关键词: font-size:medium, ">能力验证样品；细菌内毒素；动态浊度法；含量检测

Abstract: Objective： To establish a method for determination of the concentration of bacterial endotoxin in proficiency testing samples. Methods： Kinetic turbidimetric method was adopted to generate the standard curve and dilution rate of test sample. Bacterial endotoxin was added into test sample for interference test. Linear range and bacterial endotoxin in proficiency testing samples were determined. Results：The linear range of bacterial endotoxin was 0.031 25-2.0 EU·mL-1（r＝-0.996 2）. The endotoxin test wasn’t interfered by 200-1600 times diluted solution. The recovery rate of bacterial endotoxin was 50％～200％. The concentration of endotoxin in the proficiency testing sample was 66.44 EU. Conclusion： The kinetic turbidimetric method is suitable for bacterial endotoxin test of proficiency testing samples.
  

Key words: font-size:medium, ">Proficiency testing samples； Bacterial endotoxin； Kinetic turbidimetric method； Content determination