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Publikováno v:
Química Nova.
Ignis fatuus, a luminous phenomenon witnessed over the centuries by observers around the world, is no longer seen in modern times, suggesting that it is extinct. An explanation for this disappearance can be found in the description of ignis fatuus as
Publikováno v:
Química Nova.
Curcumin, a phytochemical, exhibits several biological properties and has been studied for the treatment of psoriasis. To facilitate its transdermal permeation, permeation enhancers such as choline and geranic acid ionic liquid (CAGE-IL) have been st
Publikováno v:
Química Nova.
An inert atmosphere is, in some cases, important for the performing of experiments where substances are toxic and/or sensitive to oxygen. However, the high cost and accessibility of an equipment to work under these conditions, results in the fact tha
Autor:
Juliana Santana, Iasmim Leal, Antonio Queiroz, Henrique Assumpção, José de Souza, Maria Zucchi, Ana de Albergaria-Barbosa
Publikováno v:
Química Nova.
ORGANIC MATTER SOURCES TO THE SUPERFICIAL SEDIMENT OF THE ITAPICURU RIVER ESTUARY (BAHIA - BRAZIL). The present study evaluated the sources of organic matter (O.M.) in the Itapicuru River estuary (IRE), which is in an environmentally protected area s
Autor:
Wei Zhang, Zhiqiang Cai, Wei Li, Qiuchen Huang, Ruonan Chen, Yiwen Li, Keyun Jin, Yi Zhao, Tao Sun
Publikováno v:
Química Nova, Volume: 46, Issue: 3, Pages: 257-265, Published: 08 MAY 2023
This work presented a new PEG modified calix[4]arene stationary phase (C4A-PEG-2PTSC) for gas chromatographic (GC) separations. The statically coated C4A-PEG-2PTSC column exhibited moderate polarity and column efficiency of 2224 plates m-1 determined
Autor:
Thais Costa Brunelli, Thiago Rangel Rodrigues, Angélica Yara Siqueira, João Basso Marques, Luís Curvo, Cleyton Santana, Sophia Paiva
Publikováno v:
Química Nova, Vol 44, Iss 10, Pp 1236-1244 (2021)
Química Nova v.44 n.10 2021
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 44, Issue: 10, Pages: 1236-1244, Published: 20 DEC 2021
Química Nova v.44 n.10 2021
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 44, Issue: 10, Pages: 1236-1244, Published: 20 DEC 2021
This work aims to evaluate the possible relations between the confirmed daily cases of COVID-19 and the environmental parameters for the Cuiabá-Várzea Grande conurbation in the state of Mato Grosso, Brazil. The data sets used to cover the rainy-dry
Akademický článek
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Akademický článek
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Publikováno v:
Química Nova, Vol 44, Iss 7, Pp 899-907 (2021)
Química Nova, Volume: 44, Issue: 7, Pages: 899-907, Published: 03 SEP 2021
Química Nova v.44 n.7 2021
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 44, Issue: 7, Pages: 899-907, Published: 03 SEP 2021
Química Nova v.44 n.7 2021
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
ESSENTIAL AND VEGETABLE OILS: RAW MATERIALS FOR THE MANUFACTURE OF BIOPRODUCTS IN CLASSES IN EXPERIMENTAL ORGANIC CHEMISTRY. A schedule was prepared for three undergraduate classes for the discipline of experimental organic chemistry for obtaining bi
Autor:
Cristiane Bezerra da Silva, Santos Alves Vicentini, Shirley de Mello Pereira Abrantes, Lisia M. G. dos Santos, Fabio Silvestre Bazilio, Silvana do Couto Jacob
Publikováno v:
Química Nova, Vol 44, Iss 7, Pp 868-873 (2021)
Química Nova v.44 n.7 2021
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 44, Issue: 7, Pages: 868-873, Published: 03 SEP 2021
Química Nova v.44 n.7 2021
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 44, Issue: 7, Pages: 868-873, Published: 03 SEP 2021
DETECTION AND QUANTIFICATION OF SILVER NANOPARTICLES BY spICP-MS. The growing interest in nanotechnology has led to an increase in the production and application of nanoparticles worldwide. Due to the unique functional properties of nanoparticles, th