期刊
FORENSIC SCIENCE INTERNATIONAL
卷 184, 期 1-3, 页码 1-5出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.forsciint.2008.10.024
关键词
Microfluidics; Lab on a chip; Immunoassay; Stimulant; Hair analysis; Microchip-based ELISA system
An automated full-range quantitation method for identifying d-methamphetamine in human hair using a microchip-based ELISA system (microELISA) in combination with a micropulverized extraction method for sample preparation has been developed. An antibody and a peroxidase-linked methamphetamine, both are commercially available, were used for the competitive ELISA assay. Method validation was carried Out using doped hair samples, and segmental analyses of real-case specimens were carried out by both microELISA and LC/MS/MS to verify the reliability and applicability of this new method. Due to the small size of the system and the lack of an evaporation process, sample preparation and quantitation can be accomplished easily and quickly (less than 30 min) in small-scale contamination-free environments. (c) 2008 Elsevier Ireland Ltd. All rights reserved.
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