title: Sample extraction techniques for biological samples: recent advances and novel applications.
authors.affiliation: School of Pharmacy, University of Oslo, Norway.
authors.forename: Astrid
authors.initials: A
authors.lastname: Gjelstad
authors.affiliation: School of Pharmacy, University of Oslo, Norway.
authors.forename: Knut Fredrik
authors.initials: KF
authors.lastname: Seip
mesh_terms: D005591:Chemical Fractionation; D057230:Limit of Detection; D011786:Quality Control
keywords: biological matrices; extraction; sample preparation