摘要:目的 为血清癌胚抗原(carcinoembryonic antigen, CEA)测定提供新的免疫学方法.方法采用化学发光免疫检测(chemiluminescence immunoassay)方法测定血清CEA.以L9(34)正交设计确定CLIA检测血清CEA的最适实验条件,并对方法的特异性、敏感性和重复性进行评价.结果 CLIA测定血清CEA的最适实验条件为:CEA McAb包被浓度10 μg/ml、ABEI-CEA McAb结合物使用发光强度为1.0×104 mv、Ⅱemin浓度为5 μm、H2O2浓度0.3%.结论 CLIA检测血清CEA特异性强、重复性好、敏感性超过ELISA和RIA方法,且与ELISA和RIA方法高度相关.
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