1986 - 1999

1986 – 1999

- by Editor
  1. Kubota, L.T.; Miyazawa, M.; Ishikawa, D.N. & Pavan, M.A., “Método Modificado de Determinação por Ferron”, Pesq. Agropec. Bras., 21(12), 1986, 1297.
  2. Kubota, L.T.; Ionashiro, M. & Moreira, J.C., “Titulação Complexiométrica de Cobalto, Níquel e Cobre em Meio de Etanol Absoluto e na Presença de Ácido Cítrico”, Ecl. Quim. 11/12, 1986/87, 89.
  3. Kubota, L.T.; Moreira, J.C. & Ionashiro, M., “Titulação Complexiométrica de Zinco (II) e Cádmio (II) em Meio de Etanol Absoluto na Presença de Ácido Cítrico”, Ecl. Quim. 13, 1988, 19.
  4. Vollet, D.R.; Moreira, J.C.; Kubota, L.T.; Varela, J.A. & Gushikem, Y., “Study of the Structural Change in Silica Gel Modified with Organofunctional Groups by Small Angle X-Ray Scattering Technique”, Colloid and Surfaces, 40, 1989, 1.
  5. Kubota, L.T.; Moreira, J.C. & Gushikem, Y., “Adsorption of Metals Ions from Ethanol on an Iminosalicyl Modified Silica Gel”, Analyst, 114, 1989, 1385.
  6. Kubota, L.T.; Gushikem, Y. & Moreira, J.C., “Adsorption of Cr (VI) by Titanium (IV) Oxide Coated on a Silica Gel Surface”, Analyst, 116, 1991, 281.
  7. Kubota, L.T.; Castro, S.C.; Gushikem, Y. & Moreira, J.C., “Preparation and Characterization of Ti (IV) Oxide Grafted onto a Silica Gel Surface”, Colloid and Surfaces, 57, 1991, 11.
  8. Gushikem, Y.; Peixoto, C.R.M. & Kubota, L.T., “Exchange Property of Titanium (IV) and Zirconium (IV) Oxides Grafted on Silica Surfaces. Sorption of Chromium (VI) from an Acid Solution”, New Development in Ion Exchange, Kodansha Elsevier, Tokyo, 1991, 607.
  9. Zaldivar, G.A.P.; Gushikem, Y. & Kubota, L.T., “Tin (IV) Oxide Grafted on Silica Gel Surface as Conducting Substrate base for Cupric Hexacyanoferrate”, Journal Electroanalytical Chemistry, 318, 1991, 247.
  10. Kubota, L.T. & Gushikem, Y., “Cyclic Voltammetry Study of [Fe(CN)6]3-/4- Immobilized on Silica Gel Surface Coated with Titanium (IV) Oxide”, Electrochimica Acta, 37(13), 1992, 2477.
  11. Andreotti, E.I.S.; Gushikem, Y. & Kubota, L.T., “Electron Mediator Property of [Fe(CN)6]3-/4- Immobilized on Zr (IV) Oxide Coated on a Silica Gel Surface”, Journal Brazilian Chemical Society, 3(1&2), 1992, 21.
  12. Kubota, L.T. & Gushikem, Y., “Cyclic Voltammetry Study of Copper and Nickel Hexacyanoferrate immobilized on a Silica Gel Surface Coated with Titanium (IV) Oxide”, Journal of  Electroanalytical Chemistry, 362, 1993, 219.
  13. Fernandes, J.R.; Kubota, L.T.; Gushikem, Y. & Oliveira Neto, G. de, “A New Sensor for Perchlorate Ion”, Analytical Letters, 26(12), 1993, 2555.
  14. Kubota, L.T.; Perez, J.; Gushikem, Y. & Tanaka, A.A., “Electrochemical Properties of Iron Phthalocyanine Immobilized on Titanium (IV) Oxide Coated on Silica Gel Surface”, Langmuir, 11, 1995, 1009.
  15. Peixoto, C.R.M.; Gushikem, Y. & Kubota, L.T., “[Co(sepulchrate)]3+ Immobilized on Silica Gel, Silica Gel Chemically Modified with Zirconium (IV) Oxide and Silica Gel Chemically Modified with Zirconium (IV) Phosphate”,  Journal Brazilian Chemical Society,  6, 1995, 83.
  16. Lorencetti, L.L.; Gusikem, Y.; Kubota, L.T. & Oliveira Neto, G. de, “Potentiometric Study Using Silica gel Chemically Modified with Pyridinium Ion as Membrane for Perchlorate Ion”, MikroChimica Acta, 117 (3-4) 1995, 239.
  17.  Kubota, L.T.; Gushikem, Y.; Mansanares, A. & Vargas, H., “Sorption of Hydrogen Peroxide by Titanium (IV) Oxide Grafted on Silica Gel Surface”, Journal Colloid and Interface Science, 173 (2), 1995, 372.
  18. Kubota, L.T.; Milagres, B.G.; Reis, E.L. & Oliveira Neto, G. de; “A New Amperometric Detector for Flow Injection Analysis”, J. of Flow Injection Analysis, 12 (2), 1995, 223.
  19. Peixoto, C.R.M.; Kubota, L.T. & Gushikem, Y.; “Use of [Ru(edta)H2O]1- Immobilized on Zirconium (IV) Oxide Coated Silica Gel Surface as an Amperometric Sensor for Oxygen in Water”, Analytical Proceeding, 32, 1995, 503.
  20. Milagres, B.G.; Kubota, L.T. & Oliveira Neto, G. de, “Immobilized Ferrocene and Glucose Oxidase on Titanium (IV) Oxide Grafted onto a Silica gel Surface and Its Application as an Amperometric Glucose Biosensor”,  Electroanalysis, 8, 1996, 489.
  21. Kubota, L.T.; Gouvea, F.; Andrade, A.N.; Milagres, B.G. & Oliveira Neto, G. de; “Electrochemical Sensor for NADH Based on Meldola’s Blue Immobilized on Silica Gel Modified with Titanium Phosphate”, Electrochimica Acta, 41, 1996, 1465.
  22. Peixoto, C.R.M.; Gushikem, Y.; Rodrigues Filho, U.P.; Kubota, L.T. & Stlader, E.; “Study of Electrochemical Properties and Ligand Substitution Reactions of the [Ru(edta)(H2O)]-1 Complex Immobilized on a Silica gel Surface coated with Zirconium (IV) Oxide”, J. Colloid Interf. Sci., 184, 1996, 236.
  23. Silva, L.D.; Gushikem, Y. & Kubota, L.T.; “Horseradish Peroxidase immobilized on Titanium (IV) Oxide Coated Cellulose Microfibers. Study of the Enzymatic Activity by Flow Injection System”, Colloids Surf. B. Biointerface, 6, 1996, 309.
  24. Kubota, L.T.; Milagres, B.G.; Gouvea, F. and Oliveira Neto, G. de; “A Modified Carbon Paste Electrode with Silica Gel Coated with Meldoa’s Blue and Salicylate Hydroxilase as Biosensor for Salicylate”, Analytical Letters, 29, 1996, 893.
  25. Garcia, C.A.B.; Oliveira Neto, G. de; Kubota, L.T. and Grandin, L.A.; “A New Amperometric Biosensor for Fructose Using a Carbon Paste Electrode Modified with Silica Gel Coated with Meldola’s Blue and Fructose 5-Dehydrogenase”, Journal Electroanalytical Chemistry, 418, 1996, 147.
  26. Fernandes, J.R.; Oliveira Neto, G. de; Tubino, M. and Kubota, L.T.; “Determination of Oxalate in Grass by FIA with a Spectrophotometric Detection System Using a Two Enzyme Reactor”, Analytical Science, 12, 1996, 443.
  27. Cavachiolli, G.P.; Kawachi, E.Y.; Kubota, L.T. and Bertran, C.A.; “Hydroxyapatite Based Electrode: A New Sensor for Phosphate”, Analytical Communications, 33, 1996, 227.
  28. Kubota, L.T.; Gambero, A.; Santos, A.A. and Granjeiro, J.M.; “Study of the adsorption of Some Amino Acids by Silica Chemically Modified with Aminobenzenesulfonic and Phosphate Groups”, J. Colloid Interf. Sci., 183, 1996, 453.
  29. Fernandes, J.R.; Oliveira Neto, G. de; Tubino, M. & Kubota, L.T.; “Use of Sorghum Seeds Into a Stirring Bar Reactor as a Biocatalyst for Oxalate Determination”, Analytical Communication, 33, 1996, 397.
  30. Oliveira Neto, G. de; Tubino, M.; Godinho, E.S.; Aleixo, L.M.; Kubota, L.T. & Fernandes, J.R.; “Oxalate Determination in Urine Using an Immobilized Enzyme on Sorghum Vulgare Seeds in a Flow Injection Conductimetric System”, Journal Brazilian Chemical Society, 8, 1997, 47.
  31. Gambero, A.; Kubota, L.T.; Gushikem, Y.; Airoldi, C.; Granjeiro, J.M.; Taga, E.M. and Alcântara, E.F.C.; “Use of Chemically Modified Silica with b-Diketoamine Groups for Separation of a-Lactoalbumin from Bovine Milk Whey by Affinity Chromatography”, Journal Colloid and Interface Science, 185, 1997, 313.
  32. Kubota, L.T.; Kleinke, M.U.; Mello, C.; Bueno, M.I.M. and Oliveira Neto, G. de; “An Experimental Evidence of Chaotic Regime in a Salicylate Biosensor”, Chem. Phys. Lett., 264, 1997, 662.
  33. Milagres, B. G.; Oliveira Neto, G. de; Kubota, L.T.and Yamanaka H.; “A New Amperometric Biosensor for Salicylate Based on Salicylate Hydroxylase Immobilized on Polipyrrole Film Doped with Hexacyanoferrate”. Analytica Chimica Acta, 347, 1997, 35.
  34. Rocha, R.F.; Rossato, S.S.; Bruns, R.E. & Kubota, L.T.; “Factorial Design Optimization of  Electrochemical Properties of  Methylene Blue Adsorbed on Silica Surface”, J. Electroanal. Chem., 433, 1997, 73.
  35. Duarte, M.M.M.B.; Oliveira Neto, G. de; Kubota, L.T.; Filho, J.L.L.; Pimentel, F.; Lima, F. and Lins, V.; “Application of Factorial Design for Optimization of  a FIA System Using a Penicillinase Reactor for Penicillin Determination”,  Anal. Chim. Acta, 350, 1997, 353.
  36. Pessoa, C.; Gushikem, Y.; Kubota, L.T. and Gorton, L.; “Preliminary Electrochemical Study of Phenothiazines and Phenoxazines immobilized on zirconium Phosphate”, J. Electroanal. Chem., 431, 1997, 23.
  37. Pessoa, C.; Gushikem, Y. and Kubota, L.T.; “Electrochemical Study of Methylene Blue Immobilized in Zirconium Phosphate”, Electroanalysis, 9, 1997, 800.
  38. Rover, L.; Oliveira Neto, G. de e Kubota, L.T.; “Transdutores Potenciométricos a Base de Polímeros Condutores: Aplicações Analíticas”, Química Nova, 20, 1997, 519.
  39. Perez, E.F.; Oliveira Neto, G. de; Tanaka, A.A. and Kubota, L.T.; Electrocatalytic Oxidation of Cysteine by Nickel Tetrasulfonated Phthalocyanine Immobilized on Silica Gel Modified with Titanium (IV) Oxide”, Electrochimica Acta, 43, 1998, 1665.
  40. Fernandes, J.C.B.; Oliveira Neto, G.de and Kubota, L.T.; “The use of column with modified silica for Interfering retention in a FIA Spectrophotometric method for direct   determination of L-ascorbic acid in medicine”, Anal. Chim. Acta, 366, 1998, 11.
  41. Rover Jr.; L.; Garcia, C.A.B.; Oliveira Neto, G. de; Galembeck, F. and Kubota, L.T.; “Acetylsalicylic acid determination in pharmaceuticals samples by FIA-potentiometric system using tubular electrode with EVA-membrane”, Anal. Chim. Acta, 366, 1998, 103.
  42. Nagata, N.; Bueno, M.I.S.; Kubota, L.T. and Peralta-Zamora, P.; “Adsorptions Parameters of Cd(II), Pb(II) and Hg(II) on Zirconium (IV) Phosphate Chemically grafted on Silica gel surface”, J. Colloid Interface Science, 200, 1998, 121.
  43. Guerra, S.V.; Xavier, C.R.; Nakagaki, S. and Kubota, L.T.; “Electrochemical Property of Copper Porphyrin Synthesized into Zeolite Cavity: A sensor for hydrazine”, Electroanalysis, 10(7) 1998, 402.
  44. Perez, E.F.; Tanaka, A.A.; Kubota, L.T. and Oliveira Neto, G. de; “Electrochemical sensor for hydrazine based on silica modified with nickel tetrasulfonated phthalocyanine”, Electroanalysis 10(2), 111-115, 1998.
  45. Gil, E.S.; Najar, R. and Kubota, L.T.; “Potencialidades da utilização de compostos de ródio na construção de sensores: Uma breve revisão”, Química Nova, 21(6), 755-760, 1998.
  46. Carvalho, R.M.; Rohwedder, J.; Csöregi, E.; Gorton, L. and Kubota, L.T.; “Effect on Electrochemistry of Hexacyanoferrate at Carbon Fibers after Pretreatment with Titanium Chloride”, J. Electroanal. Chem., 457(1-2) 1998, 83-88.
  47. Kawachi, E. Y.; Bertran, C.A. and Kubota, L.T.; “Interface potential of calcium phosphate ceramics in biological fluid”, Biomaterial, 19 (24)2329-2333, 1998.
  48. Garcia, C.A.B.; Oliveira Neto, G. de and Kubota, L.T.; “A Comparative study of two ways of enzyme immobilization for preparation fructose biosensor”, Anal. Chim. Acta, 374(2-3), 1998, 201-208.
  49. Rover Jr, L.; Fernandes, J.C.B.; Oliveira Neto, G. de; Kubota, L.T.; Katekawa, E. and Serrano, S.H.P.; Study of NADH Stability in different buffer for Factorial Design”, Anal. Biochem., 260, 1998, 50.
  50. Wang, J.; Fernandes, J.R. and Kubota, L.T.; “Polishable and Renewable DNA Hybridization Biosensors”, Anal. Chem., 70(17), 1998, 3699.
  51. Nagata, N.; Bueno, M.I.S.; Kubota, L.T. and Peralta-Zamora, P.; “Optimization of Pre-concentration Conditions and Selectivity Evaluation of modified Silicas Using a Factorial Design”, Anal. Sci., 15, 1999, 761-766.
  52. Carvalho, R.M.; Rohwedder, J. and Kubota, L.T.; “Fibras de Carbono: Aplicações em Eletroanalítica como Material Eletródico”, Química Nova, 22(4) 1999, 591.
  53. Fernandes, J.C.; Oliveira Neto, G. de and Kubota, L.T.; “Potentiometric Biosensor for L-Ascorbic Acid Based on Ascorbate Oxidase of Natural Source Immobilized on Ethylene-Vinyl-Acetate Membrane”, Anal. Acta, 390, 1999, 3.
  54. Kubota, L.T. and Gorton, L.; “Electrochemical Investigations of the Reaction Mechanism and Kinetics Between NADH and Riboflavin Immobilized on Amorphous Zirconium Phosphate, J. Sol. State Electrochem., 3, 1999, 370.
  55. Kubota, L.T. and Gorton, L.; “Electrochemical behaviour of FAD and FMN immobilised on TiO2 modified carbon fibres supported by ATR-IR spectroscopy of FMN on TiO2”, Bioelectrochemistry Bioenergetic, 1998, 47:(1)39-46.
  56. Rosatto, S.S.; Kubota, L.T. and Oliveira Neto, G. de; “Peroxidase phenol biosensor based on direct electron transfer blocking of peroxidases”. Anal. Chim. Acta, 390, 1999, 65.
  57. Rover, L.; Kubota, L.T. and Oliveira Neto, G. de; “Electrochemical biosensors for salycilate and its derivatives determination in clinical and pharmaceutical samples”, Electroanalysis, 11, 1999, 527-533.
  58. Guerra, S.V.; Kubota, L.T.; Xavier, C.R. and Nakagaki, S.; “Experimental optimization of hydrazine detection in FIA System using an electrode modified with copper porphyrin zeolite“, Anal. Sci., 15, 1999, 1231-1234.
  59. Fernandes, J.C.; Oliveira Neto, G. de and Kubota, L.T.; Potentiometric sensor for L-Ascorbic Acid Based on Copper (II) occluded on Ethylene-Vinyl-Acetate Membrane, Electroanalysis, 11(7), 1999, 475.
  60. Rover, L.; Fernandes, J.C.B., Kubota, L.T. and Oliveira Neto, G. de, “Determination of acetylsalicylic acid by FIA potentiometric in drugs after on-line hydrolysis”, Talanta, 50, 1999, 661.
  61. Kubota, L.T. and Gorton L.; “Electrochemical study of flavins, phenazines, phenoxazines and phenothiazines immobilized on zirconium phosphate”, Electroanalysis, 11, 1999, 719-728.
  62. Gil, E.S.; Iamamoto, N.Y. and Kubota, L.T.; “Imunoensaios aplicados a Química Analítica”, Química Nova, 22, 1999, 874.

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