Search Results - "LIMA, Giovana F."

A Single FIA System Coupled with Reduction and Distillation Processes for the Determination of Sulfate Ion by Spectrophotometry by BRONDI, Ariadne M., LIMA, Giovana F., WISNIEWSKI, Célio, WISNIEWSKI, Maria J. S., LUCCAS, Pedro O.

“…In the present work, all steps of the sulfate reduction procedures, such as reduction, distillation and sulfate determination were joined in only one FIA…”
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Direct Introduction of Water Sample in Multisegmented Flow-Injection Analysis for Sulfide Determination by LIMA, Giovana F., BRONDI, Ariadne M., Ana L. S. F. PAIVA, TARLEY, César R. T., OLIVEIRA, André F. de, WISNIEWSKI, Célio, LUCCAS, Pedro O.

“…The present paper describes an inline flow-injection analysis system for the determination of sulfide in water samples, exploiting the Fischer reaction. Water…”
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Novel on-line sequential preconcentration system of Cr(III) and Cr(VI) hyphenated with flame atomic absorption spectrometry exploiting sorbents based on chemically modified silica by Tarley, César R.T., Lima, Giovana F., Nascimento, Danielle R., Assis, Alan R.S., Ribeiro, Emerson S., Diniz, Kristiany M., Bezerra, Marcos A., Segatelli, Mariana G.

“…In the present study, a flow injection system using dual mini-columns, SiO2/Al2O3/TiO2 and silica gel functionalized with [3-(2-aminoethylamino)propyl]…”
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Flow injection on-line minicolumn preconcentration and determination of trace copper ions using an alumina/titanium oxide grafted silica matrix and FAAS by Lima, Giovana F., Ohara, Maikow O., Clausen, Débora N., Nascimento, Danielle R., Ribeiro, Emerson S., Segatelli, Mariana G., Bezerra, Marcos A., Tarley, César R. T.

“…We describe the analytical performance of a hybrid material composed of SiO 2 , Al 2 O 3 and TiO 2 . It was prepared by a sol–gel process and can act as an…”
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Silica-alumina-niobia (SiO2/Al2O3/Nb2O5) matrix obtained by the sol-gel processing method: new material for online extraction of zinc ions by Tarley, César Ricardo T., Ávila, Thiago C. de, Segatelli, Mariana G., Lima, Giovana de F., Peregrino, Gabrielly dos S., Scheeren, Carla W., Dias, Silvio Luís P., Ribeiro, Emerson S.

“…In the present work, a new material, SiO2/Al2O3/Nb2O5 (designated as SiAlNb), was evaluated as an adsorbent in a flow injection spectrophotometric method for…”
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Highly sensitive ion preconcentration method based on flow sorbent extraction using multiwall carbon nanotubes by do Lago, Ayla C, Lima, Giovana de F, Segatelli, Mariana G, Tarley, César R.T

“…In this work a solid phase on-line uranium ion preconcentration system coupled with spectrophotometry has been developed. The method is based on uranyl ion…”
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Highly sensitive UO^sup 2^^sub 2^ ion preconcentration method based on flow sorbent extraction using multiwall carbon nanotubes by do Lago, Ayla C, Lima, Giovana de F, Segatelli, Mariana G, Tarley, César RT

“…In this work a solid phase on-line uranium ion preconcentration system coupled with spectrophotometry has been developed. The method is based on uranyl ion…”
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