Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Rubén DEL TÓRO DÉNIZ"'
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
A method has been developed for the extraction and spectrophotometric determination of Hg2+ in a concentration range of 0.2-1.0 mg L-1; following the Lambert-Beer's law using high molecular weight quaternary ammonium salts dissolved in chloroform. Th
Externí odkaz:
https://doaj.org/article/820da79c8f2d4865b486ed8427cf7077
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
A sorption concentration method using impregnated silica has been developed to determine small concentration of lead in water by Atomic Absorption Spectrometry.
Externí odkaz:
https://doaj.org/article/85d2811a2d374df9b98b2acfea4353d1
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
A nitrate selective electrode was prepared for use in an aggresive medium (high acidic or basic concentration). It is demonstrated that the depending E graph with respect to pNO3- has not a Nernstian response in concentration acidic range upper 0.1 m
Externí odkaz:
https://doaj.org/article/7d009c2181324301a2ab58a8e97fca9e
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
A sorption concentration method using impregnated silica has been developed to determine small concentration of lead in water by Atomic Absorption Spectrometry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2db98c2b1a8e38b33ad3c7b15c3221bf
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/619
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/619
Autor:
S. Martinéz Sáez, Jorge González García, A. Ramos Vega, V.V. Egonov, E. Del Tóro Déniz, Rubén Del Tóro Déniz
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
The determination of the total calcium in juice, syrups, and other products of the sugar industry is investigated. Total calcium and free calcium is determinated by AAS and employing Ca-selective electrode respectively. A coefficient is obtained for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63063867657217b91b3f546089ed1623
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/618
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/618
Autor:
Marlene Seijó Echevarría, Rubén Del Tóro Déniz, Juan Jose Rodriguez Moya, Gerard A Sherbakov, Eugenio Martinez Castellanos
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
Eclética Química, Volume: 22, Pages: 15-22, Published: 1997
Eclética Química v.22 1997
Eclética Química
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP
Eclética Química, Volume: 22, Pages: 15-22, Published: 1997
Eclética Química v.22 1997
Eclética Química
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP
In this paper, we carry out a study on the process of sorption of lead in polluted waters usingnatural zeolites, with the objective of analyzing their behavior in the purification of water.Experiments are carried out under static and dynamic conditio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78d643b1142ca4e2f9cdc286ade00ffd
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/605
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/605
Publikováno v:
Eclética Química, Vol 22, Pp 199-203 (1997)
A sorption concentration method using impregnated silica has been developed to determine small concentration of lead in water by Atomic Absorption Spectrometry.Foi desenvolvido um método de concentração de sorção usando sílica impregnada, para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::4f01bd22b56388639a6869ac6d7c2564
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46701997000100016
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46701997000100016
Autor:
Andres Brocar Estevez, Rubén Del Tóro Déniz, Ana María Peón Espinosa, Hubert Dandie Marshalleck
Publikováno v:
Eclética Química, Vol 22, Iss 1 (2018)
Some models of ion-selective electrodes (ISE) and other methods have been elaborated, to quantify nitrate levels in environmental samples (water, fruits, vegetables and others), using direct potentiometry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::395e5abd30f4443e807a76be63611046
https://doi.org/10.1590/s0100-46701997000100017
https://doi.org/10.1590/s0100-46701997000100017
Publikováno v:
Eclética Química, Vol 32, Iss 2, Pp 13-16 (2018)
The performance of silica gel, modified by the impregnation with a high molecular weight quaternary amine (triethyl octadecyl ammonium iodide), used for the concentration of heavy metals occurring in water is studied. The material under study capture
Externí odkaz:
https://doaj.org/article/9b74daf4475d48c88d5397400b5ed21d