodology and determination of tylosin in milk samples. J Anal Chem 2011, 66, 838. <http://dx.doi.org/10.1134/S1061934811090152>
• Demiralay Ebru Cubuk, Cubuk Burcu, Ozkan Sibel A., Alsancak Guleren: Combined effect of polarity and pH on the chromatographic behavior of some angiotensin II receptor antagonists and optimization of their determination in pharmaceutical dosage forms. J  Pharm Biomed Anal 2010, 53, 475. <http://dx.doi.org/10.1016/j.jpba.2010.05.020>
• KANZAKI Ryo, SONG Xuedan, ISHIGURO Shin-ichi, UMEBAYASHI Yasuhiro: Electrochemistry 2010, 78, 687. <http://dx.doi.org/10.5796/electrochemistry.78.687>
• Demiralay Ebru Cubuk, Alsancak Guleren, Ozkan Sibel A.: Determination of pK _a values of nonsteroidal antiinflammatory drug-oxicams by RP-HPLC and their analysis in pharmaceutical dosage forms. J Sep Science 2009, 32, 2928. <http://dx.doi.org/10.1002/jssc.200900234>
• Spitzer Petra, Fisicaro Paola, Seitz Steffen, Champion Rachel: pH and electrolytic conductivity as parameters to characterize bioethanol. Accred Qual Assur 2009, 14, 671. <http://dx.doi.org/10.1007/s00769-009-0565-0>
• Falciola Luigi, Fierro Annamaria, Mussini Patrizia Romana, Mussini Torquato, Rossi Manuela, Dumitrel Doru: Medium Effects and Determination of Primary and Secondary Standards for pH Measurements in (Glycerol + Water) Solvent Media at Normal and Subzero Temperatures, With Characterization of Appropriate Salt Bridges†. J. Chem. Eng. Data 2009, 54, 286. <http://dx.doi.org/10.1021/je800310a>
• Máriássy Michal, Pratt Kenneth W, Spitzer Petra: Major applications of electrochemical techniques at national metrology institutes. Metrologica 2009, 46, 199. <http://dx.doi.org/10.1088/0026-1394/46/3/007>
• BARBOSA J., HERNÁNDEZ-CASSOU S., SANZ-NEBOT V., TORO I.: Variation of acidity constants of peptides in acetonitrile-water mixtures with solvent composition: effect of preferential solvation. J Pept Res 2009, 50, 14. <http://dx.doi.org/10.1111/j.1399-3011.1997.tb00615.x>
• Zevatskii Yu. E., Samoilov D. V., Mchedlov-Petrosyan N. O.: Conthemporary methods for the experimental determination of dissociation constants of organic acids in solutions. Russ J Gen Chem 2009, 79, 1859. <http://dx.doi.org/10.1134/S1070363209090138>
• Berezkin V. G., Sumina E. G., Shtykov S. N., Atayan V. Z., Zagniboroda D. A., Nekhoroshev G. A.: Effect of Chamber Gas Phase on Mobile Phase pH and on Separation Efficiency in TLC. A New Mode of Chromatography. Chroma 2006, 64, 105. <http://dx.doi.org/10.1365/s10337-006-0836-4>
• IUPAC Recommendations for Reference Standard Samples in pH Measurements. J Anal Chem 2005, 60, 1087. <http://dx.doi.org/10.1007/s10809-005-0244-1>
• Nyíri Judit, Noszál Béla: Neighbor Group Hydration Effects on Carboxylate Basicities in Partly Aqueous Solutions. J Solution Chem 2005, 34, 1227. <http://dx.doi.org/10.1007/s10953-005-8015-z>
• Sanz-Nebot V, Andón B, Barbosa J: Characterization of metallothionein isoforms from rabbit liver by liquid chromatography coupled to electrospray mass spectrometry. J Chromatogr B 2003, 796, 379. <http://dx.doi.org/10.1016/j.jchromb.2003.08.024>
• Beltrán J.L., Sanli N., Fonrodona G., Barrón D., Özkan G., Barbosa J.: Spectrophotometric, potentiometric and chromatographic pKa values of polyphenolic acids in water and acetonitrile–water media. Analytica Chimica Acta 2003, 484, 253. <http://dx.doi.org/10.1016/S0003-2670(03)00334-9>
• Ballesteros O., Toro I., Sanz-Nebot V., Navalón A., Vílchez J. L., Barbosa J.: Optimization of the composition and pH of the mobile phase used for separation and determination of a series of quinolone antibacterials regulated by the European Union. Chroma 2002, 56, 413. <http://dx.doi.org/10.1007/BF02492003>
• Jiménez-Lozano E, Marqués I, Barrón D, Beltrán J.L, Barbosa J: Determination of pKa values of quinolones from mobility and spectroscopic data obtained by capillary electrophoresis and a diode array detector. Analytica Chimica Acta 2002, 464, 37. <http://dx.doi.org/10.1016/S0003-2670(02)00435-X>
• Antonini D, Falciola L, Mussini P.R, Mussini T: Ionization constants ofo-phthalic acid in (propylene carbonate + water) and (ethylene carbonate + water), and thermodynamics of the cellPt|H2|HCl(m)| Hg2Cl2|Hg. K J CHEM THERMODYN 2001, 33, 1473. <http://dx.doi.org/10.1006/jcht.2001.0863>
• Barbosa J, Barrón D, Jiménez-Lozano E, Sanz-Nebot V: Comparison between capillary electrophoresis, liquid chromatography, potentiometric and spectrophotometric techniques for evaluation of pKa values of zwitterionic drugs in acetonitrile–water mixtures. Analytica Chimica Acta 2001, 437, 309. <http://dx.doi.org/10.1016/S0003-2670(01)00997-7>
• Canals Immaculada, Oumada Fadoua Z., Rosés Martı́, Bosch Elisabeth: Retention of ionizable compounds on HPLC. 6. pH measurements with the glass electrode in methanol–water mixtures. J Chromatogr A 2001, 911, 191. <http://dx.doi.org/10.1016/S0021-9673(00)01271-1>
• Antonini D, Falciola L, Mussini P.R, Mussini T: Medium effects, comparability and predictability of pH-standards in aqueous+organic solvent mixtures: behavior of the (ethylene carbonate+water) and (propylene carbonate+water) systems. Journal of Electroanalytical Chemistry 2001, 503, 153. <http://dx.doi.org/10.1016/S0022-0728(01)00345-X>
• Barbosa J., Barrón D., Cano J., Jiménez-Lozano E., Sanz-Nebot V., Toro I.: Evaluation of electrophoretic method versus chromatographic, potentiometric and absorptiometric methodologies for determing pKa values of quinolones in hydroorganic mixtures. J  Pharm Biomed Anal 2001, 24, 1087. <http://dx.doi.org/10.1016/S0731-7085(00)00561-6>
• Barrón D., Jiménez-Lozano E., Barbosa J.: Capillary electrophoresis in mixed aqueous-organic media: Effect of tetrahydrofuran on mobilities, dissociation constants and separation of a series of quinolones. Chroma 2000, 52, 395. <http://dx.doi.org/10.1007/BF02535709>
• Janoš Pavel: Reversed-phase liquid chromatography of metal chelates of 4-(2-pyridylazo) resorcinol: retention model and its verification. Analytica Chimica Acta 2000, 414, 113. <http://dx.doi.org/10.1016/S0003-2670(00)00836-9>
• Barrón Dolores, Jiménez-Lozano Eulalia, Barbosa José: Electrophoretic behaviour of zwitterionic compounds in capillary electrophoresis. Analytica Chimica Acta 2000, 415, 83. <http://dx.doi.org/10.1016/S0003-2670(00)00884-9>
• Barrón D., Barbosa J.: Acid–base behaviour of substituted phenolic substances and resolution of acid strength in tetrahydrofuran. Analytica Chimica Acta 2000, 403, 339. <http://dx.doi.org/10.1016/S0003-2670(99)00635-2>
• Barrón D., Buti S., Barbosa J.: Standardization of potentiometric sensors and acid–base behaviour of a series of bases in nitrobenzene. Analytica Chimica Acta 2000, 403, 349. <http://dx.doi.org/10.1016/S0003-2670(99)00636-4>
• Rosés M: Dissociation constants of phenols in methanol–water mixtures. J Chromatogr A 2000, 867, 45. <http://dx.doi.org/10.1016/S0021-9673(99)01139-5>
• Barbosa José, Barrón Dolores, Butí Salvador: Autoprotolysis Constants and Standardization of pH Measurements in Tetrahydrofuran-Water Mixtures. Electroanalysis (N Y ) 1999, 11, 627. <http://dx.doi.org/10.1002/(SICI)1521-4109(199907)11:9<627::AID-ELAN627>3.0.CO;2-V>
• Barbosa J, Bergés R, Sanz-Nebot V, Toro I: Chromatographic behavior of ionizable compounds in liquid chromatography. Part 2. Standardization of potentiometric sensors and effect of pH and ionic strength on the retention of analytes using acetonitrile–water mobile phases. Analytica Chimica Acta 1999, 389, 43. <http://dx.doi.org/10.1016/S0003-2670(99)00132-4>
• Barbosa J, Barrón D, Butı́ S: Chromatographic behaviour of ionizable compounds in liquid chromatography. Part 1. pH scale, pKa and pHS values for standard buffers in tetrahydrofuran–water. Analytica Chimica Acta 1999, 389, 31. <http://dx.doi.org/10.1016/S0003-2670(99)00133-6>
• Barbosa J, Marqués I, Barrón D, Sanz-Nebot V: The application of factor analysis to solvatochromic parameters and pHs values for the standardization of potentiometric sensors in mobile phases used in liquid chromatography. Trends in Analytical Chemistry 1999, 18, 543. <http://dx.doi.org/10.1016/S0165-9936(99)00131-4>
• Marqués I, Fonrodona G, Butı́ S, Barbosa J: Solvent effects on mobile phases used in liquid chromatography: factor analysis applied to protonation equilibria and solvatochromic parameters. Trends in Analytical Chemistry 1999, 18, 472. <http://dx.doi.org/10.1016/S0165-9936(99)00134-X>
• Barrón D., Butı́ S., Ruiz M., Barbosa J.: Evaluation of acidity constants and preferential solvation in tetrahydrofuran–water mixtures. J Polyhedron 1999, 18, 3281. <http://dx.doi.org/10.1016/S0277-5387(99)00265-X>
• Barbosa J., Barrón D., Butı́ S., Marqués I.: Assignment of pHS values of reference buffer solutions for standardization of potentiometric sensors in THF–water. J Polyhedron 1999, 18, 3361. <http://dx.doi.org/10.1016/S0277-5387(99)00274-0>
• The quantity ‘pH’. Journal of Electroanalytical Chemistry 1998, 441, 293. <http://dx.doi.org/10.1016/S0022-0728(97)00433-6>
• Barbosa J, Barrón D, Bergés R, Buti S, Sanz-Nebot V: Evaluation of the effect of organic modifier on pK values of diuretics in mobile phases used in LC. Int J of Pharmaceutics 1998, 160, 173. <http://dx.doi.org/10.1016/S0378-5173(97)00303-7>
• Announcement of the IUPAC commission concerning pH. J Solution Chem 1997, 26, 1011. <http://dx.doi.org/10.1007/BF02768057>
• Muinasmaa Urmas, Ràfols Clara, Bosch Elisabeth, Rosés Martí: Ionic equilibria in aqueous organic solvent mixtures the dissociation constants of acids and salts in tetrahydrofuran/water mixtures. Analytica Chimica Acta 1997, 340, 133. <http://dx.doi.org/10.1016/S0003-2670(96)00516-8>
• Barbosa J., Toro I., Sanz-Nebot V.: Acid-base behaviour of tripeptides in solvents used in liquid chromatography. Correlation between pK values and solvatochromic parameters of acetonitrile-water mixtures. Analytica Chimica Acta 1997, 347, 295. <http://dx.doi.org/10.1016/S0003-2670(97)00163-3>
• Barbosa J., Marqués I., Fonrodona G., Barrón D., Bergés R.: Factor analysis applied to correlation between acidity constants of series of diuretics, quinolones and buffers, with solvatochromic parameters in water-acetonitrile mixtures. Analytica Chimica Acta 1997, 347, 385. <http://dx.doi.org/10.1016/S0003-2670(97)00172-4>
• Barbosa J., Fonrodona G., Marqués I., Sanz-Nebot V., Toro I.: Solvent effects on protonation equilibria of peptides and quinolones by factor analysis applied to the correlation between dissociation constants and solvatochromic parameters in acetonitrile-water mixtures. Analytica Chimica Acta 1997, 351, 397. <http://dx.doi.org/10.1016/S0003-2670(97)00234-1>
• The quantity “pH”: call for experts. Analytica Chimica Acta 1997, 351, I. <http://dx.doi.org/10.1016/S0003-2670(97)90009-X>
• Barbosa J., Fonrodona G., Marqués I., Butí S., Toro I.: Factor analysis applied to the correlation between dissociation constants and solvatochromic parameters in water-acetonitrile mixtures. Trends in Analytical Chemistry 1997, 16, 104. <http://dx.doi.org/10.1016/S0165-9936(96)00101-X>
• Barbosa J., Bergés R., Toro I., Sanz-Nebot V.: Dissociation constants and preferential solvation of fluoroquinolones in hydroorganic mixtures used in LC. Int J of Pharmaceutics 1997, 149, 213. <http://dx.doi.org/10.1016/S0378-5173(97)04871-0>
• Rosés M., Bonet M.J., Bosch E.: Conductometric determination of dissociation constants of several acids and their tetrabutylammonium salts in propan-2-ol/water mixtures. Analytica Chimica Acta 1996, 333, 241. <http://dx.doi.org/10.1016/0003-2670(96)00286-3>
• Arrigoni F., Mussini P. R., Mussini T., Rondinini S.: Standards for pH measurements and first ionization constants ofo-phthalic acid. Methylcellosolve-water solvent mixtures from −10 to 45°C. J Solution Chem 1995, 24, 1265. <http://dx.doi.org/10.1007/BF00972832>
• Barrón D., Pascual J. A., Segura J., Barbosa J.: Prediction of LC retention of steroids using solvatochromic parameters. Chroma 1995, 41, 573. <http://dx.doi.org/10.1007/BF02269722>
• Barrón D., Pascual J. A., Segura J., Barbosa J.: Prediction of LC retention of steroids using solvatochromic parameters. Chroma 1995, 41, 573. <http://dx.doi.org/10.1007/BF02688088>
• Barbosa J., Bergés R., Sanz-Nebot V.: Linear Solvation Energy Relationships in Reversed-Phase Liquid Chromatography. Prediction of Retention of Several Quinolones. Journal of Liquid Chromatography 1995, 18, 3445. <http://dx.doi.org/10.1080/10826079508010462>
• Kövári Endre, Krämer Roland: Zink(II)-Komplexe des Ammonium-funktionalisierten 2,2′-Bipyridins [6,6′-{Me2N(H)CH2C≡C}2bpy](ClO4)2 und des verwandten Liganden 6,6′-(CH3CH2CH2C≡C)2bpy. Chem Ber 1994, 127, 2151. <http://dx.doi.org/10.1002/cber.1491271110>
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• Herrenknecht Christine, Ivanovic Darko, Guernet-Nivaud Elisabeth, Guernet Michel: Dependence of the retention of pyrazolidine-3,5-diones on eluent pH in reversed-phase high-performance liquid chromatography. J  Pharm Biomed Anal 1990, 8, 1071. <http://dx.doi.org/10.1016/0731-7085(90)80173-M>
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