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This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Discrimination between ricin and RCA-1 by two sandwich pairs in standard ECL assay, with secondary detection by Ru(bpy)3-streptavidin. Luminescence readings are shown for 100 ng/mL of agglutinin, with blanks subtracted (mean ± sd).