All Stories

  1. Tea authentication and determination of chemical constituents using digital image-based fingerprint signatures and chemometrics

    Article • Food Chemistry, September 2023, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  2. Classification of instant coffees based on caffeine content and roasting degree using NIR spectrometry and multivariate analysis

    Article • Microchemical Journal, July 2023, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  3. Determination of Coumarin in Mikania glomerata Infusions by Square-Wave Voltammetry Using a Boron-Doped Diamond Electrode

    Article • Journal of the Brazilian Chemical Society, January 2023, Sociedade Brasileira de Quimica (SBQ)

    Dr Paulo Henrique Gonçalves Dias Diniz

  4. Pesticide Determination in Fresh Coconut Water (Cocos nucifera Linn.) by GC-MS Using Microwave-Assisted Liquid-Liquid Extraction

    Article • Journal of the Brazilian Chemical Society, January 2023, Sociedade Brasileira de Quimica (SBQ)

    Dr Paulo Henrique Gonçalves Dias Diniz

  5. An eco-friendly analytical methodology based on digital images for quality control of commercial Mikania glomerata syrups

    Article • Microchemical Journal, July 2022, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  6. A video processing and machine vision-based automatic analyzer to determine sequentially total suspended and settleable solids in wastewater

    Article • Analytica Chimica Acta, May 2022, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  7. Spatiotemporal evaluation of organochlorine pesticide residues in bottom sediments of the Rio de Ondas hydrographic basin, western Bahia, Brazil

    Article • Environmental Science and Pollution Research, March 2022, Springer Science + Business Media

    Dr Paulo Henrique Gonçalves Dias Diniz

  8. Variable selection in the chemometric treatment of food data: A tutorial review

    Article • Food Chemistry, February 2022, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  9. Feasibility study on quantification and authentication of the cassava starch content in wheat flour for bread-making using NIR spectroscopy and digital images

    Article • Food Chemistry, January 2022, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  10. Honey authentication in terms of its adulteration with sugar syrups using UV–Vis spectroscopy and one-class classifiers

    Article • Food Chemistry, December 2021, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  11. Non-destructive authentication of Gourmet ground roasted coffees using NIR spectroscopy and digital images

    Article • Food Chemistry, December 2021, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  12. Scores selection via Fisher’s discriminant power in PCA-LDA to improve the classification of food data

    Article • Food Chemistry, November 2021, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  13. Distribution of organochlorine, organophosphates, carbamate, thiocarbamate, pyrethroids, and strobilurins in surface sediments of the Rio de Ondas watershed by GC-MS

    Article • Journal of Environmental Science and Health Part B, April 2021, Taylor & Francis

    Dr Paulo Henrique Gonçalves Dias Diniz

  14. A new highly selective colorimetric Schiff base chemosensor for determining the copper content in artisanal cachaças

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, December 2020, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  15. Qualitative and quantitative analysis based on digital images to determine the adulteration of ketchup samples with Sudan I dye

    Article • Food Chemistry, October 2020, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  16. Ant colony optimization for variable selection in discriminant linear analysis

    Article • Journal of Chemometrics, August 2020, Wiley

    Dr Paulo Henrique Gonçalves Dias Diniz

  17. Simultaneous determination of goat milk adulteration with cow milk and their fat and protein contents using NIR spectroscopy and PLS algorithms

    Article • LWT, June 2020, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  18. Digital image-based tracing of geographic origin, winemaker, and grape type for red wine authentication

    Article • Food Chemistry, May 2020, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  19. Chemometrics‐assisted color histogram‐based analytical systems

    Article • Journal of Chemometrics, April 2020, Wiley

    Dr Paulo Henrique Gonçalves Dias Diniz

  20. Quantification and identification of adulteration in the fat content of chicken hamburgers using digital images and chemometric tools

    Article • LWT, February 2019, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  21. Dissolution and uniformity of content of tablets developed with extract of Ximenia americana L.

    Article • PLoS ONE, May 2018, PLOS

    Dr Paulo Henrique Gonçalves Dias Diniz

  22. Simultaneous identification of the wood types in aged cachaças and their adulterations with wood extracts using digital images and SPA-LDA

    Article • Food Chemistry, February 2018, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  23. Determination of fat content in chicken hamburgers using NIR spectroscopy and the Successive Projections Algorithm for interval selection in PLS regression (iSPA-PLS)

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, January 2018, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  24. Compatibility study of dry extract of Ximenia americana L. and pharmaceutical excipients used in solid state

    Article • Journal of Thermal Analysis and Calorimetry, October 2017, Springer Science + Business Media

    Dr Paulo Henrique Gonçalves Dias Diniz

  25. A digital image-based traceability tool of the geographical origins of Argentine propolis

    Article • Microchemical Journal, September 2016, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  26. Using UV–Vis spectroscopy for simultaneous geographical and varietal classification of tea infusions simulating a home-made tea cup

    Article • Food Chemistry, February 2016, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  27. Identification of biodiesel feedstock in biodiesel/diesel blends using digital images and chemometric methods

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

    Dr Paulo Henrique Gonçalves Dias Diniz

  28. Identification of adulteration in ground roasted coffees using UV–Vis spectroscopy and SPA-LDA

    Article • LWT, October 2015, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  29. Digital image-based classification of biodiesel

    Article • Talanta, July 2015, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  30. Simplified tea classification based on a reduced chemical composition profile via successive projections algorithm linear discriminant analysis (SPA-LDA)

    Article • Journal of Food Composition and Analysis, May 2015, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  31. Using iSPA-PLS and NIR spectroscopy for the determination of total polyphenols and moisture in commercial tea samples

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

    Dr Paulo Henrique Gonçalves Dias Diniz

  32. Screening for Coffee Adulteration Using Digital Images and SPA-LDA

    Article • Food Analytical Methods, November 2014, Springer Science + Business Media

    Dr Paulo Henrique Gonçalves Dias Diniz

  33. Using color histograms and SPA-LDA to classify bacteria

    Article • Analytical and Bioanalytical Chemistry, July 2014, Springer Science + Business Media

    Dr Paulo Henrique Gonçalves Dias Diniz

  34. Simultaneous Classification of Teas According to Their Varieties and Geographical Origins by Using NIR Spectroscopy and SPA-LDA

    Article • Food Analytical Methods, February 2014, Springer Science + Business Media

    Dr Paulo Henrique Gonçalves Dias Diniz

  35. Determination of sodium and calcium in powder milk using digital image-based flame emission spectrometry

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

    Dr Paulo Henrique Gonçalves Dias Diniz, Dr Luciano F Almeida

  36. Geographical origin classification of Argentinean honeys using a digital image-based flow-batch system

    Article • Microchemical Journal, January 2014, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  37. An Embedded System for Determining Free Glycerol Level in Biodiesel

    Article • November 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Paulo Henrique Gonçalves Dias Diniz

  38. Eco-friendly sonoluminescent determination of free glycerol in biodiesel samples

    Article • Talanta, September 2013, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  39. Flow-batch analysis

    Article • TrAC Trends in Analytical Chemistry, May 2012, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  40. Flow injection photometric determination of NaCl, KCl and glucose in injectable drugs exploiting Schlieren signals

    Article • Journal of Pharmaceutical and Biomedical Analysis, March 2012, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  41. Using a simple digital camera and SPA-LDA modeling to screen teas

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

    Dr Paulo Henrique Gonçalves Dias Diniz

  42. Indirect determination of sodium diclofenac, sodium dipyrone and calcium gluconate in injection drugs using digital image-based (webcam) flame emission spectrometric method

    Article • Analytical Methods, January 2011, Royal Society of Chemistry

    Dr Paulo Henrique Gonçalves Dias Diniz

  43. Digital image-based flame emission spectrometry

    Article • Talanta, March 2009, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz

  44. A flow-batch analyzer with piston propulsion applied to automatic preparation of calibration solutions for Mn determination in mineral waters by ET AAS

    Article • Talanta, October 2007, Elsevier

    Dr Paulo Henrique Gonçalves Dias Diniz