Turbidimetric determination of sulfate in rainwater employing a LED based photometer and multicommuted flow analysis system with in-line preconcentration
Néstor Zárate Ricardo Pérez-Olmos; Boaventura Freire dos Reis
Journal of the Brazilian Chemical Society São Paulo v. 22, n. 6, p. 1009-1014, 2011
São Paulo 2011
Item não circula. Consulte sua biblioteca.(Acessar)
Turbidimetric determination of sulfate in rainwater employing a LED based photometer and multicommuted flow analysis system with in-line preconcentration
Néstor Zárate Ricardo Pérez-Olmos; Boaventura Freire dos Reis
Journal of the Brazilian Chemical Society São Paulo v. 22, n. 6, p. 1009-1014, 2011
São Paulo 2011
Item não circula. Consulte sua biblioteca.(Acessar)
Determination of gibberellic acid by sequential injection analysis using a potentiometric detector based on Mn(III)-porphyrin with improved characteristics
Emília M G Santos Cristina M C M Couto; Alberto N Araújo; Maria Conceição B S M Montenegro; Boaventura Freire dos Reis
Journal of the Brazilian Chemical Society São Paulo v. 15, n. 5, p. 701-707, 2004
São Paulo 2004
Item não circula. Consulte sua biblioteca.(Acessar)