title: Sensitive Aflatoxin B1 Determination Using a Magnetic Particles-Based Enzyme-Linked Immunosorbent Assay.
abstract: A magnetic particle-based enzyme-liked immunosorbent assay (mp-ELISA) has been developed as new an alternative immunoassay for Aflatoxin B1 determination. The method is based on conventional competitive ELISA whereby the anti-Aflatoxin B1 antibody is immobilized on the magnetic particles' surface. The influence of the antibody type as well as antibody immobilization on the magnetic beads surface was investigated in detail. Also, optimum values for the general parameters of the method (e.g. tracer concentration, type of antibody, and incubation time) were established. Finally, a sensitive immunoassay method (mp-ELISA) was performed for Aflatoxin B1 determination at ppt level (LOD = 1 ppt Aflatoxin B1).
authors.affiliation: Laboratory of Quality Control and Process Monitoring, University of Bucharest, 4-12 Regina Elisabeta, 030018 Bucharest, Romania. madalina.sandulescu@g.unibuc.ro.
authors.forename: Madalina
authors.initials: M
authors.lastname: Tudorache
authors.affiliation: Laboratory of Quality Control and Process Monitoring, University of Bucharest, 4-12 Regina Elisabeta, 030018 Bucharest, Romania. camelia.bala@g.unibuc.ro.|Department of Analytical Chemistry, University of Bucharest, 4-12 Regina Elisabeta, 030018 Bucharest, Romania. camelia.bala@g.unibuc.ro.
authors.forename: Camelia
authors.initials: C
authors.lastname: Bala
keywords: Aflatoxin B1; Magnetic particle-based enzyme-liked immunosorbent assay (mp-ELISA); antibody; immobilization; sensitivity