EP8.0 2.6.14 细菌内毒素 (中英文 )2.6.14. BACTERIAL ENDOTOXINS 细菌内毒素The test for bacterial endotoxins (BET) is used to detect or quantify endotoxins from gram-negative bacteria using amoebocyte lysate from the horseshoe crab (Limulus polyphenmus or Tachypleus tridentatus). There are 3 techniques for this test: the gel-clot techniques, which is based on gel formation; the turbidimetric technique, based on the development of turbidity after cleavage of an endogenouse substrate; and the chromogenic technique, based on the development of colour after cleavage of a synthetic peptide-chromogen complex.————本法利用鲎试剂(从鲎美洲鲎或中国鲎变形细胞溶解物制备而来)检测由革兰氏阴性菌产生的细菌内毒素或对内毒素进行定量。该检查包括三种方法:一为凝胶法,系利用鲎试剂与内毒素产生凝集反应的原理;第二种为浊度法(基于内源性底物断裂后,产生的浊度变化);最后一种为显色法(得到的肽-呈色基团复合物断裂后,检测反应混合物的色度)。The following 6 methods are described in the present chapter:这一章阐述了下面 6 种方法:Method A. Gel-clot method: limit testMethod B. Gel-clot method: quantitative test Method C. Turbidimetric kinetic methodMethod D. Chromogenic kinetic methodMethod E. Chromogenic end-point methodMethod F. Turbidimetric end-point method方法 A:凝胶法:限度试验方法 B:凝胶法:定量试验方法 C:动态浊度法方法 D:动态显色法方法 E:终点显色法方法 F:终点浊度法Proceed by any of the 6 methods for the test. In the event of doubt or dispute, the final decision is made based upon method A unless otherwise indicated in the monograph.检测时,可用 6 种方法的任一种进行试验。当测定结果可疑或有争议时,除非另有规定,以专论中的方法 A 的测定结果为准。The test is carried out in a manner that avoids endotoxin contamination.试验操作过程应防止内毒素的污染。1. APPARATUS 仪器Depyrogenate all glassware and other heat...