A5066323887- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Biosensors and Analytical Detection
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Water Quality Monitoring and Analysis
- Analytical chemistry methods development
- Spectroscopy and Chemometric Analyses
- Water Quality Monitoring Technologies
- Advanced biosensing and bioanalysis techniques
- Gas Sensing Nanomaterials and Sensors
- Mass Spectrometry Techniques and Applications
- Electrical and Thermal Properties of Materials
- Pesticide Residue Analysis and Safety
- Dye analysis and toxicity
- Various Chemistry Research Topics
- Polyamine Metabolism and Applications
- Analytical Chemistry and Chromatography
- Identification and Quantification in Food
- Carbon and Quantum Dots Applications
- Molecular Sensors and Ion Detection
- Healthcare during COVID-19 Pandemic
- Biochemical Analysis and Sensing Techniques
- Advanced oxidation water treatment
- Environmental Chemistry and Analysis
Universidade Federal de Pernambuco
2019-2025
Clemson University
2024-2025
Institute for Analytical Instrumentation
2025
Universidade Federal do Pará
2016-2020
Universidade de São Paulo
2014-2018
Universidade Federal de São Carlos
2010-2015
Departamento de Ciência e Tecnologia
2011-2015
Instituto Butantan
2015
Universidade Federal da Paraíba
2007-2011
University of Beira Interior
2010
The digital image analysis together with spot-test based on a colorimetric assay produces fast, low waste, screening and<italic>in situ</italic>analysis.
Abstract A bismuth‐film electrode (BiFE) ex situ electrochemically deposited onto a copper substrate has been presented for paraquat determination. The bismuth film was at an applied potential of −0.18 V vs. Ag/AgCl (3.0 M KCl) 200 s. analytical curve linear in the concentration range from 6.6×10 −7 to 4.8×10 −5 with limit detection 9.3×10 −8 M. method satisfactory results confidence level 95% and performance evaluated water samples.
A combination of a spot-test and digital image analysis for determination sulfite in beverages by reduction Fe(<sc>iii</sc>) complex.
This paper reports the development and application of a low-cost multifunctional webcam spectrophotometer for conduct molecular absorption fluorometric measurements. The equipment, which costs approximately US$20 to be fabricated, consists webcam, diffraction grating, slit, all positioned inside an MDF box. Spectral measurements were carried out using equipment with aid free software. was found suitable conducting qualitative quantitative analyses fluorescence, absorption, emission spectra...
A simple chromatographic paper based colorimetric assay for the analysis of selected food compounds.
A simple, low-cost and easy-to-handle procedure based on carbon quantum dots is proposed to check commercially available formulated microbicides that are used mitigate the transmission of viruses, such as SARS-COV-2, or bacterial diseases.
The present study reports, for the first time, development and application of a method based on digital imaging analysis simultaneous determination Cu 2+ furfural in cachaça samples using two-phase system chemometrics tools.