Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Jhonys Machado Freitas"'
Autor:
Jhonys Machado Freitas, Thiago da Costa Oliveira, Rodrigo Alejandro Abarza Munoz, Eduardo Mathias Richter
Publikováno v:
Frontiers in Chemistry, Vol 7 (2019)
Boron-doped diamond (BDD) electrodes present several notable properties, such as the largest potential window of all electrode materials (especially in anodic potentials), low background and capacitive currents, reduced fouling compared to other elec
Externí odkaz:
https://doaj.org/article/e15e78d958444936abe9b0001c2895a1
Autor:
Jhonys Machado Freitas, Thiago da Costa Oliveira, Rodrigo Alejandro Abarza Munoz, Eduardo Mathias Richter
Publikováno v:
Química Nova, Vol 40, Iss 7, Pp 739-744
A simple method for simultaneous determination of 8-chlorotheophylline (CTP), caffeine (CAF), and diphenhydramine (DIP) using batch-injection analysis with multiple pulse amperometric detection (BIA-MPA) is reported. A sequence of three potential pul
Externí odkaz:
https://doaj.org/article/ea1b0b2942974a6e9cb2be5a24002889
Autor:
Craig E. Banks, Thiago da Costa Oliveira, Mário H. P. Santana, Rodrigo A.A. Munoz, Jhonys Machado Freitas, Eduardo M. Richter
Publikováno v:
Sensors and Actuators B: Chemical. 282:449-456
Sibutramine is one of the most widespread adulterants encountered in herbal formulations or dietary supplements used for weight-loss purposes. In this work, a simple and portable square-wave voltammetric (SWV) method was proposed for fast screening a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6601827f1f5391c483848c59f134fc1a
https://doi.org/10.1016/j.snb.2018.11.094
https://doi.org/10.1016/j.snb.2018.11.094
Autor:
Vinicius Martins Zallocco, Jhonys Machado Freitas, Nerilso Bocchi, Ana Candida Martins Rodrigues
Publikováno v:
Solid State Ionics. 378:115888
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21208c74a7c59b87804060735b28f806
https://doi.org/10.1016/j.ssi.2022.115888
https://doi.org/10.1016/j.ssi.2022.115888
Publikováno v:
Talanta. 217
A simple, accurate, and environmentally friendly method for the simultaneous determination of the analog endocrine disruptors bisphenol S (BPS) and bisphenol A (BPA) was developed and validated. The determination was performed by square-wave voltamme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f0eeba598121d622e94ab6fe3c23f1e
https://pubmed.ncbi.nlm.nih.gov/32498895
https://pubmed.ncbi.nlm.nih.gov/32498895
Publikováno v:
Electroanalysis. 30:868-876
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e446f705cb67b5a189a73107c6f55e89
https://doi.org/10.1002/elan.201700658
https://doi.org/10.1002/elan.201700658
Autor:
Rodrigo A.A. Munoz, Eduardo M. Richter, Mário H. P. Santana, David Ramos, Thiago R.L.C. Paixão, Raquel M. F. Sousa, Jhonys Machado Freitas
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
A simple and robust batch-injection analysis system with square-wave voltammetric (BIA-SWV) detection is proposed for the determination of cocaine and screening of the most common adulterants (benzocaine, caffeine, lidocaine, phenacetin, paracetamol,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7911b56904e9ef209d8aceac197e222e
https://doi.org/10.1016/j.snb.2016.12.024
https://doi.org/10.1016/j.snb.2016.12.024
Publikováno v:
Frontiers in Chemistry
Frontiers in Chemistry, Vol 7 (2019)
Frontiers in Chemistry, Vol 7 (2019)
Boron-doped diamond (BDD) electrodes present several notable properties, such as the largest potential window of all electrode materials (especially in anodic potentials), low background and capacitive currents, reduced fouling compared to other elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aef7a5218e78f630f15abcf40097bcf5
https://doi.org/10.3389/fchem.2019.00190
https://doi.org/10.3389/fchem.2019.00190
Autor:
Jhonys Machado Freitas
Publikováno v:
Repositório Institucional da UFU
Universidade Federal de Uberlândia (UFU)
instacron:UFU
Universidade Federal de Uberlândia (UFU)
instacron:UFU
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico FAPEMIG - Fundação de Amparo a Pesquisa do Estado de Minas Gerais Neste trabalho foi demonstrado o empreg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67e3701f3ef71b73814ac356e6ea094b
https://repositorio.ufu.br/handle/123456789/24571
https://repositorio.ufu.br/handle/123456789/24571
Publikováno v:
Journal of Electroanalytical Chemistry. 882:115028
In the global obesity pandemic, the demand for healthy products that provide weight loss is increasing. However, undeclared adulterants are commonly added to increase their performance and the development of rapid methods for detecting these compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27f40aa1d2fd28e69828c4648bc0500e
https://doi.org/10.1016/j.jelechem.2021.115028
https://doi.org/10.1016/j.jelechem.2021.115028