Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Patricia Los Weinert"'
Autor:
Pedro Luis Sanabria Florez, Suellen Aparecida Alves, Patricia Los Weinert, Elaine Regina lopes Tiburtius
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 13, Iss 2, Pp 160-169 (2021)
Atrazine is one of the most used pesticides, although it is extremely toxic for living organisms. In spite of that, the control, removal, and elimination of this agrochemical are still deficient in water treatment plants (just over 25%). For this rea
Externí odkaz:
https://doaj.org/article/869630e0578f4ee09f48af3815c1a1d0
Publikováno v:
Revista Virtual de Química. 14:790-797
Autor:
Caroline Nocêra Benetti, Vinicius de Carvalho Soares de Paula, Adriane Martins de Freitas, Elenise Sauer, Patrícia Los Weinert, Elaine Regina Lopes Tiburtius
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 66 (2023)
Abstract This study shows the results obtained of evaluation and comparison of chemical analysis and ecotoxicity for evaluated the quality of water contaminated with gasoline after Fenton process. The process Fenton was efficient to remove the aromat
Externí odkaz:
https://doaj.org/article/a352cf70b25e45648110ef30d3d13923
Autor:
Cinthia Eloise Domingues, Januário Kordiak, Carlos R. Pedroso, Tatiana R. de Oliveira Stremel, Rosimara Zittel, Patrícia Los Weinert, Carlos M. de Sousa Vidal, Sandro X. de Campos
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 14, Iss 2 (2022)
The study of cigarette authenticity in Brazil is important due to increasing consumption of contraband cigarettes. Nicotine concentration is an important parameter reflecting the quality of tobacco used in the production of these cigarettes. Simple m
Externí odkaz:
https://doaj.org/article/922884ec047145b287cce87dd602a40e
Autor:
Karine Andréa Costa, Elizabeth Weinhardt Oliveira Scheffer, Patrícia Los Weinert, Estevan Luis Silveira
Publikováno v:
Eclética Química, Vol 43, Iss 2, Pp 51-58 (2018)
The objective of this work was to evaluate the physicochemical parameters that express the water quality of the Rio Verde, in the city of Ponta Grossa, Paraná. Multivariate Analysis was used, and quality indexes were obtained, such as the Trophic St
Externí odkaz:
https://doaj.org/article/6e3f5caa2ef9454fab38621e5effbe4f
Autor:
Tathiane Milaré, Patrícia Los Weinert
Publikováno v:
Química Nova, Vol 39, Iss 4, Pp 522-529 (2016)
This paper presents and discusses socioeconomic aspects and expectations of chemistry students at the State University of Ponta Grossa. Six classes, in the period from 2011 to 2013, were consulted during the first academic week through questionnaires
Externí odkaz:
https://doaj.org/article/f60b03c59d78443caf21c36c585f8a37
Publikováno v:
Química Nova, Vol 31, Iss 5, Pp 1112-1116 (2008)
This paper describes a simple and rapid spectrophotometric method for quantitative determination of sildenafil citrate based on its reaction with p-chloranil accelerated by hydrogen peroxide, producing a stable purple compound (λmax= 535 nm). In the
Externí odkaz:
https://doaj.org/article/33c5223dd2f1461594d9f51a487ea696