title: Use of membrane micropumps for introducing the sample solution in flame atomic absorption spectrometry.
abstract: The advantages of using membrane micropumps to introduce sample or standard solutions in flame atomic absorption spectrometry are discussed, using two entirely computer-controlled manifolds which allow a wide range of dispersion coefficients to be obtained. Coupling micropumps to the manifold facilitates calibration graphs to be obtained using a single standard solution. Other advantages include a handy on-line dilution stage for excessively concentrated samples as well as the possibility of obtaining pulsed absorbance-time profiles that once submitted to the Fourier transformation, provide amplitude-frequency plots representing an innovative, not yet fully exploited vision of atomic absorption analytical data.
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Murcia, E-30071 Murcia, Spain.
authors.forename: Ignacio
authors.initials: I
authors.lastname: López-García
authors.forename: Joanna
authors.initials: J
authors.lastname: Kozak
authors.forename: Manuel
authors.initials: M
authors.lastname: Hernández-Córdoba