title: Development of a stand-alone affinity clean-up for lysergic acid diethylamide in urine.
abstract: A total analysis scheme for lysergic acid diethylamide (LSD) from human urine is described. A simple ELISA technique led to the development and optimization of an affinity clean-up cartridge, resulting in high purification factors with a single combined extraction/clean-up step. LSD can be measured with a straightforward HPLC-fluorescence technique, which minimizes operating complexity and process implementation time. The method has been applied to urine containing 0.5 ng ml-1 LDS, and the ability of high-affinity materials to preconcentrate a sample into a small volume should allow the working range of the procedure to be adjusted as required.
authors.affiliation: Laboratory of the Government Chemist, Teddington, Middlesex, UK.
authors.forename: J M
authors.initials: JM
authors.lastname: Francis
authors.forename: D H
authors.initials: DH
authors.lastname: Craston
mesh_terms: D002846:Chromatography, Affinity; D002851:Chromatography, High Pressure Liquid; D004797:Enzyme-Linked Immunosorbent Assay; D006213:Hallucinogens / Q000652:urine*; D006801:Humans; D008238:Lysergic Acid Diethylamide / Q000652:urine*; D013050:Spectrometry, Fluorescence
chemical_list: D006213:Hallucinogens; D008238:Lysergic Acid Diethylamide