
Keywords: گیرنده آنتی ژن T-cell; Biological toxins; Ricin; Botulinum neurotoxin; Staphylococcal enterotoxin; Saxitoxin; Standardization; Proficiency testing; AOAC; AOAC International; BoNT; Botulinum neurotoxin; CRM; Certified reference material; CWC; Chemical Weapons Convention; EFSA; E