W
Willian Toito Suarez
Researcher at Universidade Federal de Viçosa
Publications - 50
Citations - 642
Willian Toito Suarez is an academic researcher from Universidade Federal de Viçosa. The author has contributed to research in topics: Detection limit & Chemistry. The author has an hindex of 14, co-authored 45 publications receiving 509 citations. Previous affiliations of Willian Toito Suarez include Empresa Brasileira de Pesquisa Agropecuária & Federal University of São Carlos.
Papers
More filters
Journal ArticleDOI
Voltammetric determination of N-acetylcysteine using a carbon paste electrode modified with copper(II) hexacyanoferrate(III)
TL;DR: In this article, the preparation and electrochemical characterization of a carbon paste electrode modified with copper(II) hexacyanoferrate(III) (CuHCF) as well as its behavior as electrocatalyst toward the oxidation of N -acetylcysteine were investigated.
Journal ArticleDOI
A digital image method of spot tests for determination of copper in sugar cane spirits
Kenia Dias Pessoa,Willian Toito Suarez,Marina Ferreira dos Reis,Mathews de Oliveira Krambeck Franco,Renata Pereira Lopes Moreira,Vagner Bezerra dos Santos +5 more
TL;DR: The spot test method associated with DIB allows the use of devices as digital cameras and smartphones to evaluate colorimetric reaction with low waste generation, practicality, quickness, accuracy, precision, high portability and low-cost.
Journal ArticleDOI
Generation and destruction of unstable reagent in flow injection system: determination of acetylcysteine in pharmaceutical formulations using bromine as reagent.
TL;DR: A flow injection spectrophotometric procedure was developed for determination of acetylcysteine in sachets and liquid formulations by reacting it with bromine chemically generated in flow injection system monitored continuously at 400 nm.
Journal ArticleDOI
Low cost in situ digital image method, based on spot testing and smartphone images, for determination of ascorbic acid in Brazilian Amazon native and exotic fruits
Vagner Bezerra dos Santos,Emelle K.N. da Silva,Larissa M.A. de Oliveira,Willian Toito Suarez +3 more
TL;DR: A method that employed a smartphone to capture images obtained from a colorimetric spot test to determine ascorbic acid (AA) in Brazilian Amazon native and exotic fruits and results were in close agreement with a confidence level of 95% (paired t-test).
Journal Article
Flow injection spectrophotometric system for N-acetyl-L-cysteine determination in pharmaceuticals
Ana Luiza De Toledo Fornazari,Willian Toito Suarez,Heberth Juliano Vieira,Orlando Fatibello-Filho +3 more
TL;DR: In this paper, a flow injection system with spectrophotometric detection was proposed for determining N-acetyl-L-cysteine in pharmaceutical formulations, and the linearity of the calibration curve for Nacetyl L-Cysteine ranged from 3.5×10-6 to 4.3×10 -4 M.