title: FIA-AAS determination of salicylic acid by a solid-phase reactor of copper carbonate incorporated in polyester resin beads.
abstract: The determination of salicylic acid was carried out by reaction of the drug with copper carbonate entrapped in a polymeric material in a solid-phase reactor; the released cupric ions were monitored by flame atomic absorption at 324.8 nm. The calibration graph is linear over the range 4.0-75 mug ml(-1) of salicylic acid, with a relative standard deviation of less than 1.5% and a sample throughout of 257 h(-1). The influence of foreign compounds was studied and the method was applied to the determination of salicylic acid content in two different pharmaceutical formulations.
authors.affiliation: Department de Quimica Analitica, Universitat de València., Moliner 50, Burjasot València, Spain.
authors.forename: G A
authors.initials: GA
authors.lastname: Rivas
authors.forename: J M
authors.initials: JM
authors.lastname: Calatayud