| abstract |
Method for assaying endotoxins in a liquid, in which said liquid is brought into contact, at 20 ° C. to 40 ° C., with a lysate of amule cells from the horseshoe crab and an aqueous solution of a peptide of formula: (FORMULA) in which ( Pept) is a hydrophobic peptide chain, n is 1, 2, 3, 4 or 5, B is (FORMULA) R1, R2 and R3 being H or CH3, (NH-Ar) is the remainder of a fluorescent heteroaromatic amine and X is an anion, sets the pH of the medium thus obtained to a value of 5 to 10 and dose by fluorimetry the heteroaromatic amine thus formed, and new peptides corresponding to formula (I) which can be used in said process. |