高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (8): 1194.

• 论文 • 上一篇    下一篇

AFP抗体的标记及其电致化学发光免疫分析研究

庄惠生1, 王琼娥1, 陈国南1, 黄金陵1, 林培城2   

  1. 1. 福州大学化学系, 福州 350002;
    2. 福建省省立医院, 福州 350001
  • 收稿日期:1998-09-14 出版日期:1999-08-24 发布日期:1999-08-24
  • 通讯作者: 庄惠生,男,43岁,副教授.
  • 作者简介:庄惠生,男,43岁,副教授.
  • 基金资助:

    国家自然科学基金(批准号:29675003);国家教育部材料和生命过程分析科学开放研究实验室资助

Label of AFP Antibody and Electrochemiluminescence Immunoassay

ZHUANG Hui-Sheng1, WANG Qiong-E1, CHEN Guo-Nan1, HUANG Jin-Ling1, LIN Pei-Cheng2   

  1. 1. Department of Chemistry, Fuzhou University, Fuzhou 350002, China;
    2. Provincial Capital Hospital of Fujian, Fuzhou 350001, China
  • Received:1998-09-14 Online:1999-08-24 Published:1999-08-24

摘要: 用自制的异硫氰酸异鲁米诺标记AFP抗体,标记率平均为0.40;标记的抗体免疫活性和电致化学发光效率基本不变;研究了标记反应、双抗夹心免疫反应和电致化学发光反应的条件,建立了一种测定甲胎蛋白(α-fetoprotein,简称AFP)的双抗夹心电致化学发光免疫分析新方法,并用于测定人血清中的AFP,方法线性范围为5.0~100.0ngmL,检测限为2.0ngmL,本方法与放射免疫法比较,相关性良好.

关键词: 电致化学发光免疫分析(ECLIA), 异硫氰酸异鲁米诺, 甲胎蛋白, 标记

Abstract: Anew chemiluminescent reagent isothiocyanato-isoluminol (ITCI) was used to label Anti-AFP. The molar incorporation ratios are estimated to be 0.25~0.50 mole of ITCI per mole Anti-AFP. The results show that there are no apparent changes in the immunoreactivity of the labeled Anti-AFPand the quantum efficiency of ITCIattached to the Anti-AFP. In addition, the conditions of labeling reaction,sandwich immunoassay and electrochemiluminescent reaction were studied. Morever, a new sandwich electrochemiluminescence immunoassay(ECLIA) is firstly established, and used to detect AFP in human serum. The calibration ranges is 5.0~100.0 ng/mLand the minimal detection concentration is 2.0 ng/mL.

Key words: Electrochemiluminescence Immunoassay(ECLIA), Isothiocyanatoisoluminol, α-Fetoprotein, Label

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