Specificity has been determined using ELISA competition experiments using conjugate of spermine Compounds Cross-reactivity ratio (a) Ornithine-G-BSA 1 Arginine-G-BSA 1/600 Diamino-Butane-G-BSA 1/> 50 000 Glutamine-G-BSA 1/> 50 000 (a) : Ornithine-G-BSA concentration/Other onjugated polyamines concentration at half displacement ; G = Glutaraldehyde, BSA = Bovine Serum Albumin. |