Application of Cellulose Modified with p‐Aminobenzoic Groups in Preconcentration System for Determination of Cu, Fe, Ni, and Zn in Fuel Ethanol Samples by Flame Atomic Absorption Spectrometry

Autor: Ilton Luiz de Alcântara, G. R. de Castro, Paulo dos Santos Roldan, J. D. S. de Oliveira, Cilene C. F. Padilha, Alexandre G.S. Prado, Pedro de Magalhães Padilha

Publikováno v: Separation Science and Technology. 42:1325-1340

Cellulose chemically modified with p‐aminobenzoic groups, abbreviated as Cel‐PAB, was used for preconcentration of copper, iron, nickel, and zinc from ethanol fuel, normally used in Brazil as engine fuel. The surface characteristics and the surfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de90de6f4b7ac3c80531b209152d227b
https://doi.org/10.1080/01496390701242061

Fotoquímica e fotofísica do ácido 1,4-bis(3-carbóxi-3-oxo-prop-1-enil)benzeno Photochemistry and photophysic of 1,4-bis(3-carboxy-3-oxo-prop-1-en-1-yl)benzene

Autor: R. A. Bariccatti, M. F. da Rosa, J. D. S. de Oliveira

Publikováno v: Eclética Química, Vol 29, Iss 2, Pp 15-18 (2004)

Este trabalho versa sobre a caracterização espectroscópica do ácido 1,4-bis(3-carbóxi-3-oxo-prop-1-enil)benzeno, substância com potencialidade em complexação de íons metálicos. Para isto foram obtidos espectros de UV/VIS do composto em meio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doajarticles::d39a2f0ca97b42136c4a8a5090b98c43
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702004000200002

Thermal behaviour of 1,4-bis(3-carboxy-3-oxo-prop-1-en-1-yl)benzene compounds with Ag+ and Pb2+

Autor: M. Hamer, O. S. Siqueira, Massao Ionashiro, Deoclécio José Barilli, J. D. S. de Oliveira

Publikováno v: Eclética Química v.30 n.3 2005
Eclética Química
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP
Eclética Química, Volume: 30, Issue: 3, Pages: 73-77, Published: SEP 2005
SciELO
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
Eclética Química, Vol 30, Iss 3, Pp 73-77 (2018)

This work reports the study of solid binary compounds of the 1,4-bis(3-carboxy-3-oxo-prop-1-en-1-yl)benzene dicarboxilate [Bis-BP], C 6 H 4 (-CH=CH-CO-COO-) 2 , with the metal ions Ag + and Pb 2+ . Thecompounds were obtained from adition of aqueous s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38299e4e13bdf9c9300f6946cc4cf1b2
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702005000300009