All Stories

  1. Greener Route for Recovery of High-Purity Lanthanides from the Waste of Nickel Metal Hydride Battery Using a Hydrophobic Deep Eutectic Solvent

    Article • ACS Sustainable Chemistry & Engineering, April 2024, American Chemical Society (ACS)

    Dr Fábio R P Rocha

  2. Salt-assisted liquid-liquid extraction and on-column concentration for chromatographic determination of phenolic compounds in beer

    Article • Advances in Sample Preparation, February 2024, Elsevier

    Dr Fábio R P Rocha

  3. Exploiting chemometrics for screening analysis by near-infrared spectroscopy without the support of reference analytical methods: Application to bulk sweeteners

    Article • Microchemical Journal, July 2023, Elsevier

    Dr Fábio R P Rocha

  4. Exploiting microdistillation and smartphone-based digital-image colorimetry for determination of protein in foods

    Article • Microchemical Journal, May 2023, Elsevier

    Dr Fábio R P Rocha

  5. A novel approach for lactose determination in cow's milk exploiting smartphone-based digital-image photometry

    Article • Analytical Methods, January 2023, Royal Society of Chemistry

    Dr Fábio R P Rocha

  6. Evaluation of calibration approaches for quantitative analysis of sludge by laser induced breakdown spectrometry

    Article • Journal of Analytical Atomic Spectrometry, January 2023, Royal Society of Chemistry

    Dr Fábio R P Rocha

  7. Feasibility of laser-induced breakdown spectroscopy for determination of neodymium in magnet alloys

    Article • Journal of Analytical Atomic Spectrometry, January 2023, Royal Society of Chemistry

    Dr Fábio R P Rocha

  8. Multi-energy calibration for determining critical metals in nickel-metal hydride battery residues by microwave-induced plasma atomic emission spectrometry

    Article • Analytical Methods, January 2023, Royal Society of Chemistry

    Dr Fábio R P Rocha

  9. Sample preparation and spectrometric methods for elemental analysis of milk and dairy products – A review

    Article • Journal of Food Composition and Analysis, January 2023, Elsevier

    Dr Fábio R P Rocha

  10. Innovative prediction of milk microbiological quality from pH measurements by digital imaging photometry

    Article • Journal of Food Composition and Analysis, December 2022, Elsevier

    Dr Fábio R P Rocha

  11. The role of 5-hydroxymethylfurfural in food and recent advances in analytical methods

    Article • Food Chemistry, November 2022, Elsevier

    Dr Fábio R P Rocha

  12. Flow-based determination of lead exploiting in-syringe dispersive liquid-liquid micro-extraction in xylene and integrated spectrophotometric detection

    Article • Talanta, September 2022, Elsevier

    Dr Fábio R P Rocha

  13. Chemical Derivatization in Flow Analysis

    Article • Molecules, February 2022, MDPI AG

    Dr Fábio R P Rocha

  14. Single-phase determination of calcium and magnesium in biodiesel using smartphone-based digital images

    Article • Fuel, January 2022, Elsevier

    Dr Fábio R P Rocha

  15. Novel approach for screening milk based on fast and environmentally friendly determination of protein and fat

    Article • Journal of Food Composition and Analysis, December 2021, Elsevier

    Dr Fábio R P Rocha

  16. Large-scale flow analysis: From repetitive assays to expert analyzers

    Article • Talanta, October 2021, Elsevier

    Dr Fábio R P Rocha

  17. Smartphone-based digital images as a novel approach to determine formaldehyde as a milk adulterant

    Article • Food Control, July 2021, Elsevier

    Dr Fábio R P Rocha

  18. Spot test for determination of uric acid in saliva by smartphone-based digital images: A new proposal for detecting kidney dysfunctions

    Article • Microchemical Journal, March 2021, Elsevier

    Dr Fábio R P Rocha

  19. A novel approach to detect milk adulteration based on the determination of protein content by smartphone-based digital image colorimetry

    Article • Food Control, September 2020, Elsevier

    Dr Fábio R P Rocha

  20. Green volumetric procedure for determining biodiesel content in diesel blends or mixtures with vegetable oils exploiting solubility differences in an ethanol:water medium

    Article • Fuel, September 2020, Elsevier

    Dr Fábio R P Rocha

  21. Spot test for fast determination of hydrogen peroxide as a milk adulterant by smartphone-based digital image colorimetry

    Article • Microchemical Journal, September 2020, Elsevier

    Dr Fábio R P Rocha

  22. Two-dimensional separation by sequential injection chromatography

    Article • Journal of Chromatography A, August 2020, Elsevier

    Dr Fábio R P Rocha

  23. Flow-Batch Sample Preparation for Fractionation of the Stress Signaling Phytohormone Salicylic Acid in Fresh Leaves

    Article • Journal of Analytical Methods in Chemistry, July 2020, Hindawi Publishing Corporation

    Dr Fábio R P Rocha

  24. Solventless separation of underivatized biogenic amines by sequential injection chromatography

    Article • Microchemical Journal, July 2020, Elsevier

    Dr Fábio R P Rocha

  25. Flow Analysis: A Powerful Tool for Green Analytical Chemistry

    Article • May 2020, Royal Society of Chemistry

    Dr Fábio R P Rocha

  26. 19th Brazilian meeting on analytical chemistry

    Article • Microchemical Journal, March 2020, Elsevier

    Dr Fábio R P Rocha

  27. Multi-energy calibration to circumvent matrix effects in the determination of biodiesel quality parameters by UV–Vis spectrophotometry

    Article • Talanta, March 2020, Elsevier

    Dr Fábio R P Rocha

  28. Exploitation of a short monolithic column for in‐line separation and preconcentration: Environmental friendly determination of the emerging pollutant salicylic acid in natural waters

    Article • Journal of Separation Science, February 2020, Wiley

    Dr Fábio R P Rocha

  29. Systematic evaluation of sample preparation for fractionation of phytohormone salicylic acid in fresh leaves

    Article • Talanta, February 2020, Elsevier

    Dr Fábio R P Rocha

  30. A spot test for total esters determination in sugarcane spirits exploiting smartphone-based digital images

    Article • Analytical Methods, January 2020, Royal Society of Chemistry

    Dr Fábio R P Rocha

  31. Flow analysis during the 60 years of Talanta

    Article • Talanta, January 2020, Elsevier

    Dr Fábio R P Rocha

  32. Reply to the ‘Comment on “Slope ratio calibration for analysis of plant leaves by laser-induced breakdown spectroscopy”’ by Vincenzo Palleschi, JAAS 2020, 35, DOI: C9JA00381A

    Article • Journal of Analytical Atomic Spectrometry, January 2020, Royal Society of Chemistry

    Dr Fábio R P Rocha

  33. Spot test exploiting smartphone-based digital images for determination of biodiesel in diesel blends

    Article • Microchemical Journal, January 2020, Elsevier

    Dr Fábio R P Rocha

  34. The multiple facets of flow analysis. A tutorial

    Article • Analytica Chimica Acta, January 2020, Elsevier

    Dr Fábio R P Rocha

  35. Flow-based solid sample preparation: Advantages, limitations, and challenges

    Article • TrAC Trends in Analytical Chemistry, September 2019, Elsevier

    Dr Fábio R P Rocha

  36. A simple and low-cost approach for microdistillation: Application to methanol determination in biodiesel exploiting smartphone-based digital images

    Article • Talanta, July 2019, Elsevier

    Dr Fábio R P Rocha

  37. A greener, fast, and cost-effective smartphone-based digital image procedure for quantification of ethanol in distilled beverages

    Article • Microchemical Journal, June 2019, Elsevier

    Dr Fábio R P Rocha

  38. Monoliths: Synthetic routes, functionalization and innovative analytical applications

    Article • TrAC Trends in Analytical Chemistry, June 2019, Elsevier

    Dr Fábio R P Rocha

  39. A novel spot test based on digital images for determination of methanol in biodiesel

    Article • Talanta, April 2019, Elsevier

    Dr Fábio R P Rocha

  40. A new strategy for membraneless gas-liquid separation in flow analysis: Determination of dissolved inorganic carbon in natural waters

    Article • Microchemical Journal, March 2019, Elsevier

    Dr Fábio R P Rocha

  41. An overview of the Brazilian contributions to Green Analytical Chemistry

    Article • Anais da Academia Brasileira de Ciências, January 2019, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  42. Multi-energy calibration and sample fusion as alternatives for quantitative analysis of high silicon content samples by laser-induced breakdown spectrometry

    Article • Journal of Analytical Atomic Spectrometry, January 2019, Royal Society of Chemistry

    Dr Fábio R P Rocha

  43. Slope ratio calibration for analysis of plant leaves by laser-induced breakdown spectroscopy

    Article • Journal of Analytical Atomic Spectrometry, January 2019, Royal Society of Chemistry

    Dr Fábio R P Rocha

  44. A green and cost-effective procedure for determination of anionic surfactants in milk with liquid-liquid microextraction and smartphone-based photometric detection

    Article • Microchemical Journal, December 2018, Elsevier

    Dr Fábio R P Rocha

  45. Editorial

    Article • Microchemical Journal, July 2018, Elsevier

    Dr Fábio R P Rocha

  46. Fluidized particles in flow analysis: potentialities, limitations and applications

    Article • Talanta, July 2018, Elsevier

    Dr Fábio R P Rocha

  47. Metal and trace element assessments of bottom sediments from medium Tietê River basin, Sao Paulo State, Brazil: part II

    Article • Journal of Radioanalytical and Nuclear Chemistry, March 2018, Springer Science + Business Media

    Dr Fábio R P Rocha

  48. Spectrofluorimetric determination of bisphenol A in tap waters by exploiting liquid-liquid microextraction in a sequential injection system

    Article • Microchemical Journal, March 2018, Elsevier

    Dr Fábio R P Rocha

  49. Fast Spectrophotometric Determination of Iodine Value in Biodiesel and Vegetable Oils

    Article • Journal of the Brazilian Chemical Society, January 2018, Sociedade Brasileira de Quimica (SBQ)

    Dr Fábio R P Rocha

  50. Flow Analysis: Looking Back and Forward

    Article • Journal of the Brazilian Chemical Society, January 2018, Sociedade Brasileira de Quimica (SBQ)

    Dr Fábio R P Rocha

  51. Solid-phase extractions in flow analysis

    Article • Anais da Academia Brasileira de Ciências, January 2018, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  52. A flow-based procedure exploiting the lab-in-syringe approach for the determination of ester content in biodiesel and diesel/biodiesel blends

    Article • Talanta, November 2017, Elsevier

    Dr Fábio R P Rocha

  53. A spot test for iodine value determination in biodiesel based on digital images exploiting a smartphone

    Article • Microchemical Journal, July 2017, Elsevier

    Dr Fábio R P Rocha

  54. Recent advances on determination of milk adulterants

    Article • Food Chemistry, April 2017, Elsevier

    Dr Fábio R P Rocha

  55. Feasible photometric measurements in liquid–liquid extraction by exploiting smartphone-based digital images

    Article • Analytical Methods, January 2017, Royal Society of Chemistry

    Dr Fábio R P Rocha

  56. Flow-based food analysis: an overview of recent contributions

    Article • Analytical Methods, January 2017, Royal Society of Chemistry

    Dr Fábio R P Rocha

  57. Sinais de fundo em análise instrumental: uma discussão essencial em cursos de graduação

    Article • Química Nova, October 2016, Sociedade Brasileira de Quimica (SBQ)

    Dr Fábio R P Rocha

  58. On-line lab-in-syringe cloud point extraction for the spectrophotometric determination of antimony

    Article • Talanta, February 2016, Elsevier

    Dr Fábio R P Rocha

  59. Cloud point extraction in flow-based systems

    Article • Reviews in Analytical Chemistry, January 2016, De Gruyter

    Dr Fábio R P Rocha

  60. Tracer-monitored flow titrations

    Article • Analytica Chimica Acta, January 2016, Elsevier

    Dr Fábio R P Rocha

  61. Fast and environmentally friendly determination of salicylic acid in plant materials by sequential injection chromatography

    Article • Analytical Methods, January 2016, Royal Society of Chemistry

    Dr Fábio R P Rocha

  62. Liquid–liquid microextraction in sequential injection analysis for the direct spectrophotometric determination of acid number in biodiesel

    Article • Microchemical Journal, January 2016, Elsevier

    Dr Fábio R P Rocha

  63. A portable multi-syringe flow system for spectrofluorimetric determination of iodide in seawater

    Article • Talanta, November 2015, Elsevier

    Dr Fábio R P Rocha

  64. Exploitation of pulsed flows for on-line dispersive liquid–liquid microextraction: Spectrophotometric determination of formaldehyde in milk

    Article • Talanta, November 2015, Elsevier

    Dr Fábio R P Rocha

  65. The aquatic impact of ionic liquids on freshwater organisms

    Article • Chemosphere, November 2015, Elsevier

    Dr Fábio R P Rocha

  66. Applications of biosorbents in atomic spectrometry

    Article • Applied Spectroscopy Reviews, October 2015, Taylor & Francis

    Dr Fábio R P Rocha

  67. A critical review on photochemical conversions in flow analysis

    Article • Analytica Chimica Acta, October 2015, Elsevier

    Dr Fábio R P Rocha

  68. NAA and XRF technique bottom sediment assessment for major and trace elements: Tietê River, São Paulo State, Brazil

    Article • Journal of Radioanalytical and Nuclear Chemistry, June 2015, Springer Science + Business Media

    Dr Fábio R P Rocha

  69. A fast and environmental friendly analytical procedure for determination of melamine in milk exploiting fluorescence quenching

    Article • Food Chemistry, February 2015, Elsevier

    Dr Fábio R P Rocha

  70. On-line hyphenation of solid-phase extraction to chromatographic separation of sulfonamides with fused-core columns in sequential injection chromatography

    Article • Talanta, February 2015, Elsevier

    Dr Fábio R P Rocha

  71. An air carrier flow system for the spectrophotometric determination of water in biodiesel exploiting bleaching of the cobalt chloride complex

    Article • Talanta, January 2015, Elsevier

    Dr Fábio R P Rocha

  72. A novel strategy to determine As, Cr, Hg and V in drinking water by ICP-MS/MS

    Article • Analytical Methods, January 2015, Royal Society of Chemistry

    Dr Fábio R P Rocha

  73. On-column preconcentration in sequential injection chromatography: application to determination of parabens

    Article • Analytical Methods, January 2015, Royal Society of Chemistry

    Dr Fábio R P Rocha

  74. Greener procedures for biodiesel quality control

    Article • Analytical Methods, January 2015, Royal Society of Chemistry

    Dr Fábio R P Rocha

  75. A NEW DEVICE FOR FLOW-BASED LIQUID-LIQUID EXTRACTIONS

    Article • Química Nova, January 2015, GN1 Genesis Network

    Dr Fábio R P Rocha

  76. Expanding the separation capability of sequential injection chromatography: Determination of melamine in milk exploiting micellar medium and on-line sample preparation

    Article • Microchemical Journal, November 2014, Elsevier

    Dr Fábio R P Rocha

  77. Liquid–liquid microextraction in a multicommuted flow system for direct spectrophotometric determination of iodine value in biodiesel

    Article • Analytica Chimica Acta, June 2014, Elsevier

    Dr Fábio R P Rocha

  78. An improved approach for flow-based cloud point extraction

    Article • Analytica Chimica Acta, April 2014, Elsevier

    Dr Fábio R P Rocha

  79. Flow analysis in Brazil: contributions over the last four decades

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

    Dr Fábio R P Rocha

  80. A multi-pumping flow system for acute toxicity bioassay using the Vibrio fischeri bacteria

    Article • Analytical Methods, January 2014, Royal Society of Chemistry

    Dr Fábio R P Rocha

  81. Adsorption of 1-(2-Thiazolylazo)-2-Naphthol on Amberlite XAD-7 and Silica Gel: Isotherms and Kinetic Studies

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

    Dr Fábio R P Rocha

  82. A flow injection low-pressure chromatographic system exploiting fused-core columns

    Article • Analytical Methods, January 2014, Royal Society of Chemistry

    Dr Fábio R P Rocha

  83. A green flow-injection procedure for fluorimetric determination of bisphenol A in tap waters based on the inclusion complex with β-cyclodextrin

    Article • International Journal of Environmental & Analytical Chemistry, November 2013, Taylor & Francis

    Dr Fábio R P Rocha

  84. A multi-pumping flow system with on-line photochemical conversion and improved sensitivity for phosphorus fractionation in freshwaters

    Article • International Journal of Environmental & Analytical Chemistry, November 2013, Taylor & Francis

    Dr Fábio R P Rocha

  85. Contributions of Flow Analysis for Quality Control of Automotive Fuels: A Review

    Article • Analytical Letters, July 2013, Taylor & Francis

    Dr Fábio R P Rocha

  86. Photochemical micro-digestion in a multi-pumping flow system for phosphorus fractionation in cereals

    Article • Microchemical Journal, July 2013, Elsevier

    Dr Fábio R P Rocha

  87. Sixteenth Brazilian Meeting on Analytical Chemistry (Brazil, 2011)

    Article • Microchemical Journal, July 2013, Elsevier

    Dr Fábio R P Rocha, Professor Emanuel Carrilho, Ricardo Erthal Santelli

  88. An environmentally friendly flow-based procedure with photo-induced oxidation for the spectrophotometric determination of chloride in urine and waters

    Article • Microchemical Journal, May 2013, Elsevier

    Dr Fábio R P Rocha

  89. Greening sample preparation in inorganic analysis

    Article • TrAC Trends in Analytical Chemistry, April 2013, Elsevier

    Dr Fábio R P Rocha, Professor George L. Donati

  90. A simple and fast procedure for in situ determination of water in ethanol fuel

    Article • Journal of the Brazilian Chemical Society, March 2013, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  91. A Multi-pumping Flow System for Fast Spectrophotometric Determination of Simvastatin

    Article • Current Pharmaceutical Analysis, February 2013, Bentham Science Publishers

    Dr Fábio R P Rocha

  92. A multicommuted flow system with liquid–liquid microextraction for determination of anionic surfactants in freshwaters

    Article • Analytical Methods, January 2013, Royal Society of Chemistry

    Dr Fábio R P Rocha

  93. A Multi-pumping Flow System for Fast Spectrophotometric Determination of Simvastatin

    Article • Current Pharmaceutical Analysis, January 2013, Bentham Science Publishers

    Dr Fábio R P Rocha

  94. A multi-pumping flow-based procedure with improved sensitivity for the spectrophotometric determination of acid-dissociable cyanide in natural waters

    Article • Analytica Chimica Acta, January 2013, Elsevier

    Dr Fábio R P Rocha

  95. A single-phase spectrophotometric procedure for in situ analysis of free glycerol in biodiesel

    Article • Microchemical Journal, January 2013, Elsevier

    Dr Fábio R P Rocha

  96. A Simple and Fast Procedure forin situDetermination of Water in Ethanol Fuel

    Article • Journal of the Brazilian Chemical Society, January 2013, Sociedade Brasileira de Quimica (SBQ)

    Dr Fábio R P Rocha

  97. Green chemistry and the evolution of flow analysis. A review

    Article • Analytica Chimica Acta, February 2012, Elsevier

    Dr Fábio R P Rocha

  98. An environmentally friendly analytical procedure for nickel determination by atomic and molecular spectrometry after cloud point extraction in different samples

    Article • Analytical Methods, January 2012, Royal Society of Chemistry

    Dr Fábio R P Rocha, Professor Sidnei Goncalves Silva

  99. Green Analytical Chemistry Through Flow Analysis

    Article • July 2011, Royal Society of Chemistry

    Dr Fábio R P Rocha

  100. Immobilization of glucose oxidase enzyme (GOD) in large pore ordered mesoporous cage-like FDU-1 silica

    Article • Journal of Molecular Catalysis B Enzymatic, July 2011, Elsevier

    Dr Fábio R P Rocha

  101. Sequential spectrofluorimetric determination of free and total glycerol in biodiesel in a multicommuted flow system

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

    Dr Fábio R P Rocha, Professor Sidnei Goncalves Silva

  102. Exploiting Mn(III)/EDTA complex in a flow system with solenoid micro-pumps coupled to long pathlength spectrophotometry for fast manganese determination

    Article • Microchemical Journal, May 2011, Elsevier

    Dr Fábio R P Rocha, Professor Sidnei Goncalves Silva

  103. Liquid–liquid microextraction without phase separation in a multicommuted flow system for diltiazem determination in pharmaceuticals

    Article • Analytica Chimica Acta, May 2011, Elsevier

    Dr Fábio R P Rocha

  104. A multicommuted flow system for dissolution studies of Captopril in pharmaceutical preparations

    Article • Journal of the Brazilian Chemical Society, January 2011, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  105. Sistema de análises em fluxo polivalente para a determinação espectrofotométrica de fármacos

    Article • Química Nova, January 2011, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  106. Direct Solid-Phase Optical Measurements in Flow Systems: A Review

    Article • Analytical Letters, January 2011, Taylor & Francis

    Dr Fábio R P Rocha

  107. A flow injection procedure based on solenoid micro-pumps for spectrophotometric determination of free glycerol in biodiesel

    Article • Talanta, December 2010, Elsevier

    Professor Sidnei Goncalves Silva, Dr Fábio R P Rocha

  108. Versatile microanalytical system with porous polypropylene capillary membrane for calibration gas generation and trace gaseous pollutants sampling applied to the analysis of formaldehyde, formic acid, acetic acid and ammonia in outdoor air

    Article • Talanta, November 2010, Elsevier

    Dr Fábio R P Rocha

  109. An environmentally friendly flow system for high-sensitivity spectrophotometric determination of free chlorine in natural waters

    Article • Microchemical Journal, September 2010, Elsevier

    Dr Fábio R P Rocha

  110. A greener and highly sensitive flow-based procedure for carbaryl determination exploiting long pathlength spectrophotometry and photochemical waste degradation

    Article • Talanta, April 2010, Elsevier

    Dr Fábio R P Rocha

  111. A flow-based procedure with solenoid micro-pumps for the spectrophotometric determination of uric acid in urine

    Article • Microchemical Journal, January 2010, Elsevier

    Dr Fábio R P Rocha

  112. A green analytical procedure for determination of copper and iron in plant materials after cloud point extraction

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

    Dr Fábio R P Rocha, Professor Sidnei Goncalves Silva

  113. Construção de espectrômetro de emissão atômica com atomização eletrotérmica em filamento de tungstênio (WCAES)

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

    Dr Fábio R P Rocha

  114. A multicommuted flow procedure for the determination of total and free cholesterol in eggs and human blood serum by chemiluminescence

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

    Dr Fábio R P Rocha

  115. Cloud point extraction and concentration of carbaryl from natural waters

    Article • International Journal of Environmental & Analytical Chemistry, November 2009, Taylor & Francis

    Dr Fábio R P Rocha

  116. Green Strategies in Trace Analysis: A Glimpse of Simple Alternatives for Sample Pretreatment and Analyte Determination

    Article • Spectroscopy Letters, November 2009, Taylor & Francis

    Dr Fábio R P Rocha

  117. Peat as a natural solid-phase for copper preconcentration and determination in a multicommuted flow system coupled to flame atomic absorption spectrometry

    Article • Analytica Chimica Acta, March 2009, Elsevier

    Dr Fábio R P Rocha

  118. Cloud point extraction to avoid interferences by structured background on nickel determination in plant materials by FAAS

    Article • Analytical Methods, January 2009, Royal Society of Chemistry

    Dr Fábio R P Rocha, Professor Sidnei Goncalves Silva

  119. Flow-injection iodimetric determination of captopril in pharmaceutical preparations

    Article • Journal of the Brazilian Chemical Society, January 2009, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  120. Analytical chemistry in Brazil: healthy and growing

    Article • Journal of the Brazilian Chemical Society, January 2009, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  121. A critical evaluation of a long pathlength cell for flow-based spectrophotometric measurements

    Article • Microchemical Journal, October 2008, Elsevier

    Dr Fábio R P Rocha

  122. A critical evaluation of a flow‐cell based on a liquid core waveguide for chemiluminescence measurements

    Article • Luminescence, September 2008, Wiley

    Dr Fábio R P Rocha

  123. A Flow-Based Analytical Procedure for Salbutamol Determination Exploiting Chemiluminescence in a Liquid-Core Waveguide

    Article • Analytical Letters, July 2008, Taylor & Francis

    Dr Fábio R P Rocha

  124. A multicommuted flow system with solenoid micro-pumps for paraquat determination in natural waters

    Article • Talanta, June 2008, Elsevier

    Dr Fábio R P Rocha

  125. A green flow-based procedure for fluorimetric determination of acid-dissociable cyanide in natural waters exploiting multicommutation

    Article • Analytical and Bioanalytical Chemistry, June 2008, Springer Science + Business Media

    Dr Fábio R P Rocha

  126. An improved procedure for flow-based turbidimetric sulphate determination based on a liquid core waveguide and pulsed flows

    Article • Analytica Chimica Acta, May 2008, Elsevier

    Dr Fábio R P Rocha

  127. A multicommuted flow-system for spectrophotometric determination of tannin exploiting the Cu(I)/BCA complex formation

    Article • Microchemical Journal, February 2008, Elsevier

    Dr Fábio R P Rocha, Dr Horacio Dorigan Moya

  128. Construção de uma cela de fluxo de longo caminho óptico para medidas espectrofotométricas

    Article • Química Nova, January 2008, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  129. An improved flow-based procedure for microdetermination of total tannins in beverages with minimized reagent consumption

    Article • Microchimica Acta, November 2007, Springer Science + Business Media

    Dr Fábio R P Rocha

  130. A Multicommuted Flow‐based System for Hydrogen Peroxide Determination by Chemiluminescence Detection Using a Photodiode

    Article • Analytical Letters, November 2007, Taylor & Francis

    Dr Fábio R P Rocha

  131. Development and critical comparison of greener flow procedures for nitrite determination in natural waters

    Article • Microchemical Journal, April 2007, Elsevier

    Dr Fábio R P Rocha

  132. A green analytical procedure for sensitive and selective determination of iron in water samples by flow-injection solid-phase spectrophotometry

    Article • Talanta, March 2007, Elsevier

    Dr Fábio R P Rocha

  133. A Multi‐purpose Flow System Based on Multi‐commutation

    Article • Spectroscopy Letters, December 2006, Taylor & Francis

    Dr Fábio R P Rocha

  134. Integração de técnicas analíticas e proposta de experimentos para cursos de graduação em análise instrumental: uso de espectrômetro de absorção atômica para medidas de absorção molecular

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

    Dr Fábio R P Rocha

  135. An improved procedure for phosphorous fractionation in plant materials exploiting sample preparation and monosegmented flow analysis

    Article • Microchemical Journal, April 2006, Elsevier

    Dr Fábio R P Rocha

  136. Evaluation of a Multicommuted Flow System for Photometric Environmental Measurements

    Article • Journal of Automated Methods and Management in Chemistry, January 2006, Hindawi Publishing Corporation

    Dr Fábio R P Rocha

  137. A portable and low cost equipment for flow injection chemiluminescence measurements

    Article • Talanta, October 2005, Elsevier

    Dr Fábio R P Rocha

  138. A clean method for flow injection spectrophotometric determination of cyclamate in table sweeteners

    Article • Analytica Chimica Acta, August 2005, Elsevier

    Dr Fábio R P Rocha

  139. A green analytical procedure for flow-injection determination of nitrate in natural waters

    Article • Talanta, January 2005, Elsevier

    Dr Fábio R P Rocha

  140. Estratégias para aumento de sensibilidade em espectrofotometria UV-VIS

    Article • Química Nova, October 2004, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  141. Multímetro interfaceado de baixo custo para aquisição de dados

    Article • Química Nova, April 2004, FapUNIFESP (SciELO)

    Dr Eduardo Mathias Richter, Dr Fábio R P Rocha, Mr Eduardo Mathias Richter

  142. Um experimento de análise em fluxo envolvendo reações enzimáticas e quimiluminescência

    Article • Química Nova, April 2004, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  143. An improved flow system for phenols determination exploiting multicommutation and long pathlength spectrophotometry

    Article • Talanta, February 2004, Elsevier

    Dr Fábio R P Rocha

  144. Simultaneous in-line concentration for spectrophotometric determination of cations and anions

    Article • Journal of the Brazilian Chemical Society, February 2004, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  145. A multicommuted flow system for sequential spectrophotometric determination of hydrosoluble vitamins in pharmaceutical preparations

    Article • Talanta, January 2003, Elsevier

    Dr Fábio R P Rocha

  146. Desenvolvimento de um dispositivo de baixo custo para medidas por quimiluminescência

    Article • Química Nova, December 2002, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  147. Multicommutation in flow analysis: concepts, applications and trends

    Article • Analytica Chimica Acta, September 2002, Elsevier

    Dr Fábio R P Rocha

  148. A Flow System for Spectrophotometric Multidetermination in Water Exploiting Reagent Injection

    Article • Journal of the Brazilian Chemical Society, September 2002, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  149. Flow system with in-line separation/preconcentration coupled to graphite furnace atomic absorption spectrometry with W–Rh permanent modifier for copper determination in seawater

    Article • Analytica Chimica Acta, July 2002, Elsevier

    Dr Fábio R P Rocha

  150. Química analítica brasileira durante os 25 anos da SBQ: contexto atual e senso comum

    Article • Química Nova, May 2002, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  151. A multicommutation-based flow system for multi-element analysis in pharmaceutical preparations

    Article • Talanta, October 2001, Elsevier

    Dr Fábio R P Rocha

  152. An improved flow system for spectrophotometric determination of anions exploiting multicommutation and multidetection

    Article • Analytica Chimica Acta, July 2001, Elsevier

    Dr Fábio R P Rocha

  153. Flow-injection spectrophotometric multidetermination of metallic ions with a single reagent exploiting multicommutation and multidetection

    Article • Fresenius Journal of Analytical Chemistry, May 2001, Springer Science + Business Media

    Dr Fábio R P Rocha

  154. Flow analysis strategies to greener analytical chemistry. An overview

    Article • Green Chemistry, January 2001, Royal Society of Chemistry

    Dr Fábio R P Rocha

  155. Detecting and circumventing sources of inaccuracy in flow analysis

    Article • Pure and Applied Chemistry, January 2001, De Gruyter

    Dr Fábio R P Rocha

  156. Nickel and zinc determination by flow-injection solid-phase spectrophotometry exploiting different sorption rates

    Article • Talanta, April 2000, Elsevier

    Dr Fábio R P Rocha

  157. Influence of Na, K, Ca and Mg on lead atomization by tungsten coil atomic absorption spectrometry

    Article • Journal of the Brazilian Chemical Society, April 2000, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  158. A flow system exploiting multicommutation for speciation of inorganic nitrogen in waters

    Article • Analytica Chimica Acta, March 2000, Elsevier

    Dr Fábio R P Rocha

  159. Experimentos didáticos utilizando sistema de análise por injeção em fluxo

    Article • Química Nova, February 2000, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  160. A Low-Cost Device for Automatic Photometric Titrations

    Article • Journal of Chemical Education, February 2000, American Chemical Society (ACS)

    Dr Fábio R P Rocha

  161. Construção de uma cela de fluxo para medidas por espectrofotometria em fase sólida

    Article • Química Nova, February 2000, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  162. Flow Injection Analysis in the Undergraduate Laboratory

    Article • The Chemical Educator, October 1999, Springer Science + Business Media

    Dr Fábio R P Rocha

  163. Monosegmented flow system exploiting multicommutation applied to spectrophotometric determination of manganese in soybean digests

    Article • Analytica Chimica Acta, April 1999, Elsevier

    Dr Fábio R P Rocha

  164. Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations

    Article • Analytica Chimica Acta, March 1999, Elsevier

    Dr Fábio R P Rocha

  165. Automatic multicommutation flow system for wide range spectrophotometric calcium determination

    Article • Analytica Chimica Acta, June 1998, Elsevier

    Dr Fábio R P Rocha

  166. Flow injection spectrophotometric determination of nitrate in electrolyte of lead-acid batteries

    Article • Talanta, December 1997, Elsevier

    Dr Fábio R P Rocha

  167. Ionic Strength Effect on the Rate of Reduction of Hexacyanoferrate(III) by Ascorbic Acid: A Flow Injection Kinetic Experiment

    Article • Journal of Chemical Education, May 1997, American Chemical Society (ACS)

    Dr Fábio R P Rocha

  168. Overcoming the schlieren effect in flow injection spectrophotometry by introduction of large sample volumes: determination of chloride in the electrolyte of lead-acid batteries

    Article • Journal of the Brazilian Chemical Society, January 1997, FapUNIFESP (SciELO)

    Dr Fábio R P Rocha

  169. Effects of Solution Physical Properties on Copper and Chromium Signals in Flame Atomic Absorption Spectrometry

    Article • Journal of Chemical Education, October 1996, American Chemical Society (ACS)

    Dr Fábio R P Rocha