A multicommuted flow analysis method for the photometric determination of Amoxicillin in pharmaceutical formulations using a diazo coupling reaction - Freitas, Sueny K. B.; Silva, Valdinete Lins; Araújo, Alberto N.; Montenegro, Maria Conceição B.S.M.; Reis, Boaventura Freire dos; Paim, Ana Paula Silveira (Journal of Brazilian Chemical Society, 2011)