| abstract |
An affinity ligand-matrix conjugate comprises the matrix and conjugated thereto by the group Z, a ligand having general formula (I): wherein one X is N and the other X is N, CCL or CCn; A<SUB>1 </SUB>and A<SUB>2 </SUB>are each independently O, S or N-R<SUB>1 </SUB>and R<SUB>1 </SUB>is H, C<SUB>1-6 </SUB>alkyl, C<SUB>1-6 </SUB>hydroxyalkyl, benzyl or beta-phenylethyl; B<SUB>1 </SUB>and B<SUB>2 </SUB>are each independently an optionally substituted hydrocarbon linkage containing from 1 to 10 carbon atoms; D<SUB>1 </SUB>is H or a primary amino, secondary amino, tertiary amino, quaternary ammonium, imidazole, guanidine or amidino group; and D<SUB>2 </SUB>is a secondary amino, tertiary amino, quaternary ammonium, imidazole, guanidine or amidino group; or B<SUB>2</SUB>-D<SUB>2 </SUB>is -CHCOOH-(CH<SUB>2</SUB>)<SUB>3-4</SUB>-NH<SUB>2</SUB>; and p is 0 or 1. Such conjugates are useful for the separation, isolation, purification, characterization, identification or quantification of an endotoxin. |