All Stories

  1. Characterization and screening of tight binding inhibitors of xanthine oxidase: an on-flow assay

    Article • RSC Advances, January 2015, Royal Society of Chemistry

    Professor Quezia B Cass

  2. Enantioseparation of chiral pharmaceuticals in biomedical and environmental analyses by liquid chromatography: An overview

    Article • Journal of Chromatography B, October 2014, Elsevier

    Professor Quezia B Cass

  3. High resolution magic angle spinning NMR as a tool for unveiling the molecular enantiorecognition of omeprazole by amylose-based chiral phase

    Article • The Analyst, January 2014, Royal Society of Chemistry

    Professor Quezia B Cass

  4. New trends in LC protein ligand screening

    Article • Journal of Pharmaceutical and Biomedical Analysis, January 2014, Elsevier

    Professor Quezia B Cass

  5. Microwave-Assisted Synthesis of N -Heterocycles and Their Evaluation Using an Acetylcholinesterase Immobilized Capillary Reactor

    Article • Journal of the Brazilian Chemical Society, January 2014, GN1 Genesis Network

    Professor Quezia B Cass

  6. High Throughput Enzymatic Enantiomeric Excess: Quick- ee

    Article • Journal of the Brazilian Chemical Society, January 2014, GN1 Genesis Network

    Professor Quezia B Cass

  7. Silica-Supported Prolyl Pseudo-Peptide Organocatalysts: Application in the Direct Asymmetric Michael Addition

    Article • December 2013, Editora Edgard Blucher, Ltda.

    Professor Quezia B Cass

  8. Characterization of four Phyllanthus species using liquid chromatography coupled to tandem mass spectrometry

    Article • Journal of Chromatography A, May 2013, Elsevier

    Professor Quezia B Cass

  9. Immobilized purine nucleoside phosphorylase from Schistosoma mansoni for specific inhibition studies

    Article • Analytical and Bioanalytical Chemistry, March 2013, Springer Science + Business Media

    Professor Quezia B Cass

  10. Preface

    Article • Journal of Pharmaceutical and Biomedical Analysis, January 2013, Elsevier

    Professor Quezia B Cass

  11. New Trends in Sample Preparation in Brazil: an Overview of Bioanalytical Applications by Liquid Chromatography

    Article • Journal of the Brazilian Chemical Society, January 2013, GN1 Genesis Network

    Professor Quezia B Cass

  12. Albendazole sulfoxide enantiomers: Preparative chiral separation and absolute stereochemistry

    Article • Journal of Chromatography A, March 2012, Elsevier

    Professor Quezia B Cass

  13. Enantioselective disposition of omeprazole, pantoprazole, and lansoprazole in a same Brazilian subjects group

    Article • Chirality, February 2012, Wiley

    Professor Quezia B Cass

  14. Immobilization of pectinase from Leucoagaricus gongylophorus on magnetic particles

    Article • The Analyst, January 2012, Royal Society of Chemistry

    Professor Quezia B Cass

  15. A quantitative validated method using liquid chromatography and chemometric analysis for evaluation of raw material oF Maytenus ilicifolia (Schrad.) Planch., Celastraceae

    Article • Química Nova, January 2012, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  16. Direct injection of native aqueous matrices by achiral–chiral chromatography ion trap mass spectrometry for simultaneous quantification of pantoprazole and lansoprazole enantiomers fractions

    Article • Journal of Chromatography A, May 2011, Elsevier

    Professor Quezia B Cass

  17. Chromatographic profiles of Phyllanthus aqueous extracts samples: a proposition of classification using chemometric models

    Article • Analytical and Bioanalytical Chemistry, February 2011, Springer Science + Business Media

    Professor Quezia B Cass

  18. Detector evaporativo com espalhamento de luz: princípios de operação e aplicações em cromatografia líquida de alta eficiência

    Article • Scientia Chromatographica, January 2011, Editora Cubo Multimidia

    Professor Quezia B Cass

  19. ESTUDO MORFO-ANATÔMICO DE AMOSTRAS COMERCIAIS DE CATUABA

    Article • Publicatio UEPG Ciencias Biologicas e da Saude, November 2010, Universidade Estadual de Ponta Grossa (UEPG)

    Professor Quezia B Cass

  20. Spatiotemporal distribution of pharmaceuticals in the Douro River estuary (Portugal)

    Article • The Science of The Total Environment, October 2010, Elsevier

    Professor Quezia B Cass, Maria Elizabeth Tiritan

  21. Absolute configuration reassignment of two chromanes from Peperomia obtusifolia (Piperaceae) using VCD and DFT calculations

    Article • Tetrahedron Asymmetry, October 2010, Elsevier

    Professor Quezia B Cass

  22. A column-switching method for quantification of the enantiomers of omeprazole in native matrices of waste and estuarine water samples

    Article • Talanta, June 2010, Elsevier

    Professor Quezia B Cass

  23. Differentiation of Lippia gracilis Schauer Genotypes by LC Fingerprint and Chemometrics Analyses

    Article • Chromatographia, June 2010, Springer Science + Business Media

    Professor Quezia B Cass

  24. ChemInform Abstract: Selective and Mild Oxidation of Sulfides to Sulfoxides by Oxodiperoxo Molybdenum Complexes Adsorbed onto Silica Gel.

    Article • ChemInform, May 2010, Wiley

    Professor Quezia B Cass

  25. Enantiomeric Resolution of a Chiral Sulfoxide Series by LC on Synthetic Polymeric Columns with Multimodal Elution

    Article • Chromatographia, January 2010, Springer Science + Business Media

    Professor Quezia B Cass

  26. A novel multicommutation stopped-flow system for the simultaneous determination of sulfamethoxazole and trimethoprim by differential pulse voltammetry on a boron-doped diamond electrode

    Article • Analytical Methods, January 2010, Royal Society of Chemistry

    Professor Quezia B Cass

  27. Fases estacionárias quirais para cromatografia líquida de alta eficiência

    Article • Química Nova, January 2010, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  28. Two-dimensional chromatography method applied to the enantiomeric determination of lansoprazole in human plasma by direct sample injection

    Article • Chirality, January 2010, Wiley

    Professor Quezia B Cass

  29. Uso de CLAE no controle de qualidade em produtos comerciais de Nim: reprodutibilidade da ação inseticida

    Article • Química Nova, January 2010, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  30. Structural insights into the molecular basis responsible for the effects of immobilization on the kinetic parameters of glyceraldehyde-3-phosphate dehydrogenase from Trypanosoma cruzi and human

    Article • Journal of the Brazilian Chemical Society, January 2010, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  31. A multidimensional high performance liquid chromatography method coupled with amperometric detection using a boron-doped diamond electrode for the simultaneous determination of sulfamethoxazole and trimethoprim in bovine milk

    Article • Analytica Chimica Acta, November 2009, Elsevier

    Professor Quezia B Cass

  32. Pharmaceutical trace analysis in aqueous environmental matrices by liquid chromatography–ion trap tandem mass spectrometry

    Article • Journal of Chromatography A, October 2009, Elsevier

    Professor Quezia B Cass, Maria Elizabeth Tiritan

  33. Simultaneous Differential Pulse Voltammetric Determination of Sulfamethoxazole and Trimethoprim on a Boron-Doped Diamond Electrode

    Article • Electroanalysis, July 2009, Wiley

    Professor Quezia B Cass

  34. Imobilização de enzimas em suportes cromatográficos: uma ferramenta na busca por substâncias bioativas

    Article • Química Nova, January 2009, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  35. Validação em métodos cromatográficos para análises de pequenas moléculas em matrizes biológicas

    Article • Química Nova, January 2009, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  36. Determination of albendazole metabolites by direct injection of bovine plasma and multidimensional achiral–chiral high performance liquid chromatography

    Article • Talanta, June 2008, Elsevier

    Professor Quezia B Cass

  37. Classification of commercial Catuaba samples by NMR, HPLC and chemometrics

    Article • Phytochemical Analysis, January 2008, Wiley

    Professor Quezia B Cass

  38. Stereoselective Addition of Chiral Oxazoline Cyanocuprates to Conjugated Nitroalkenes

    Article • Letters in Organic Chemistry, April 2007, Bentham Science Publishers

    Professor Quezia B Cass

  39. Residual monomer of reline acrylic resins

    Article • Dental Materials, March 2007, Elsevier

    Professor Quezia B Cass

  40. Quantification of cephalexin as residue levels in bovine milk by high-performance liquid chromatography with on-line sample cleanup

    Article • Talanta, February 2007, Elsevier

    Professor Quezia B Cass

  41. Development of a HPLC method to follow the degradation of phenol by electrochemical or photoelectrochemical treatment

    Article • Journal of the Brazilian Chemical Society, April 2006, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  42. Desenvolvimento de colunas cromatográficas de meios de acesso restrito proteína-imobilizada e suas avaliações para análise de fármacos com injeção direta de plasma humano

    Article • Química Nova, February 2006, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  43. Evaluation of Liquid Chromatographic Behavior of Cephalosporin Antibiotics Using Restricted Access Medium Columns for On-line Sample Cleanup of Bovine Milk

    Article • Journal of Agricultural and Food Chemistry, February 2006, American Chemical Society (ACS)

    Professor Quezia B Cass

  44. Identification of chiral selectors for improved enantioseparation based on molecular interaction fields

    Article • Analytica Chimica Acta, July 2005, Elsevier

    Professor Quezia B Cass

  45. Determination of Gossypol Enantiomer Ratio in Cotton Plants by Chiral Higher-Performance Liquid Chromatography

    Article • Journal of Agricultural and Food Chemistry, September 2004, American Chemical Society (ACS)

    Professor Quezia B Cass

  46. Enzymatic Resolution of 5-Phenylselanyltetrahydro-2-furanone. Enantioselective Preparation of (R)- and (S)-γ-Valerolactone.

    Article • ChemInform, August 2004, Wiley

    Professor Quezia B Cass

  47. Effects on Enantioselectivity by the Use of Polysaccharide‐Based Columns by Multimodal Elution

    Article • Journal of Liquid Chromatography &amp Related Technologies, August 2003, Taylor & Francis

    Professor Quezia B Cass

  48. Determination of the absolute configuration and solution conformation of gossypol by vibrational circular dichroism

    Article • Chirality, January 2003, Wiley

    Professor Quezia B Cass

  49. The use of the generator coordinate method for designing basis set. Application to oxo-diperoxo molybdenum complexes

    Article • Journal of Molecular Structure THEOCHEM, August 2002, Elsevier

    Professor Quezia B Cass

  50. SEPARATION OF MULTI-MILLIGRAM QUANTITIES OF GOSSYPOL ENANTIOMERS ON POLYSACCHARIDE-BASED STATIONARY PHASES

    Article • Journal of Liquid Chromatography &amp Related Technologies, April 2002, Taylor & Francis

    Professor Quezia B Cass

  51. Determination of the plasma levels of metyrapone and its enantiomeric metyrapol metabolites by direct plasma injection and multidimensional achiral-chiral chromatography

    Article • Chirality, January 2002, Wiley

    Professor Quezia B Cass

  52. Selective and mild oxidation of sulfides to sulfoxides by oxodiperoxo molybdenum complexes adsorbed onto silica gel

    Article • Tetrahedron, November 2001, Elsevier

    Professor Quezia B Cass

  53. Molecular Structure of the Molybdenum Oxo-Diperoxo Compound MoO(O 2 ) 2 (OPy)(H 2 O):  A Computational and X-ray Study

    Article • Inorganic Chemistry, November 2001, American Chemical Society (ACS)

    Professor Quezia B Cass

  54. An enantioselective assay for (±)-modafinil

    Article • Journal of Pharmaceutical and Biomedical Analysis, August 2001, Elsevier

    Professor Quezia B Cass

  55. Separation and NMR studies on lignans of Raulinoa echinata

    Article • Phytochemical Analysis, January 2001, Wiley

    Professor Quezia B Cass

  56. SYNTHESIS OF THE FOUR POSSIBLE STEREOISOMERS OFN-2′-METHYLBUTYL-2-METHYLBUTYLAMIDE, THE SEX PHEROMONE OF THE LONGHORN BEETLEMIGDOLUS FRYANUSWESTWOOD

    Article • Synthetic Communications, January 2001, Taylor & Francis

    Professor Quezia B Cass

  57. A QSERR study on enantioselective separation of enantiomeric sulphoxides

    Article • Analytica Chimica Acta, August 2000, Elsevier

    Professor Quezia B Cass, Maria Elizabeth Tiritan

  58. THE USE OF A POLYSACCHARIDE-BASED COLUMN ON MULTIMODAL ELUTION

    Article • Journal of Liquid Chromatography &amp Related Technologies, April 2000, Taylor & Francis

    Professor Quezia B Cass

  59. DEVELOPMENT OF HPLC METHOD FOR THE ANALYSIS OF CHLOROPHENOLS IN SAMPLES FROM ANAEROBIC REACTORS FOR WASTEWATER TREATMENT

    Article • Journal of Liquid Chromatography &amp Related Technologies, April 2000, Taylor & Francis

    Professor Quezia B Cass

  60. First direct resolution of gossypol enantiomers on a chiral high-performance liquid chromatography phase

    Article • Chirality, January 1999, Wiley

    Professor Quezia B Cass

  61. First direct resolution of gossypol enantiomers on a chiral high‐performance liquid chromatography phase

    Article • Chirality, January 1999, Wiley

    Professor Quezia B Cass

  62. ENANTIOSEPARATION ON AMYLOSE TRIS(3,5-DIMETHOXYPHENYL CARBAMATE): APPLICATION TO COMMERCIAL PHARMACEUTICAL CHIRAL DRUGS

    Article • Journal of Liquid Chromatography &amp Related Technologies, January 1999, Taylor & Francis

    Professor Quezia B Cass

  63. ON THE PARTITIONING OF SOME NEWLY SYNTHESIZED MESOIONIC 1,3,4-THIADIAZOLIUM-2-AMINIDE AND PRECURSORS EVALUATED BY RP-HPLC

    Article • Journal of Liquid Chromatography &amp Related Technologies, January 1999, Taylor & Francis

    Professor Quezia B Cass

  64. DETERMINATION OF PARTITION COEFFICIENTS FOR SEVERAL PROPRANOLOL ANALOGUES BY REVERSED PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

    Article • Journal of Liquid Chromatography &amp Related Technologies, January 1999, Taylor & Francis

    Professor Quezia B Cass

  65. Meliacin butenolides from Trichilia estipulata

    Article • Phytochemistry, December 1998, Elsevier

    Professor Quezia B Cass

  66. Preparative enantioseparation on polysaccharide phase using microporous silica as a support

    Article • Chirality, January 1998, Wiley

    Professor Quezia B Cass

  67. Preparative enantioseparation on polysaccharide phase using microporous silica as a support

    Article • Chirality, January 1998, Wiley

    Professor Quezia B Cass

  68. Discriminação quiral por CLAE em carbamatos de polissacarídeos: desenvolvimento, aplicações e perspectivas

    Article • Química Nova, February 1997, FapUNIFESP (SciELO)

    Professor Quezia B Cass

  69. Enantiomeric resolution by HPLC of axial chiral amides using amylose tris[(S)-1-phenylethylcarbamate]

    Article • Chirality, January 1997, Wiley

    Professor Quezia B Cass

  70. Enantiomeric resolution by HPLC of axial chiral amides using amylose tris[(S)‐1‐phenylethylcarbamate]

    Article • Chirality, January 1997, Wiley

    Professor Quezia B Cass

  71. Enantiomeric resolution of chiral sulfoxides on polysaccharide phases by HPLC

    Article • Chirality, January 1996, Wiley

    Professor Quezia B Cass, Maria Elizabeth Tiritan

  72. Chiral discrimination by HPLC on aryl carbamate derivatives of chitin coated onto microporous aminopropyl silica

    Article • Chirality, January 1996, Wiley

    Professor Quezia B Cass

  73. Lignans from Ochroma lagopus Swartz

    Article • Tetrahedron, November 1995, Elsevier

    Professor Quezia B Cass

  74. HPLC with carbohydrate carbamate chiral phases: Influence of chiral phase structure on enantioselectivity

    Article • Chirality, January 1994, Wiley

    Professor Quezia B Cass

  75. On the preparation and rearrangement of some vinylic sulphoxides

    Article • Journal of the Chemical Society Perkin Transactions 1, January 1991, Royal Society of Chemistry

    Professor Quezia B Cass

  76. Gossypol enantiomer ratios in cotton seeds

    Article • Phytochemistry, January 1991, Elsevier

    Professor Quezia B Cass, Maria Elizabeth Tiritan

  77. Structural Investigations of Gossypol Schiff's Bases

    Article • Journal of the Brazilian Chemical Society, January 1990, GN1 Genesis Network

    Professor Quezia B Cass

  78. A Simple and Efficient Synthesis of Thymoquinone and Methyl P-Benzoquinone

    Article • Synthetic Communications, September 1985, Taylor & Francis

    Professor Quezia B Cass

  79. Preparation and rearrangement of some conjugated phenylsulphinylacetate derivatives

    Article • Journal of the Chemical Society Chemical Communications, January 1981, Royal Society of Chemistry

    Professor Quezia B Cass