title: Solid-phase extraction in packed beds on glass microdevices.
abstract: This chapter provides a detailed description of a network of channels that includes a chamber for trapping beads in a microfluidic device. Instructions are included for the packing and use of the bead bed for solid-phase extraction (SPE). The SPE procedure may be used, e.g., as a filter to clean up a dirty sample prior to analysis, or as a means of pre-concentration for a dilute sample. Once the bead bed is in place, it may be used multiple times without sample breakthrough.
authors.affiliation: Department of Chemistry, Bethany College, Lindsborg, KS, USA.
authors.forename: Loranelle L
authors.initials: LL
authors.lastname: Lockyear
mesh_terms: D005898:Glass; D044085:Microfluidics / Q000295:instrumentation* / Q000379:methods*; D008863:Microspheres