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Now showing items 1-7 of 7

ICP???AES determination of small amounts of zinc in copper-base alloys after separation by adsorption of the zinc???TAN complex on Sep Pak C18 cartridges

Teixeira, Leonardo Sena Gomes; Reis, Jos?? Oscar N.; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Korn, Maria das Gra??as Andrade; Andrade, Jailson Bittencourt de (1998)

Spectrophotometric determination of zinc in copper-base alloys with TAN

Ferreira, Sergio Luis Costa; Ara??jo, Neyla Margarida Lopo de; Santos, Adriana B.; Dantas, Alailson Falc??o; Costa, Antonio Celso Spinola (1995)

Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet

Costa, Antonio Celso Spinola; Teixeira, Leonardo Sena Gomes; Ferreira, Sergio Luis Costa (1995)

An on-line solid phase extraction system using polyurethane foam for the spectrophotometric determination of nickel in silicates and alloys

Ferreira, Sergio Luis Costa; Jesus, Djane Santiago de; Cassella, Ricardo Jorgensen; Costa, Antonio Celso Spinola; Carvalho, Marcelo Souza de; Santelli, Ricardo Erthal (1999)

Spectrophotometric determination of nickel in copper-base alloy with 2-(2-thiazoly lazo)-p -cresol

Ferreira, Sergio Luis Costa (Talanta, 1988)

Nickel and zinc determination by flow-injection solid-phase spectrophotometry exploiting different sorption rates

Teixeira, Leonardo Sena Gomes; Rocha, F??bio R. P.; Korn, Mauro; Reis, Boaventura F.; Ferreira, Sergio Luis Costa; Costa, Antonio Celso Spinola (2000)

Simultaneous spectrophotometric determination of nickel and iron in copper-base alloy with bromo???PADAP

Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Barberino, Maria Goreth Matos de Andrade; L??bo, Ivon Pinheiro (1993)