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Immunological analysis of methamphetamine antibody and its use for the detection of methamphetamine by capillary electrophoresis with laser-induced fluorescence

Title
Immunological analysis of methamphetamine antibody and its use for the detection of methamphetamine by capillary electrophoresis with laser-induced fluorescence
Authors
Choi J.Kim C.Choi M.J.
Ewha Authors
김춘미
SCOPUS Author ID
김춘미scopus
Issue Date
1998
Journal Title
Journal of Chromatography B: Biomedical Applications
ISSN
1572-6495JCR Link
Citation
vol. 705, no. 2, pp. 277 - 282
Indexed
SCOPUS WOS scopus
Abstract
An accurate, simple and rapid immunoassay is demonstrated for the detection of methamphetamine in urine by capillary electrophoresis (CE) with laser-induced fluorescence (LIF). An aminobutyl derivative of methamphetamine was conjugated with proteins, and used as an immunogen to produce antibodies for the assay. The methamphetamine derivative was also labeled with fluorescein isothiocyanate (FITC) to compete with free methamphetamine in the sample for the antibody binding site. Levels of free and antibody-bound FITC-labeled methamphetamine were monitored by performing CE-LIF using an untreated fused-silica column. This competitive immunoassay used antiserum instead of purified antibody or antibody fragment, yet was found to have good precision with a sensitivity of lower than 20 ng/ml. Various antibodies were also screened, and cross-reactivity of anti-MA antibody with methamphetamine analogues were also investigated. The results indicate that CE-LIF-based immunoassay is a powerful tool for the screening and characterization of antibody and may have possible applications in the detection of abused drugs in urine.
DOI
10.1016/S0378-4347(97)00527-6
Appears in Collections:
약학대학 > 약학과 > Journal papers
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