title: Shielded hydrophobic phase: a new concept for direct injection analysis of biological fluids by high-performance liquid chromatography.
authors.affiliation: Supelco, Inc., Bellefonte, PA 16823-0048.
authors.forename: D J
authors.initials: DJ
authors.lastname: Gisch
authors.forename: B T
authors.initials: BT
authors.lastname: Hunter
authors.forename: B
authors.initials: B
authors.lastname: Feibush
mesh_terms: D002220:Carbamazepine / Q000097:blood; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D010634:Phenobarbital / Q000097:blood; D014295:Trimethoprim / Q000097:blood
chemical_list: D002220:Carbamazepine; D014295:Trimethoprim; D010634:Phenobarbital