<prompt> Limulus amoebocyte lysate assay is used for the detection ofExotoxinEndotoxinPreformed toxinNone  <response>: Limulus amebocyte lysate LAL is an aqueous extract of blood cells amoebocytes from the Atlantic horseshoe crab, Limulus polyphemus. LAL reacts with bacterial endotoxin lipopolysaccharide LPS, which is a membrane component of gram-negative bacteria.LAL test is widely used for the detection and quantification of bacterial endotoxins. Ref: Ananthanaryanan 9th ed pg 78 