Departamento de Química Analítica

Artigos em Revistas de Circ. Internac. Espec.

  1. A.L. Pires Valente e F. Augusto, "Enhanced sensitivity of a gas chromatography-microwave induced helium plasma atomic emission detection system (GC-MIP) at the 685.6 nm fluorine emission line", Journal of Microcolumn Separations, 11 (1), 23-27, (1999). [61212]
  2. A.L. Pires Valente, F. Augusto e E.C. Rocha, "Membrane extraction with a sorbent interface (MESI): an efficient and fast method of clean-up of the hollow silicone membrane", Journal of Microcolumn Separations, 11 (1), 29-35, (1999). [61214]
  3. P.L.O. Volpe, A.M. Antunes e R.J. Poppi, "Utilization of multivariate calibration methods for the study of K+ transport through hydrophobic liquid membranas by using isomeric anions", Separation Science and Technology, 34 , 289-303, (1999). [69714]
  4. N. Nagata, M.I.M.S. Bueno, L.T. Kubota e P.G. Peralta Zamora, "Pre-concentration properties of modified silica gel for metal analysis in water by energy dispersive X-ray fluorescence", Analytical Sciences, 15 (1999), 761-766, (1999). [70962]
  5. C. R. Silva, I.C.S.F. Jardim e C. Airoldi, "New stationary phase prepared by immobilization of a CopperAmine complex on silica and its use for high performance liquid chromatography", Journal of High Resolution Chromatograph, 22 (1999), 103-108, (1999). [72185]
  6. L.T. Kubota e L. Gorton, "Electrochemical investigations of the reaction mechanism and kinetics between NADH and riboflavin immobilized on amorphous zirconium phosphate", Journal of Solid State Electrochemistry, 3 (1999), 370, (1999). [73894]
  7. N. Nagata, P.G. Peralta Zamora, L.T. Kubota e M.I.M.S. Bueno, "Optimization of Pre-concentration conditions and selectivity evaluation of modified silicas using a factorial design", Analytical Sciences, 15 (8), 761-766, (1999). [73895]
  8. Julio Cesar Bastos Fernandes, G. de Oliveira Neto e L.T. Kubota, "Potentiometric sensor for L-ascorbic acid based on copper (II) ions occluded in Ethylene-Vinyl-Acetate membrane", Electroanalysis, 11 (7), 475-480, (1999). [73897]
  9. He Xiwen, M. Tubino e A.V. Rossi, "Selective and sensitive spectrophotometric determination of total vanadium with hydrogen peroxide and 4-(2-Pyridylazo) Resorcinol", Analytica Chímica Acta, 389 (1-3), 275-280, (1999). [74185]
  10. I. Facchin, C. A. Mello, M.I.M.S. Bueno e R.J. Poppi, "Neural networks for simultaneous determination of sulfor and lead by X-Ray energy dispersive fluorescence", X-Ray Spectrometry, 28 , 173-177, (1999). [79603]
  11. G. M. F. Pinto e I.C.S.F. Jardim, "Determination of bentazon residues in water by high performance liquid chromatography Validation of the method", Journal of Chromatography A, 846 (1999), 369-374, (1999). [79667]
  12. L. F. C. Melo e I.C.S.F. Jardim, "Development of C-8 stationary phases immobilized by gamma radiation on zirconized silica for HPLC applications", Journal of Chromatography A, 845 (1999), 423-431, (1999). [79668]
  13. I.C.S.F. Jardim, K. E. Collins e T.A. Anazawa, "Radiation immobilization of poly(methyloctylsiloxane) on silica for use in HPLC: a uniform layer model", Journal of Chromatography A, 849 (1999), 299-307, (1999). [79684]
  14. J.A. Martins, M. M. Sena, R.J. Poppi e F.B.T. Pessine, "Fluorescence piroxican study in the presence of cyclodextrins by using the parafac method", Applied Spectroscopy, 53 , 510-522, (1999). [80221]
  15. C. R. Silva, J. de A. Simoni, C.H. Collins e P.L.O. Volpe, "Ascorbic acid as a standard for iodometric titrations. An analytical experiment for general chemistry", Journal of Chemical Education, 76 , 1421-1422, (1999). [80283]
  16. R. L. V. Ribeiro, C. B. Grespan, C.H. Collins, K. E. Collins e R. E. Bruns, "Optimization through factorial planning of the use of ethanol: water as a mobile phase for reversed phase HPLC", Journal of High Resolution Chromatograph, 22 (1), 52-54, (1999). [80287]
  17. S.S. Rosatto, L.T. Kubota e G. de Oliveira Neto, "Peroxidase phenol biosensor based on direct electron transfer blocking of peroxidases", Analytica Chímica Acta, s/i (65), 390, (1999). [80633]
  18. L. Rover Júnior, L.T. Kubota e G. de Oliveira Neto, "Electrochemical biosensors for salycilate and its derivatives determination in clínical and pharmaceutical samples", Electroanalysis, 11 (1999), 527-533, (1999). [80667]
  19. S.V. Guerra, L.T. Kubota, C.R. Xavier e S. Nakagaki, "Experimental optimization of selective hydrazine detection in FIA using a carbon paste electrode modified with copper porphyrin occluded into zeolite cavity", Analytical Sciences, 15 (1999), 1231-1234, (1999). [80668]
  20. J.R.D. Guimarães, A.H. Fostier, M.C. Forti, A.J. Melfi, I. Araujo, L.S. Costa e J.N. Mauro, "Mercury in human and environmental samples from two lakes in Amapá, Brazilian Amazon: Natural background and anthropogenic contamination", Ambio, 28 (4), 296-300, (1999). [82683]
  21. J.C. Fernandes, Graciliano de Oliveira Neto e L.T. Kubota, "Potentiometric biosensor for L-ascorbic acid based on ascorbate oxidase of natural source immobilized on ethylene-vinyl-acetate membrane", Analytica Chímica Acta, s/i (3), 389, (1999). [82882]
  22. L. Rover Júnior, Julio Cesar Bastos Fernandes, L.T. Kubota e G. Oliveira Neto, "Determination of acetylsalicylic acid by FIA potentiometric in drugs after on-line hydrolysis", Talanta, 50 (1999), 661, (1999). [82884]
  23. L.T. Kubota e L. Gorton, "Electrochemical study of flavins, phenazines, phenoxazines and phenothiazines immobilized on zirconium phosphate", Electroanalysis, 11 (1999), 719-728, (1999). [82886]
  24. C.J. Cuelbas, I. Messerschmidt, R.J. Poppi, J.C. de Andrade, C.A. Abreu e C.U. Davanzo, "Determination of organic matter in soils by FT-IR/diffuse reflectance and multivariate calibration", Journal of Chemometrics, 13 , 265-273, (1999). [84627]
  25. A.T. Lombardi e W. de F. Jardim, "Fluorescence spectroscopy of high performance liquid chromatography fractionated marine and terrestrial organic material", Water Research, 33 , 512-520, (1999). [84939]
  26. R.F.P. Nogueira, R.M. Alberici, M.A. Mendes, W. de F. Jardim e M.N. Eberlin, "Photocatalytic Degradation of Phenol and Trichloroethylene: On-Line and Real-Time Monitoring via Membrane Introduction Mass Spectrometry", Industrial and Engineering Chemistry, 38 , 1754-1758, (1999). [86832]
  27. C. Pasquini e M.C.H. Da Silva, "Determination of gaseous analytes in flow systems. A review", Journal of Brazilian Chemical Society, 10 (2), 85-91, (1999). [88003]
  28. C. A. Mello, R.J. Poppi, J.C. de Andrade e H. Cantarella, "Pruning neural network for architectute optimization applied to near infrared reflectance spectroscopy measurements. Determination of nitrogen content in wheat leaves", Analyst, 124 , 1669-1674, (1999). [88624]
  29. C.H. Collins e M.A. Morgano, "Quantitative determination of several simple perhalogenated compounds by high-performance liquid chromatography", Journal of Chromatography A, 846 , 395-399, (1999). [88653]
  30. R.B. Silva e C.H. Collins, "Chromatographic evaluation of radiation-immobilized poly(methyloctylsiloxane) on titanium-grafted silica", Journal of Chromatography A, 845 (1999), 417-422, (1999). [88935]
  31. M.C. Canela, R.M. Alberici, R.C.R. Sofia, M.N. Eberlin e W. de F. Jardim, "Destruction of Malodorous Compounds Using Heterogeneous Photocatalysis", Environmental Science and Technology, 33 (16), 2788-2792, (1999). [88969]
  32. M.C.H. Da Silva e C. Pasquini, "Bisegmented flow system for determination of low concentrations of gaseous constituents in gaseous samples", Analytica Chímica Acta, 393 (1-3), 121-129, (1999). [89588]
  33. R. S. Freire, J.J.R. Rohwedder e C. Pasquini, "Multi-electrode detection in voltammetry - Part 3. Effects of array configuration Hadamard multiplexed voltammetric technique", Analyst, 124 (11), 1657-1660, (1999). [93413]
  34. A.A. Rodella e N. Baccan, "Automatic spectrophotometric determination of copper in plant material, soil and fertilizer mixtures by a kinetic method", Communications in Soil Science and Plant Analysis, 30 (11&12, 1641-1648, (1999). [94139]
  35. M. Tubino e Shan-jun Liu, "Effects of ethanol solvent concentration of the sample and the carrier flow injection spectrophotometric analysis. III. In a confluence configuration", Journal of Flow Injection Analysis, 16 (2), 110-111, (1999). [94265]
  36. M. Tubino e Shan-jun Liu, "Effects of the ethanol concentrations of the sample and carrier on sample dispersion in flow injection analysis - II", Journal of Flow Injection Analysis, 16 (1), 55-67, (1999). [94274]
  37. M. Tubino e Shan-jun Liu, "Indirect determination of ethanol in drinks using a capacitance flow-through detector", Journal of Brazilian Chemical Society, 10 (2), 117-121, (1999). [94278]
  38. M.B. Adaime, M.J.T.F. dos Santos, I. Facchin, K. E. Collins e C.H. Collins, "Gamma radiation effects on polydimethylsilane stationary phases for use in packed-column gas chromatographic analyses", Journal of Brazilian Chemical Society, 10 (6), 512-518, (1999). [95082]
  39. C. Pasquini, "Why it is called Monosegmented Flow Analysis", Journal of Brazilian Chemical Society, 10 , 527-529, (1999). [95644]
  40. M.I.M.S. Bueno, I. Facchin, C. A. Mello e R.J. Poppi, "Simultaneous determination of lead and sulfur by energy dispersive X-ray spectrometry. Comparisson between artificial neural networks and other multivariate calibration methods", X-Ray Spectrometry, 28 (3), 173-177, Serie: 1999, (1999). [97919]
  41. W. de F. Jardim, "New challenges in environmental chemistry", Pure and Applied Chemistry, 70 , 2259-2262, (1999). [98039]
  42. R.F.P. Nogueira e W. de F. Jardim, "Solar photodegradation of water contaminants using potassium ferrioxalate", Journal of Advanced Oxidation Technologies - AOTs, 4 , 1-4, (1999). [99838]
  43. C.E.C. Magalhães, E.C. Lima, F.J. Krug e M.A.Z. Arruda, "Use of slurry-sampling technique for determination of aluminium in tea and coffee by electrothermal atomic absorption spectrometry", Mikrochímica Acta, 132 (1), 95-100, Serie: 1999, (1999). [99911]
  44. E.R. Pereira Filho e M.A.Z. Arruda, "Mechanised flow system for on-line microwave digestion of food samples with off-line catalytic spectrophotometric determination of cobalt at ng 1 (-1) levels", Analyst, 124 (12), 1873-1877, Serie: 1999, (1999). [99914]
  45. E.A.G. Zagatto, B.F. Reis, C.C. Oliveira, R.P. Santini e M.A.Z. Arruda, "Evolution of the commutation concept associated with the development of flow analysis", Analytica Chímica Acta, 400 , 249-256, (1999). [99917]
  46. I.M. Raimundo Jr. e R. Narayanaswamy, "Evaluation of nafion-crystal violet films for the construction of an optical relative humidity sensor", Analyst, 124 (11), 1623-1627, (1999). [99928]
  47. C.A. Perez, M. Radtke, H.J. Sanchez, H. Tolentino, R.T. Neuenshwander, W. Barg, M. Rubio, M.I.M.S. Bueno, I.M. Raimundo Jr. e J.J.R. Rohwedder, "Synchroton radiation X-ray fluorescence at the LNLS: beamline instrumentation and experiments", X-Ray Spectrometry, 28 (1999), 320-326, (1999). [100189]